CN118339513A

CN118339513A - Iris diaphragm device and camera module

Info

Publication number: CN118339513A
Application number: CN202280080322.4A
Authority: CN
Inventors: 诸海江; 曹前进; 洪超; 鲁晓峰; 赵波杰; 黄桢; 袁栋立; 白华; 许源霄; 郑雪莹
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2021-12-08
Filing date: 2022-12-07
Publication date: 2024-07-12

Abstract

An iris diaphragm device (100) and an imaging module, the iris diaphragm device (100) comprising: a mounting case (11); a blade (3) provided on the mounting housing (11), the blade (3) being configured to rotate to form an aperture-adjustable entrance aperture (30); a wiring board (12) provided on the mounting case (11), the mounting case (11) having a receiving hole for receiving a component on the wiring board on a bottom surface opposite to the wiring board (12); and a driving mechanism (2) configured to drive the rotation of the blade (3) to adjust the aperture of the inlet hole (30). The iris diaphragm device (100) utilizes the space of the installation shell (11), an avoidance containing hole is formed in the installation shell (11), a component which protrudes out of the circuit board (12) and occupies a large space is contained in the containing hole in the installation shell (11), the circuit board (12) is tightly attached to the installation shell (11), and the whole size of the iris diaphragm device (100) is reduced.

Description

Iris diaphragm device and camera module

Technical Field

The application relates to the technical field of optical imaging, in particular to an iris diaphragm device and an imaging module.

Background

In recent years, the volume of a camera module mounted on a portable device such as a smart phone, a tablet computer, or the like is becoming smaller, so that the aperture index of the camera is increasing. However, in many conventional camera modules, the aperture index is uniquely determined and cannot be universally altered. Therefore, there is a need for a small and thin iris diaphragm device capable of changing the aperture index of a camera of a portable device.

The iris diaphragm is an important part of the camera module, and is provided with a diaphragm aperture, the light inlet amount of the camera module can be adjusted by adjusting the area of the diaphragm aperture, so that the camera module has different brightness and depth of field, when the area of the diaphragm aperture is large, the camera module has larger light inlet amount, so that the formed image has high brightness and good background blurring effect, and when the area of the diaphragm aperture is small, the camera module has smaller light inlet amount, so that the details are clear in the formed image.

As an important component of the camera module, the characteristics of the iris diaphragm can affect the functions of the camera module, for example, the size and thickness of the mobile phone are small, and the space for setting the camera module is also small. In the prior art, the volume of the iris diaphragm is generally larger, and in addition, a driving mechanism is required to drive the iris diaphragm to move, so that the lens with the iris diaphragm function is larger in volume, and the miniaturization design of the camera module is not facilitated. In addition, the iris diaphragm is used as a part of the camera module, and the connection of the circuit structure of the iris diaphragm inevitably increases the complexity of the overall structure of the camera module. Because the iris diaphragm is positioned at the front end of the lens part of the camera module, the stability of the circuit structure of the iris diaphragm can directly influence the functional stability of the camera module. The conventional iris diaphragm device may limit the structure of the motor due to size and structure limitations, thus making the motor incapable of providing a greater driving force.

Disclosure of Invention

According to a first aspect of the invention:

A main advantage of the present invention is to provide an iris diaphragm and an image pickup module with the iris diaphragm, wherein the iris diaphragm can generate a larger driving force so that the iris diaphragm device can realize a larger angle of rotation.

Another advantage of the present invention is to provide an iris diaphragm and an image capturing module with the iris diaphragm, wherein the iris diaphragm includes a fixed base and an electrical connection assembly embedded in the fixed base, which is beneficial to simplifying the structure of the iris diaphragm and improving the yield of products.

Another advantage of the present invention is to provide an iris diaphragm and an image pickup module having the same, wherein the iris diaphragm includes a fixed base and an electrical connection member built in the fixed base, which is advantageous in reducing the size of the iris diaphragm in the optical axis direction, thereby achieving miniaturization and slimness of the iris diaphragm.

Another advantage of the present invention is to provide an iris diaphragm and an image capturing module with the iris diaphragm, wherein the electrical connection component of the iris diaphragm is embedded in the fixed base, and at least a portion of the electrical connection component is exposed on the surface of the fixed base so as to be electrically connected to the driving element, so that stability of electrical connection between the electrical connection component and the driving element is improved.

Another advantage of the present invention is to provide an iris diaphragm and an image pickup module having the iris diaphragm, wherein the electrical connection assembly includes at least two conductive sheets, wherein the at least two conductive sheets are separated from each other, and an electric current flows in from one of the at least two conductive sheets, flows out from the other of the at least two conductive sheets after passing through the driving element, and the series connection between the driving coil groups of the driving element is achieved through the conductive sheets separated from each other of the electrical connection assembly so as to increase the driving force by a plurality of driving coil groups.

An iris diaphragm of the present invention includes:

a base;

A blade assembly, wherein the blade assembly is movably disposed to the base;

The driving assembly is arranged between the base and the blade assembly, is in transmission connection with the blade assembly, drives the blade assembly to rotate, and forms a light transmission hole with a variable aperture size through the rotation of the blade assembly; the driving assembly comprises at least two coil groups and at least two magnet groups, and the at least two coil groups and the at least two magnet groups are oppositely arranged along the optical axis direction; and

The reset component and the at least two magnet groups are oppositely arranged along the horizontal direction, the reset component is arranged on one of the base or the blade component, the at least two magnet groups are arranged on the other of the base or the blade component, and a repulsive force along the horizontal direction is generated between the reset component and the at least two magnet groups.

According to an embodiment of the present invention, the reset component is located at one side of the at least two magnet sets, and is disposed opposite to the at least two magnet sets along a horizontal direction, and generates a force opposite to each other along the horizontal direction.

According to an embodiment of the invention, the reset assembly comprises a first reset element and a second reset element, wherein the first reset element and the second reset element are symmetrically arranged along the optical axis.

According to an embodiment of the present invention, the at least two magnet groups include a first magnet and a second magnet, wherein the first magnet is disposed opposite to the first reset element in a horizontal direction, and the second magnet is disposed opposite to the second reset element in a horizontal direction.

According to an embodiment of the present invention, the first reset element and the first magnet have the same magnetic pole, and the second reset element and the second magnet have the same magnetic pole, so that the reset component and the at least two magnet groups generate a repulsive force.

According to an embodiment of the present invention, the reset assembly further includes a third reset element and a fourth reset element, the third reset element is located at a side portion of the first magnet, the fourth reset element is located at a side portion of the second magnet, the first magnet is disposed opposite to the third reset element in a horizontal direction, and the second magnet is disposed opposite to the fourth reset element in the horizontal direction.

According to an embodiment of the present invention, the position sensing assembly further includes a sensing magnet and a sensing element, and the sensing magnet and the sensing element are disposed opposite to each other in the optical axis direction.

According to an embodiment of the present invention, the blade assembly includes a movable carrier and a plurality of blade units disposed on the movable carrier, wherein the at least two magnet sets of the driving assembly are disposed on the movable carrier, and the at least two coil sets are disposed on the base and are disposed opposite to the at least two magnet sets.

According to an embodiment of the present invention, the blade assembly includes a movable carrier and a plurality of blade units disposed on the movable carrier, wherein the at least two magnet sets of the driving assembly are disposed on the base, and the at least two coil sets are disposed on the movable carrier and are disposed opposite to the at least two magnet sets.

According to an embodiment of the invention, further comprising a weight element, wherein the weight element and the sensing magnet are arranged symmetrically along the optical axis, and the weight element and the sensing magnet are arranged at the back side of the movable carrier.

According to an embodiment of the present invention, the electric connection assembly is disposed on the base, and the at least two coil sets are connected in series by the electric connection assembly.

According to an embodiment of the present invention, the movable carrier includes a carrier body and a carrier extension integrally extending outward from the carrier body, the carrier extension including a first carrier extension, a second carrier extension, a third carrier extension, and a fourth carrier extension, wherein the first carrier extension and the third carrier extension are symmetrically disposed about an optical axis, and the second carrier extension and the fourth carrier extension are symmetrically disposed about the optical axis.

According to an embodiment of the invention, the base comprises a base body and a plurality of limit stops, wherein the first and second reset elements of the reset assembly are provided to the limit stops of the base.

According to an embodiment of the present invention, further comprising a magnetism increasing sheet, wherein the magnetism increasing sheet is integrally formed to the movable carrier.

According to an embodiment of the present invention, the movable carrier further comprises a support member disposed between the movable carrier and the base

According to an embodiment of the present invention, the sensor further includes a magnetic attraction member, wherein the magnetic attraction member is disposed opposite to the sensing magnet and the weight element in a height direction.

The invention further provides a variable aperture comprising:

a base;

A blade assembly, wherein the blade assembly is movably disposed to the base;

The driving assembly is arranged between the base and the blade assembly, is in transmission connection with the blade assembly, drives the blade assembly to rotate, and forms a light transmission hole with a variable aperture size through the rotation of the blade assembly;

the position sensing assembly comprises a sensing magnet and a sensing element which is arranged opposite to the sensing magnet along the optical axis direction; and

The reset component and the sensing magnet are oppositely arranged along the horizontal direction, the reset component is arranged on one of the base and the blade component, the sensing magnet is arranged on the other of the base and the blade component, and a repulsive force along the horizontal direction is generated between the reset component and the sensing magnet.

According to an embodiment of the present invention, the reset component is located at one side of the sensing magnet, and is disposed opposite to the sensing magnet along a horizontal direction, and generates a force opposite to each other along the horizontal direction.

According to an embodiment of the present invention, the sensing magnet is disposed along the optical axis, and the sensing magnet is disposed opposite to the first reset element along the horizontal direction, and the weight element is disposed opposite to the second reset element along the horizontal direction.

According to an embodiment of the present invention, the magnetic poles of the reset component and the sensing magnet are the same, so that the reset component and the sensing magnet generate a repulsive force therebetween.

According to an embodiment of the present invention, the reset assembly further includes a third reset element and a fourth reset element, the first reset element and the third reset element are located on opposite sides of the sensing magnet, and the second reset element and the fourth reset element are located on opposite sides of the weight element.

According to an embodiment of the present invention, the projection of the sensing magnet on the projection plane perpendicular to the optical axis is included in the projection of the reset component on the projection plane perpendicular to the optical axis.

According to an embodiment of the present invention, the first reset element and the second reset element are disposed on opposite sides of the symmetry axis, the third reset element and the fourth reset element are disposed on opposite sides of the symmetry axis, the sensing magnet is balanced under the action of the first reset element and the third reset element, and the weight element is balanced under the action of the second reset element and the fourth reset element.

According to an embodiment of the present invention, the driving assembly includes at least two coil sets and at least two magnet sets, where the at least two coil sets and the at least two magnet sets are disposed opposite to each other along the optical axis direction.

The invention further provides a camera module, comprising:

A photosensitive assembly;

A lens assembly, wherein the lens assembly is disposed in a photosensitive path of the photosensitive assembly; and

The iris diaphragm of any one of the above, wherein the iris diaphragm is located on the light entrance side of the lens assembly.

According to a second aspect of the invention:

In accordance with one aspect of the present invention, an iris diaphragm of the present invention capable of achieving the foregoing and other objects and advantages includes:

a base;

A blade assembly, wherein the blade assembly is movably arranged on the base, the blade assembly comprises a movable carrier and a plurality of blade units movably arranged on the movable carrier, wherein the plurality of blade units form a light transmission hole with a variable aperture size;

The driving assembly is arranged on the base, is in transmission connection with the blade assembly, and drives the movable carrier to rotate so as to drive the blade units to rotate; the position sensing assembly comprises a sensing magnet and a sensing element, and the sensing magnet and the sensing element are oppositely arranged along the axial direction; and

The magnetic attraction component and the sensing magnet are oppositely arranged along the horizontal direction, wherein the magnetic attraction component is arranged on one of the base or the movable carrier, and the sensing magnet is arranged on the other of the base or the movable carrier so as to generate acting force along the horizontal direction between the sensing magnet and the magnetic attraction component.

According to one embodiment of the present invention, the blade assembly includes a movable carrier and a plurality of blade units provided to the movable carrier, the sensing magnet is provided to the base, the sensing element is provided to the movable carrier, and the sensing magnet is provided opposite to the magnet assembly in a horizontal direction.

According to one embodiment of the invention, the sensing magnet comprises a sensing magnet, wherein the sensing magnet comprises a sensing magnet body, a sensing magnet body and a weight element, wherein the weight element is arranged with the sensing magnet Dan Duichen, the magnet assembly further comprises a first magnet unit and a second magnet unit, wherein the first magnet unit is positioned at the side part of the sensing magnet body and corresponds to the sensing magnet body, and the second magnet unit is positioned at the side part of the weight element and corresponds to the weight element.

According to one embodiment of the invention, the first magnetic unit is made of metal, and the first magnetic unit is a vertical iron sheet extending from top to bottom.

According to one embodiment of the present invention, the first magnetic unit is made of metal, and includes a cross member and a longitudinal member integrally extending from the cross member in the optical axis direction, and is embedded in the base, wherein the cross member of the first magnetic unit is located on top of the longitudinal member.

According to one embodiment of the present invention, the first magnetic unit is made of metal, and includes a cross member and a longitudinal member integrally extending from the cross member in the optical axis direction, and is embedded in the base, wherein the cross member of the first magnetic unit is located at the bottom of the longitudinal member.

According to one embodiment of the present invention, the first magnetic attraction unit is made of magnetic material.

According to one embodiment of the present invention, the projection of the sensing magnet on the projection plane perpendicular to the optical axis is included in the projection of the magnetic attraction component on the projection plane perpendicular to the optical axis, so that the magnetic attraction force of the sensing magnet and the magnetic attraction component in the horizontal direction.

According to one embodiment of the invention, further comprising a support assembly, wherein the support assembly is provided to the movable carrier and the base.

According to one embodiment of the present invention, further comprising a magnetic attraction member, wherein the magnetic attraction member is disposed opposite to the position sensing magnet in a height direction.

According to one embodiment of the present invention, the driving assembly includes at least two coil sets and at least two magnet sets, the at least two coil sets and the at least two magnet sets are disposed opposite to each other, wherein the at least two magnet sets are disposed on the movable carrier, and the at least two coil sets are disposed on the base.

According to one embodiment of the present invention, the driving assembly includes at least two coil sets and at least two magnet sets, the at least two coil sets and the at least two magnet sets are disposed opposite to each other, wherein the at least two magnet sets are disposed on the base, and the at least two coil sets are disposed on the movable carrier.

According to one embodiment of the present invention, the electric connection assembly is disposed on the base, and the at least two coil sets are electrically connected to the electric connection assembly.

According to one embodiment of the invention, the electrical connection assembly comprises at least two mutually separated conductive plates, the at least two coil groups of the drive assembly being connected in series by the at least two conductive plates of the electrical connection assembly.

According to one embodiment of the invention, the blade assembly further comprises a housing, wherein the housing is arranged above the base, and a space adapted to house and protect the drive assembly and the blade assembly is formed by the housing and the base.

According to one embodiment of the invention, the movable carrier comprises a carrier body and a carrier extension part which integrally extends outwards from the carrier body, wherein the carrier extension part is provided with a placement groove for accommodating the at least two magnet groups, and an opening of the placement groove faces the base.

According to one embodiment of the present invention, the magnetic amplifying sheet is disposed on the movable carrier, wherein the magnetic amplifying sheet is located on a side of the at least two magnet groups away from the at least two coil groups.

According to an embodiment of the invention, further comprising a spacer, wherein the spacer is arranged between the blade unit and the movable carrier.

According to another aspect of the present invention, there is further provided an image capturing module, including:

A photosensitive assembly;

According to a third aspect of the invention:

a base;

A blade assembly, wherein the blade assembly is movably disposed to the base;

The driving assembly is arranged on the base, is in transmission connection with the blade assembly, and is used for driving the blade assembly to rotate, and a light transmission hole with a variable aperture size is formed by the blade assembly; and

And the electric connecting component is embedded in the base, and at least one part of the electric connecting component is exposed on the surface of the base and is electrically connected with the driving component so as to electrically conduct the driving component through the electric connecting component.

According to one embodiment of the present invention, the driving assembly includes at least two coil groups and at least two magnet groups disposed opposite to each other, wherein the at least two coil groups are connected in series by the electrical connection assembly.

According to one embodiment of the present invention, the electrical connection assembly includes a first conductive sheet, a second conductive sheet, and a third conductive sheet, wherein the first conductive sheet, the second conductive sheet, and the third conductive sheet are separated from each other, and at least a portion of the first conductive sheet, the second conductive sheet, and the third conductive sheet are exposed on an upper surface of the base, so as to achieve electrical circuit conduction between the electrical connection assembly and the at least two coil groups.

According to one embodiment of the present invention, the coil assembly further comprises a conductive substrate, wherein the conductive substrate is disposed on the bottom surface of the base, and the at least two coil assemblies are electrically connected to the conductive substrate through an electrical connection assembly.

According to one embodiment of the present invention, the first conductive sheet includes a first conductive end and a second conductive end integrally extending from the first conductive end, and the first conductive end is at least partially exposed on the upper surface of the base so as to be electrically connected with the first sub-coil; the second conductive end bends downwards from the plane of the first conductive end to form a concave part so as to be electrically connected with the conductive substrate through the second conductive end.

According to one embodiment of the invention, the second conductive sheet includes a conductive sheet body, a third conductive end integrally extending outwardly from the conductive sheet body, and a fourth conductive end, the third conductive end and the fourth conductive end being at least partially exposed at the upper surface of the base such that the third conductive end is electrically connected to the second sub-coil, the fourth conductive end is electrically connected to the third sub-coil, and the conductive sheet body, the third conductive end, and the fourth conductive end are located in the same horizontal plane.

According to one embodiment of the invention, the third conductive sheet comprises a fifth conductive end and a sixth conductive end integrally extending from the fifth conductive end, and the fifth conductive end is at least partially exposed on the upper surface of the base so as to be electrically connected with the fourth sub-coil; the sixth conductive terminal is bent downwards from the plane of the fifth conductive terminal to form a concave part so as to be electrically connected with the conductive substrate through the sixth conductive terminal.

According to one embodiment of the invention, the blade assembly comprises a movable carrier and a plurality of blade units arranged on the movable carrier, wherein the driving assembly is arranged between the movable carrier and the base, and the movable carrier is driven to rotate along a specific direction by the driving assembly.

According to one embodiment of the present invention, the at least two coil groups are fixed to the movable carrier, and the at least two magnet groups are disposed on the base and opposite to the at least two coil groups.

According to one embodiment of the present invention, the at least two coil groups are fixed to the base, and the at least two magnet groups are disposed on the movable carrier and are opposite to the at least two coil groups.

According to one embodiment of the present invention, the at least two coil groups include a first coil and a second coil, the first coil and the second coil are symmetrically disposed around the optical axis, the first coil includes a first sub-coil and a second sub-coil, the second coil includes a third sub-coil and a fourth sub-coil, the first sub-coil and the second sub-coil are disposed adjacent to each other in the horizontal direction, and the third sub-coil and the fourth sub-coil are disposed adjacent to each other in the horizontal direction.

According to one embodiment of the present invention, the at least two magnet groups include a first magnet and a second magnet, the first magnet and the second magnet are symmetrically disposed around the optical axis, the first magnet and the first coil are disposed opposite to each other in the height direction, and the second magnet and the second coil are disposed opposite to each other in the height direction.

According to one embodiment of the present invention, the first magnet includes a first sub-magnet and a second sub-magnet, the second magnet includes a third sub-magnet and a fourth sub-magnet, the first sub-magnet and the second sub-magnet are disposed adjacent to each other in a horizontal direction, and the third sub-magnet and the fourth sub-magnet are disposed adjacent to each other in the horizontal direction.

According to one embodiment of the present invention, the first magnet includes a first sub-magnet, a second sub-magnet, and a third sub-magnet, the second magnet includes a fourth sub-magnet, a fifth sub-magnet, and a sixth sub-magnet, the first sub-magnet, the second sub-magnet, and the third sub-magnet are disposed adjacently in a horizontal direction, and the fourth sub-magnet, the fifth sub-magnet, and the sixth sub-magnet are disposed adjacently in the horizontal direction.

According to one embodiment of the present invention, the first, second, and third sub-magnets are disposed opposite to the first and second sub-coils in the height direction, and the fourth, fifth, and sixth sub-magnets are disposed opposite to the third and fourth sub-coils in the height direction.

According to one embodiment of the present invention, the position sensing assembly further comprises a sensing magnet and a sensing element, wherein the sensing magnet and the sensing element are disposed opposite to each other.

According to one embodiment of the invention, the sensor magnet is arranged symmetrically around the optical axis.

According to one embodiment of the present invention, the magnetic attraction assembly further comprises a magnetic attraction assembly, wherein the magnetic attraction assembly is arranged on the base, and the magnetic attraction assembly and the at least two magnet groups or sensing magnets are arranged opposite to each other along the horizontal direction.

According to one embodiment of the present invention, the magnetic component is made of metal or magnetic material.

According to one embodiment of the invention, further comprising a support assembly disposed between the movable carrier and the base.

According to one embodiment of the present invention, the support assembly further includes a magnetic attraction member disposed opposite to the sensing magnet and the weight element in a height direction to keep the support assembly clamped between the movable carrier and the base by a magnetic attraction force between the magnetic attraction member and the sensing magnet and a magnetic attraction force between the magnetic attraction member and the weight element.

A photosensitive assembly;

According to a fourth aspect of the invention:

an object of the present application is to provide a compact iris diaphragm optical lens.

Another object of the present application is to provide an image capturing module with a small size and a variable aperture function.

In order to achieve the above object, the present application provides an iris diaphragm optical lens comprising:

An iris diaphragm device including a blade configured to rotate to form an incident hole having an adjustable aperture, the iris diaphragm device further having a light passing hole located on an image side of the incident hole; and

And one end of the optical lens extends into the light through hole from the image side of the light through hole, the periphery side of the optical lens is provided with a diaphragm bearing part, and the iris diaphragm device is supported by the diaphragm bearing part.

Further, the optical lens comprises a lens barrel and a plurality of lenses arranged in the lens barrel, the lens barrel comprises a first lens barrel part close to an image side and a second lens barrel part close to an object side, the outer diameter of the first lens barrel part is larger than that of the second lens barrel part, and the second lens barrel part wholly or partially extends into the light transmission hole.

Further, the first barrel portion and the second barrel portion are of an integral structure; or the first lens barrel portion and the second lens barrel portion are of a split structure.

Further, the bottom surface of the iris device is supported against the diaphragm supporting portion, and/or the inner wall of the light passing hole of the iris device is supported against the diaphragm supporting portion. .

Further, glue is arranged between the iris diaphragm device and the diaphragm bearing part for bonding.

Further, the iris diaphragm optical lens further includes a second optical lens disposed on an object side of the iris diaphragm device.

Further, the iris diaphragm device comprises a fixing portion and a driving mechanism arranged on the fixing portion, the light transmission hole is formed in the middle of the fixing portion, the blades are movably arranged on the fixing portion, and the driving mechanism is configured to drive the blades to rotate so as to adjust the aperture of the incident hole.

Further, the fixed part comprises an installation shell and a circuit board, a light passing hole is formed in the middle of the installation shell, the circuit board and the driving mechanism avoid the light passing hole to be arranged on the installation shell, the blades are movably arranged on the installation shell, so that the incident holes formed by the blades are opposite to the light passing hole, and the blades, the driving mechanism and the circuit board are sequentially arranged along the direction of an optical axis.

Further, the driving mechanism comprises a driving piece, a driving magnet and a driving coil, wherein the driving piece, the driving magnet and the driving coil are sequentially arranged along the direction of an optical axis, the driving piece is movably arranged between the mounting shell and the blade and is configured to drive the blade to rotate when moving, the driving piece is in a circular ring shape, the driving magnet is arranged on the bottom surface of the driving piece, the driving coil and the driving magnet are oppositely arranged on the mounting shell or the circuit board, and the driving coil is in conductive connection with the circuit board.

Further, the iris diaphragm device includes a plurality of the blades, one end of each of the blades is rotatably connected to the mounting housing, and the other end extends above the light passing hole, so that the plurality of blades in combination define the incident hole, and each of the blades is connected to the driving member such that the driving member rotates to rotate each of the blades to adjust the aperture of the incident hole.

Further, the blade is provided with a positioning hole, the mounting shell is provided with a positioning column matched with the positioning hole, the positioning column is used as a shaft when the blade rotates, the blade is further provided with a movable hole, the driving piece is provided with a limiting column in sliding fit with the movable hole, the movable hole is provided with a stroke space for the sliding of the limiting column, and the limiting column moves in the movable hole and drives the blade to rotate when the driving piece rotates.

Further, the circuit board and the driving piece are respectively located at two sides of the installation shell, a coil through hole for accommodating the driving coil is formed in the bottom surface of the installation shell, the driving coil is arranged on the circuit board and extends into the coil through hole from the circuit board, so that the driving coil is opposite to the driving magnet arranged on the bottom surface of the driving piece, a mounting groove is formed in the bottom surface of the driving piece, and the driving magnet is embedded into the mounting groove.

Further, the circuit board is a flexible printed circuit board, the fixing portion further includes a mounting plate that is provided on a side of the mounting housing on which the circuit board is mounted, and holds the circuit board between the mounting plate and the mounting housing.

Further, the fixing portion further comprises a locking piece, the locking piece is arranged on the mounting shell in a mode that the light transmission hole is avoided, and the blade is kept between the locking piece and the mounting shell.

Further, the iris diaphragm optical lens further comprises a second optical lens, the second optical lens is arranged on the locking piece, a locking piece light-passing hole is formed in the middle of the locking piece, the second optical lens is opposite to the locking piece light-passing hole, and the bottom of the second optical lens extends to the image side and enters the locking piece light-passing hole.

Further, the bottom surface of the driving member has a first member, the mounting housing has the second member opposite to the first member, the driving member and the mounting housing are contacted in the optical axis direction by the first member and the second member, and the first member and the second member are used for reducing friction force when the driving member is displaced.

Further, the iris diaphragm device further comprises a position detection unit for detecting the position of the driving member, the position detection unit comprises a position detection magnet arranged on the driving member and a position detection sensor arranged opposite to the position detection magnet, the mounting housing is provided with a sensor through hole, the position detection sensor is arranged on the circuit board and extends into the sensor through hole, the bottom surface of the driving member is provided with a position detection groove, and the position detection magnet is embedded into the position detection groove.

The application also provides a camera shooting module, which comprises the iris diaphragm optical lens, a motor structure and a photosensitive assembly, wherein the middle part of the motor structure is provided with a lens mounting cavity, the optical lens is arranged in the lens mounting cavity, the motor structure is used for driving the optical lens to displace, and the photosensitive assembly is arranged at the image side of the optical lens and used for imaging.

Further, the bottom surface of the iris device is opposite to the upper end surface of the motor structure, the motor structure comprises a motor movable part and a motor fixed part, the optical lens is connected with the motor movable part, the iris device further comprises a driving mechanism and a circuit board for controlling the driving mechanism, and the circuit board of the iris device is electrically connected with a circuit of the motor movable part.

Further, the photosensitive assembly comprises a photosensitive chip, a second circuit board electrically connected with the photosensitive chip, a color filter arranged between the photosensitive chip and the optical lens, and a color filter bracket for supporting the color filter, and is manufactured by adopting a molding process.

According to a fifth aspect of the invention:

An object of the present application is to provide a compact iris diaphragm device.

Another object of the present application is to provide a small-sized iris diaphragm device, which can adapt to the miniaturization requirement of the camera module and realize the function of iris diaphragm of the camera module.

To achieve the above object, the present application provides an iris diaphragm device comprising:

the installation shell is provided with a light-passing hole in the middle;

A blade disposed on the mounting housing and configured to rotate to form an aperture-adjustable entry hole;

A circuit board arranged on the mounting shell, wherein a bottom surface of the mounting shell opposite to the circuit board is provided with a containing hole for containing components on the circuit board; and

The driving mechanism is arranged between the blades and the circuit board along the optical axis direction and is configured to drive the blade group to rotate so as to adjust the aperture of the incident hole.

Further, the driving mechanism comprises a driving piece, a driving magnet and a driving coil, wherein the driving piece is movably arranged on the mounting shell and is configured to drive the blade to rotate when in displacement, the driving magnet and the driving coil are oppositely arranged along the optical axis direction, one of the driving coil and the driving magnet is arranged on the driving piece, and the other of the driving coil and the driving magnet is arranged on the mounting shell or the circuit board.

Further, the circuit board and the driving piece are respectively arranged on two sides of the mounting shell along the optical axis direction, a coil through hole for accommodating the driving coil is formed in the bottom surface of the mounting shell, the driving coil is arranged on the circuit board and extends from the circuit board to the inside of the coil through hole, the driving magnet is arranged on the driving piece, a mounting groove is formed in the bottom surface of the driving piece, and the driving magnet is embedded in the mounting groove.

Further, the driving coil is arranged at a position, close to the edge, of the circuit board, and the side face of the coil through hole is communicated with the outside.

Further, the driving piece is in a circular ring shape, the driving piece is rotatably arranged on the installation shell, a plurality of blades are arranged, one end of each blade is rotatably connected with the installation shell, the other end of each blade extends to the upper portion of the light transmission hole, so that the incident hole is defined by a plurality of blade combinations, and the driving piece is connected with each blade so that each blade is driven to rotate when the driving piece rotates.

Further, the blade is provided with a positioning hole, the mounting shell is provided with a positioning column matched with the positioning hole, the positioning column is used as an axis when the blade rotates, the blade is further provided with a movable hole, the driving piece is provided with a limiting column in sliding fit with the movable hole, and the movable hole is provided with a space for the sliding of the limiting column.

Further, the bottom surface of the driving member has a first part, the mounting housing has a second part opposite to the first part, and the driving member and the mounting housing are contacted in the axial direction through the first part and the second part.

Further, the first part and the second part are a boss and a chute, respectively, the boss being adapted to slide along the chute; or the first and second members are balls and ball grooves, respectively, the balls being adapted to roll in the ball grooves.

Further, the driving member is provided with a section of the driving magnet extending radially outwards to form an enlarged end, and the mounting housing and the enlarged end form a yielding opening opposite to each other, and the width of the yielding opening is larger than that of the enlarged end.

Further, the iris diaphragm device further includes a position detection magnet provided on the driving member, and a position detection sensor opposing the position detection magnet, the position detection sensor being connected to the wiring board.

Further, the circuit board and the driving piece are respectively arranged on two sides of the installation shell along the optical axis direction, a sensor through hole for accommodating the position detection sensor is formed in the bottom surface of the installation shell, the position detection sensor is arranged on the circuit board and extends from the circuit board to the inside of the sensor through hole, a position detection groove is formed in the bottom surface of the driving piece, and the position detection magnet is embedded in the position detection groove.

Further, the driving piece is further provided with a balancing weight, and the balancing weight and the position detection magnet are symmetrically arranged to balance the gravity center of the driving piece.

Further, the circuit board and the blades are respectively arranged on two sides of the installation shell along the optical axis direction, the circuit board is arranged around the light transmission hole of the installation shell, and the circuit board is attached to the bottom surface of the installation shell.

Further, the iris diaphragm device further includes a mounting plate provided on one side of the wiring board, the wiring board is held between the mounting plate and the mounting case, and the mounting plate is made of a metal material and is adapted to be attracted by a magnet.

Further, the mounting plate is of a hollow structure, the mounting plate comprises a plurality of mutually separated mounting plate subsections, and each mounting plate subsection is arranged on one side of the circuit board at intervals.

Further, the iris diaphragm device further includes a locking piece provided at a side of the installation housing where the blade is installed to hold the blade between the locking piece and the installation housing, and a black object preventing reflection of light is provided on an object side surface of the locking piece.

Further, the aperture of the light passing hole is not smaller than the maximum aperture of the incident hole.

Further, the mounting housing extends from the edge of the light-passing hole to the image side to form a lens connection portion.

According to a sixth aspect of the invention:

An object of the present invention is to provide a blade arrangement method of an iris diaphragm and an iris diaphragm structure, which can improve the diaphragm variation range by providing a blade structure with two ends having longer distances between a pivot, a movable end and a fixed end.

An object of the present invention is to provide a blade arrangement mode of an iris diaphragm and an iris diaphragm structure, in which an adjustable light-passing hole formed by overlapping a plurality of long blades has a high roundness so as to reduce the generation of parasitic light.

An object of the present invention is to provide a blade arrangement mode of an iris diaphragm and an iris diaphragm structure, in which the blades are in the same plane by stacking, so that the multi-blade structure is more convenient for assembly.

An object of the present invention is to provide a method for arranging blades of an iris diaphragm and an iris diaphragm structure, in which the respective avoiding grooves are provided in the middle regions of the blades to prevent the blades from interfering with each other during the movement.

The invention aims to provide a blade setting mode of an iris diaphragm and an iris diaphragm structure, which are combined by six long blades, so that the thickness of the blade arranged at the uppermost layer is larger than that of other blades, thereby ensuring the accuracy of the opening of the blade and mechanically solving the mechanical problem of repeated movement of the blade.

An object of the present invention is to provide a blade arrangement of an iris diaphragm and an iris diaphragm structure, in which a side wall of each blade is subjected to a matting treatment such as coating a matting film to reduce the risk of generation of flare on the blade.

An object of the present invention is to provide a blade arrangement method of an iris diaphragm and an iris diaphragm structure, in which each blade is overlapped to form an adjustable clear aperture when the blade moves, thereby reducing the height occupied by the blade structure.

An object of the present invention is to provide a variable aperture blade arrangement and a variable aperture structure, in which a movable end of a long blade is arranged on a movable portion, a fixed end of the long blade is arranged on a fixed portion, and the fixed end on the fixed portion is used as a rotation center, so as to drive the movable end of the blade to rotate correspondingly to form an adjustable light-transmitting hole.

An object of the present invention is to provide a blade arrangement method of an iris diaphragm and an iris diaphragm structure, in which a driving structure is provided between a fixed base and a movable portion by accommodating a movable portion carrier inside the fixed base, so as to reduce the height of the entire iris diaphragm structure.

An object of the present invention is to provide a blade arrangement mode of an iris and an iris structure, in which a portion of light reflected by a blade is absorbed by a light shielding sheet by arranging the light shielding sheet on an upper surface of a movable portion, so as to reduce a risk of forming parasitic light in the iris.

An object of the present invention is to provide a blade arrangement method of an iris diaphragm and an iris diaphragm structure, in which a corresponding metal injection molding is provided in a movable portion and a fixed base of the iris diaphragm, so that the strength of the structure itself is enhanced and the metal injection molding can be used for conducting a line.

An object of the present invention is to provide a blade arrangement method of an iris diaphragm and an iris diaphragm structure, in which a ball groove is provided between a movable part carrier and a fixed base, and a ball is used to assist movement of a movable part relative to the fixed base, so that friction between the movable part carrier and the fixed base is reduced, and a requirement for driving force of the iris diaphragm is reduced.

An object of the present invention is to provide a blade arrangement mode of an iris diaphragm and an iris diaphragm structure, which are capable of ensuring current supply for the operation of the iris diaphragm by arranging a circuit board on the lower surface of a fixed base and reserving a soldering pin conducted with a module structure on the circuit board.

Other advantages and features of the present invention will become more fully apparent from the following detailed description, and may be learned by the practice of the invention as set forth hereinafter.

The invention provides a variable aperture, comprising:

The rotary blade assembly comprises a plurality of long blades which are mutually overlapped to form an adjustable light-passing hole, wherein each long blade comprises a fixed end and a movable end, and the fixed end and the movable end are respectively positioned at two sides of the light-passing hole;

a drive assembly;

The rotary blade assembly rotates under the driving action of the driving assembly, and the aperture size of the light passing hole changes.

According to an embodiment of the present invention, the fixed end of the long blade has a positioning hole, the movable end has a movable hole, and the positioning hole and the movable hole are separately disposed at two ends of the long blade.

According to an embodiment of the present invention, the long side of the movable hole extends toward the optical axis direction to form a certain length, and the length of the movable hole forms a movable stroke.

According to an embodiment of the present invention, a distance between the positioning hole and a center of the movable hole is d1, and a distance between the fixed end and the movable end is d2, wherein 1> d1/d2>2/3.

According to an embodiment of the invention, the aperture of the light-transmitting hole is h, wherein 1/3>h/d1>1/5.

According to an embodiment of the present invention, a line connecting the positioning hole and the center of the movable hole passes through the light passing hole.

According to an embodiment of the present invention, a connecting line between the positioning hole corresponding to each long blade and the center of the movable hole forms a polygon, and the polygon is always located in the light-passing hole during the change process of the light-passing hole.

According to an embodiment of the invention, the centers of the movable holes of the long blades are coupled to each other to form an inner regular polygon, and the inner regular polygon covers the light-passing hole.

According to an embodiment of the present invention, the long blades take the positioning holes of the fixed ends as rotation centers, which when coupled to each other form an outer regular polygon, the number of sides of which corresponds to the number of the long blades.

According to an embodiment of the invention, at least two of said long blades are arranged in the same plane.

According to a seventh aspect of the present invention:

Other advantages and features of the present invention will become more fully apparent from the following detailed description, and may be learned by the practice of the invention as set forth hereinafter. The invention provides a variable aperture, comprising:

The rotary blade assembly comprises a plurality of long blades which are mutually overlapped to form an adjustable light transmission hole, wherein each long blade comprises a fixed end, a movable end and an avoidance groove;

the movable end of the long blade is movably connected with the movable carrier;

The fixed end of the long blade is connected with the fixed base;

a drive assembly;

The movable ends of at least one adjacent long blade of the long blades are arranged in the avoidance grooves of the long blades, the movable carrier rotates under the driving action of the driving assembly to drive the long blades to change in position, and the aperture size of the light passing hole changes.

According to an embodiment of the present invention, the fixed end has a positioning hole, the movable end has a movable hole, the positioning hole and the movable hole are separately disposed at two ends of the long blade, a long side of the movable hole extends toward the optical axis direction to form a certain length, and the length of the movable hole forms a movable stroke.

According to an embodiment of the present invention, the movable carrier includes at least one driving rod, the number of the driving rods is identical to the number of the long blades, and each driving rod is connected to the movable end of the long blade, and is disposed in the movable hole of each long blade and moves within the movable stroke defined by the movable hole.

According to an embodiment of the invention, the driving rod of at least one adjacent stacked long blade is arranged in the avoidance groove of the adjacent long blade.

According to an embodiment of the present invention, the long blade includes an outer side far from the optical axis and an inner side near to the optical axis, the outer side is convex, and the inner side is concave.

According to an embodiment of the present invention, the avoidance groove is disposed at an outer side of the long blade, and the avoidance groove is disposed to be recessed inward along the outer side to avoid a certain space.

According to an embodiment of the present invention, the length of the movable hole of the adjacent blade of the long blade is less than or equal to the maximum diameter of the avoidance groove on the long blade.

According to an embodiment of the present invention, the number of the long blades is at least five, the long blades are distributed in a ring shape, the light-passing holes form a polygon, and the number of sides of the polygon corresponds to the number of the long blades.

According to an embodiment of the present invention, the inner side surface of the long blade has a curve with a certain radian, and the polygonal light-passing hole forms an approximately circular structure.

According to an embodiment of the invention, each of the long blades, except for the adjacent blades which are axially symmetrically arranged, has a minimum stacking gap between the two blades, and has a relatively larger stacking gap with the other blades or is spaced by at least two blades.

Drawings

Fig. 1A is an overall schematic diagram of an iris according to embodiment a of the present invention.

Fig. 1B is an exploded schematic view of the iris diaphragm according to embodiment a of the present invention.

Fig. 2A is a schematic view of the iris diaphragm according to embodiment a of the present invention in a state of a large diaphragm.

Fig. 2B is a schematic view of the iris diaphragm according to embodiment a of the present invention in a state of a small diaphragm.

Fig. 2C is a schematic view of the diaphragm blade of the iris according to embodiment a of the present invention.

Fig. 3 is a schematic structural view of a movable carrier of the iris diaphragm according to embodiment a of the present invention.

Fig. 4 is a schematic structural view of another view angle of the movable carrier of the iris diaphragm according to the aspect a of the present invention.

Fig. 5 is a schematic structural view of a fixed base of the iris diaphragm according to embodiment a of the present invention.

Fig. 6 is a schematic view of an installation state of the iris section structure according to the aspect a of the present invention.

Fig. 7A to 7C are schematic structural views of the iris section structure according to the aspect a of the present invention.

Fig. 8 is a schematic structural view of a magnetic conductive sheet of the iris according to embodiment a of the present invention.

Fig. 9 is a schematic structural view of an electric connection assembly and a reset assembly of the iris diaphragm according to aspect a of the present invention.

Fig. 10 is a schematic structural view of the resetting assembly of the iris diaphragm and the sensing magnet mounting position according to the aspect a-1 of the present invention.

FIG. 10A is a partial cross-sectional view of the electrical connection assembly of the iris diaphragm according to aspect A-2 of the invention;

fig. 11 is a schematic view of the electrical connection assembly of the iris diaphragm according to aspect a of the present invention when it is turned on.

Fig. 12 is a schematic view of a resetting assembly of the iris diaphragm according to the embodiment a-1 of the present invention.

FIG. 12A is a schematic view of a magnetic attraction assembly of the iris diaphragm according to aspect A-2 of the invention.

Fig. 13 is a schematic structural view of another alternative embodiment of a resetting assembly of the iris diaphragm according to the embodiment a of the present invention.

Fig. 14 is a schematic view of the installation position of the resetting assembly of the iris diaphragm according to the aspect a-1 of the present invention.

Fig. 14A and 14B are schematic structural views of a magnetic assembly of the iris diaphragm according to the embodiment a-2 of the present invention.

Fig. 15 is a cross-sectional view of the base of the iris diaphragm according to embodiment a-1 of the present invention.

Fig. 16 is an overall schematic diagram of an image capturing module according to embodiment a of the present invention.

FIG. 17 is a schematic diagram of an embodiment of an iris diaphragm optical lens according to aspect B of the present application;

FIG. 18 is an exploded view of one embodiment of an iris diaphragm optical lens according to aspect B of the present application;

FIG. 19 is a cross-sectional view of one embodiment of an iris diaphragm optical lens of embodiment B;

FIG. 20 is an enlarged partial view of FIG. 19;

FIG. 21 is a simplified schematic diagram of an embodiment of an iris diaphragm optical lens according to aspect B of the application;

FIG. 22 is a schematic diagram of another embodiment of an iris diaphragm optical lens according to the present application;

FIG. 23 is an exploded view of another embodiment of an iris diaphragm optical lens according to aspect B of the present application;

FIG. 24 is a cross-sectional view of another embodiment of an iris diaphragm optical lens in accordance with aspect B of the present application;

FIG. 25 is a schematic diagram of an embodiment of a camera module according to aspect B of the present application;

FIG. 26 is an exploded view of one embodiment of a camera module according to aspect B of the present application;

FIG. 27 is a schematic view of an embodiment of an iris diaphragm device according to aspect B of the application;

FIG. 28 is an exploded view of one embodiment of the iris diaphragm device of embodiment B of the application;

FIG. 29 is an exploded view of one embodiment of the iris diaphragm device of embodiment B of the application;

FIG. 30 is a top view of one embodiment of an iris diaphragm device of embodiment B of the application;

FIG. 31 is a schematic view in section A-A of FIG. 30;

FIG. 32 is a schematic view in section B-B of FIG. 30;

FIG. 33 is a bottom view of one embodiment of an iris diaphragm device of embodiment B of the application;

FIG. 34 is a schematic view in section C-C of FIG. 13;

FIG. 35 is a schematic view of an embodiment of the iris diaphragm device of embodiment B of the application, wherein the locking tab is not shown;

FIG. 36 is a schematic view of an embodiment of the iris diaphragm device of embodiment B of the application, wherein the locking tabs, blades are not shown;

FIG. 37 is a schematic view of an embodiment of the iris diaphragm device of embodiment B of the application, in which the locking tabs, blades and driving members are not shown;

FIG. 38 is a schematic view of an embodiment of a driving member of the iris diaphragm device of embodiment B of the application;

FIG. 39 is a schematic diagram of another embodiment of an iris diaphragm device according to aspect B of the application;

FIG. 40 is an exploded view of another embodiment of the iris diaphragm device of embodiment B of the application;

FIG. 41 is a schematic view of the iris diaphragm with long blade configuration in accordance with embodiment C of the application;

FIG. 42 is an overall schematic view of the iris diaphragm of embodiment C of the application with a housing;

FIG. 43 is an exploded view of the various components of the iris diaphragm structure of embodiment C of the application;

FIG. 44 is an exploded view showing an angle between a movable carrier and a fixed base in embodiment C of the present application;

FIG. 45 is an exploded view showing another angle between the movable carrier and the fixed base in embodiment C of the present application;

FIG. 46 is a schematic view showing a structure of the combination of the movable carrier and the fixed base in the embodiment C of the present application;

FIG. 47 is a schematic view showing the structure of a rotary blade according to embodiment C of the present application;

FIG. 48 is a schematic view showing the shape of a single blade constituting a rotary blade in embodiment C of the present application;

FIG. 49 is a schematic cross-sectional view showing the whole structure of the iris diaphragm in embodiment C of the application;

FIG. 50 is a schematic diagram of a circuit structure and a magnetic sheet of the iris diaphragm in the embodiment C of the application;

FIG. 51 is an exploded view of the drive structure and the movable carrier and stationary base of embodiment C of the present application;

fig. 52 is a schematic structural view of a metal injection molding of the movable carrier and the fixed base in embodiment C of the present application.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Scheme a: referring to FIGS. 1-16 and reference numerals therefor

The application provides a variable aperture device and an image pickup module using the same, wherein the size of the light incoming quantity of the image pickup module is controlled by adjusting the size of the aperture of the variable aperture device, so that the image pickup module has different depth of field, and long-range shooting or portrait shooting can be realized. The iris diaphragm device drives the diaphragm blades to rotate through a motor to change the size of the diaphragm aperture, and the conventional iris diaphragm device limits the structure of the motor due to size and structure limitations, so that the motor cannot provide a larger driving force. In the present application, therefore, a novel structure of the iris diaphragm device is provided to match the motor structure so that the motor can generate a larger driving force, and the iris diaphragm device can realize a larger angle of rotation.

Exemplary variable aperture device

Referring to fig. 1A to 14B of drawings of the present specification, an iris diaphragm device according to an embodiment of the present application is illustrated. In the present application, the iris device is used for an image pickup module having an optical axis L, the iris device has an axis O passing through the center, and the axis O of the iris device coincides with the optical axis L of the image pickup module.

As shown in fig. 1A and 1B, the iris diaphragm includes a base 10, a driving assembly 20 disposed on the base 10, a blade assembly 30, and an electrical connection assembly 40, wherein the driving assembly 20 and the blade assembly 30 are drivingly connected, the blade assembly 30 is movably disposed on the base 10, and the driving assembly 20 drives the blade assembly 30 to move, so that a light-transmitting hole 100 with a variable aperture is formed by the blade assembly 30. The electrical connection assembly 40 is disposed on the base 10, and the electrical connection assembly 40 is electrically connected to the driving assembly 20, the driving assembly 20 is electrically connected through the electrical connection assembly 40, and the electrical connection assembly 40 provides the driving assembly 20 with the electric energy required for operation.

The electrical connection assembly 40 is embedded in the base 10, and the electrical connection assembly 40 is fixed by the base 10, which is favorable for the structural stability and the electrical connection stability of the electrical connection assembly 40, and can reduce the possibility of unstable electrical connection between the electrical connection assembly 40 and the driving assembly 20 to a certain extent. In addition, the electric connection assembly 40 is embedded in the base 10, wherein a part of the mechanism of the electric connection assembly 40 is exposed out of the base 10, so as to electrically connect the driving assembly 20, which can reduce the height of the iris to a certain extent, and is beneficial to miniaturization and light weight of the iris structure.

The iris diaphragm further comprises a housing 14, wherein the housing 14 is disposed above the base 10, and a space is formed by the housing 14 and the base 10, which is adapted to house and protect the driving assembly 20 and the blade assembly 30. The housing 14, the driving assembly 20, the blade assembly 30, and the base 10 are sequentially disposed in a height direction, wherein the driving assembly 20 drives the blade assembly 30 to rotate around an optical axis to change a size of an aperture of the iris apparatus by rotation of the blade assembly 30. In the present application, the diaphragm aperture refers to an approximately circular through hole surrounded by the blade assembly 30. The height direction is the incident direction of the light to the emergent direction of the light.

In a specific example of the present application, the housing 14 is used to cover and protect the upper surface and/or side surfaces of the iris apparatus, and the housing includes a housing body having a light-passing hole in the center through which light can enter the interior of the iris apparatus. In another specific example of the present application, the housing 14 further includes a housing side integrally connected around the housing body of the housing. In this way, the individual elements in the iris apparatus can be protected, and also be used to prevent dust, dirt, etc. from entering the interior of the iris apparatus.

The driving unit 20 is disposed on the base 10 and electrically connected to the electrical connection unit 40, and preferably, in the preferred embodiment of the present invention, the driving unit 20 is a driving mechanism composed of a magnet and a coil. It will be appreciated that in this preferred embodiment of the invention, the specific construction and implementation of the drive assembly 20 is provided herein by way of example only and not by way of limitation. Thus, in other alternative embodiments of the invention, the drive assembly 20 may also be implemented as other travel drive mechanisms, such as a motor.

The driving assembly 20 drives the blade assembly 30 to rotate along the optical axis relative to the base 10, wherein the blade assembly 30 is driven by the driving assembly 20 to rotate around a specific direction, so as to adjust the size of the aperture.

The driving assembly 20 includes at least two coil groups 21 and at least two magnet groups 22, wherein the at least two coil groups 21 and the at least two magnet groups 22 are disposed opposite to each other, the at least two coil groups 21 of the driving assembly 20 are electrically connected to the electrical connection assembly 40, and the at least two coil groups 21 are connected in series through the electrical connection assembly 40.

The vane assembly 30 includes a movable carrier 31 and a plurality of vane units 32 provided to the movable carrier 31, wherein the plurality of vane units 32 are movably provided to the movable carrier 31, and the plurality of vane units 32 are rotated in a specific direction by the movable carrier 32, thereby adjusting the aperture size of the through hole formed by the plurality of vane units 32.

In this preferred embodiment of the present invention, the at least two coil groups 21 are provided to one of the movable carrier 31 or the base 10, wherein the at least two magnet groups 22 are provided to the other of the movable carrier 31 or the base 10. The at least two coil sets 21 are disposed opposite to the at least two magnet sets 22, and when the at least two coils 21 are energized, a driving force is generated between the at least two magnet sets 22 and the at least two coil sets 21 to drive the movable carrier 31 to rotate around the optical axis, so as to drive the blade assembly 32 to rotate to change the aperture size.

Specifically, in one specific example of the present invention, the at least two coil groups 21 of the driving assembly 20 are disposed on the base 10, the at least two magnet groups 22 of the driving assembly 20 are disposed on the movable carrier 31 of the blade assembly 30, and the at least two coil groups 21 are in one-to-one correspondence with the at least two magnet groups 22. In another alternative embodiment of the present invention, the at least two coil groups 21 of the driving assembly 20 are disposed on the movable carrier 31 of the blade assembly 30, the at least two magnet groups 22 of the driving assembly 20 are disposed on the base 10, and the at least two coil groups 21 are in one-to-one correspondence with the at least two magnet groups 22.

Fig. 2A shows a schematic view of an iris apparatus of an embodiment of the present application in a maximum aperture state, fig. 2B shows a schematic view of an iris apparatus of an embodiment of the present application in a minimum aperture state, and fig. 2C shows a schematic view of an aperture blade of an embodiment of the present application.

As shown in fig. 2A to 2C, in the embodiment of the present application, the number of the blade units 32 of the blade assembly 30 is at least three, that is, at least three of the blade units are distributed in a ring shape, and at least three of the blade units 32 are disposed around the optical axis. There is overlap between adjacent vane units such that a vane through hole for light to pass through is formed between at least three vane units 32. Preferably, in a specific example of the present application, the number of blade units is 4.

In detail, in the embodiment of the present application, one of the plurality of vane units 32 of the vane assembly 30 is located above or below a previous (counterclockwise) vane unit 32. Specifically, in a specific example of the present application, one of the at least three blade units 32 is located above the preceding blade unit 32 and the following blade unit 32, or, one of the at least three blade units 32 is located below the preceding blade unit 32 and the following blade unit 32, that is, the at least three blade units 32 are alternately located in the same direction. In another specific example of the present application, one of the at least three blade units 32 is located above the previous blade unit 32 and below the next blade unit 32. In another specific example of the present application, one of the at least three blade units 32 is located below the previous blade unit 32 and above the next blade unit 32, i.e., the at least three blade units 32 may be disposed overlapping in the same direction.

It should be noted that, in the embodiment of the present application, at least three blade units 32 are alternately arranged along the same direction to form an approximately circular aperture, that is, when at least three blade units 32 are closed, a polygonal opening is avoided between inner sidewalls of two adjacent blade units 32, so that stray light is prevented from entering the iris diaphragm device from the polygonal opening. Further, in an embodiment of the present application, the number of the vane units 32 is odd, so that the polygonal opening can be avoided, and a larger opening can be formed by a small number of the vane units 32; in another embodiment of the present application, the number of the blade units 32 is an even number, and the blade units 32 are symmetrically arranged along the center of the aperture to avoid the formation of the above-mentioned variable shape opening.

As shown in fig. 2C, in the embodiment of the present application, the blade unit 32 includes a blade body 321 and a blade connection end 322, the blade body 321 is movably disposed on the base 10 through the blade connection end 322, and the blade body 321 is movably connected to the movable carrier 31. The blade body 321 is provided with a blade track, and the blade unit 32 can be driven by the driving assembly to rotate along the direction of the blade track, so that at least three blade units 32 can cooperatively rotate relatively to adjust the size of the aperture. The blade connecting end 322 is provided with a positioning hole, the blade unit 32 is movably arranged on the base driven by the aperture through the positioning hole, and the blade unit 32 can rotate relative to the base under the drive of the driving assembly.

Fig. 2A and 2B are schematic views showing the blade assembly 30 in two states of a maximum aperture and a minimum aperture, respectively, when the blade assembly 30 is switched from a large aperture state to a small aperture state, the blade body 321 of the blade unit 32 is rotated to be moved in a direction approaching the center of the blade through hole, and the aperture of the blade through hole of the blade assembly 30 becomes smaller; when the blade assembly 30 is switched from the small aperture state to the large aperture state, the blade body 321 of the blade unit 32 is rotated to move in a direction away from the center of the blade through hole, and the aperture of the blade through hole of the blade assembly 30 becomes large.

Fig. 3 shows a top view of the movable carrier according to an embodiment of the present application, and fig. 4 shows a bottom view of the movable carrier according to an embodiment of the present application. As shown in fig. 1, 3 to 4, the movable carrier 31 is movably disposed above the base 10, wherein the vane unit 32 is movably disposed on the movable carrier 31. The movable carrier 31 can rotate around the optical axis relative to the base 10 under the driving of the driving assembly 20, so as to drive the vane unit 32 at the upper part to rotate, thereby realizing the change of the aperture size of the vane through hole of the vane unit 32.

The movable carrier 31 includes a carrier body 311 and a carrier extension 312 integrally extending outwardly from the carrier body. The carrier body 311 has a hollow structure, and a center portion of the carrier body 311 has a through hole for the movable carrier 31 for passing light. The carrier body 311 includes a moving protrusion 3111, wherein the moving protrusion 3111 extends upward from the top surface of the carrier body 311, i.e., the moving protrusion 3111 is higher than the top surface of the carrier body 311. Preferably, in the preferred embodiment of the present invention, the number of the moving protrusions 3111 is at least 3, the moving protrusions 3111 may form a plane, and the blade unit 32 may be smoothly supported to avoid tilting of the blade unit 32 during opening and closing, thereby affecting the imaging effect, and the moving protrusions 3111 may be disposed along the circumferential direction of the carrier body 311. Further, the moving protrusion 3111 extends upward into a blade track of the blade unit 32, and when the movable carrier 31 rotates, the moving protrusion rotates the blade unit 32, and the rotation angle of the blade unit 32 is limited by the blade track.

As shown in fig. 3 and 4, in the embodiment of the present application, the carrier extension 312 integrally extends outward from the carrier body 311, in other words, in the preferred embodiment of the present application, the carrier extension 312 is an outwardly extending boss disposed on a sidewall of the carrier body 311, the number of the carrier extensions 312 is at least two, and a first limiting groove 3120 is formed between the two carrier extensions 312, and the first limiting groove 3120 is used to cooperate with the base to limit the moving stroke of the iris diaphragm device. In the present application, inwardly refers to a side toward the optical axis and outwardly refers to a side away from the optical axis.

Specifically, the carrier extension 312 includes a first carrier extension 3121, a second carrier extension 3122, a third carrier extension 3123, and a fourth carrier extension 3124, wherein the first carrier extension 3121 and the third carrier extension 3123 are symmetrically disposed about an optical axis, and the second carrier extension 3122 and the fourth carrier extension 3124 are symmetrically disposed about the optical axis. In a specific example of the present application, the carrier extension 312 is disposed in the order of the first carrier extension 3121, the second carrier extension 3122, the third carrier extension 3123, and the fourth carrier extension 3124 in the clockwise direction.

It should be noted that, in the embodiment of the present application, the length of the first carrier extension 3121 extending outward is equal to the length of the third carrier extension 3123 extending outward, and the length of the second carrier extension 3122 extending outward is equal to the length of the fourth carrier extension 3124 extending outward, such that the movable carrier 31 is arranged in a symmetrical structure around the optical axis to avoid tilting of the movable carrier 31.

It will be appreciated that in an embodiment of the present application, the carrier extension 312 of the movable carrier 31 further includes a fifth carrier extension 312 and a sixth carrier extension 312 (not shown), the fifth carrier extension 312 and the sixth carrier extension 312 being symmetrically disposed about the optical axis.

Further, in the embodiment of the present application, the top surface of the movable carrier 31 carries the blade unit 32, wherein the at least two magnet sets 22 of the driving assembly 20 are disposed on the bottom surface of the movable carrier 31. The first, second, third and fourth carrier extensions 3121, 3122, 3123 and 3124 of the movable carrier 31 have first, second, third and fourth seating grooves 31210, 31220, 31230 and 31240, respectively, wherein the at least two magnet sets 22 or the at least two coil sets 21 of the driving assembly 20 are seated within the first, second, third and fourth seating grooves 31210, 31220, 31230 and 31240 of the bottom surface of the movable carrier 31 to avoid increasing the height of the iris apparatus. It should be noted that the shapes of the first placement groove 31210, the second placement groove 31220, the third placement groove 31230, and the fourth placement groove 31240 are adapted to the shapes of the at least two magnet groups 21 or the at least two coil groups 22.

Fig. 5 shows a top view of the base of one embodiment of the application, and fig. 6 shows a combined schematic of the movable carrier 31 and the base of one embodiment of the application. As shown in fig. 1 and fig. 5 to fig. 6, in the embodiment of the present application, the base is disposed below the movable carrier 31, the driving assembly 20 is located between the base 10 and the movable carrier 31, the driving assembly 20 can drive the movable carrier 31 to rotate relative to the base 10, i.e. the movable carrier 31 corresponds to a mover, and the base is a stator.

The base 10 includes a base body 11 and a base sidewall 12 extending upward from an outer edge of the base body 11, wherein the base body 11 has a ring-shaped structure, and a center portion of the base body 11 has a base through hole for allowing incident light to pass through.

In the embodiment of the present application, the base 10 further includes a plurality of limit stops 13, wherein the limit stops 13 are formed by extending inward from the base sidewall 12. The limit stop 13 of the base 10 corresponds to the first limit groove 3120 of the movable carrier 31, the limit stop 13 may be disposed in the first limit groove 3120 along a height direction, and when the movable carrier 31 rotates, the limit stop 13 of the base 10 collides with sidewalls of two extended portions forming the first limit groove 3120 to limit a rotation angle of the movable carrier 31. In a specific example of the present application, the number of the carrier extensions 312 is four, and the number of the limit stops 13 corresponding to the four first limit grooves 3120 is also four. That is to say the number of blade units 32 and the number of carrier extensions 312 are the same as the number of limit stops 13. Of course, it is understood that, on the base, a second limit groove 130 is formed between two limit stops 13, and the carrier extension 312 is disposed between two adjacent limit stops 13 and is disposed in the second limit groove 130, so that when the movable carrier 31 rotates, the carrier extension 312 of the movable carrier 31 collides with a side edge of the limit stop 13 to limit the rotation angle of the movable carrier 31.

Specifically, in the embodiment of the present application, the limit stop 13 includes a first limit stop 131, a second limit stop 132, a third limit stop 133, and a fourth limit stop 134, wherein the first limit stop 131 and the second limit stop 132 are disposed adjacent to each other, and the first carrier extension 3121 is disposed within the second limit groove 130 formed by the first limit stop 131 and the second limit stop 132; the second limit stop 132 and the third limit stop 133 are disposed adjacent to each other, and the second carrier extension 3122 is disposed within the second limit groove 130 formed by the second limit stop 132 and the third limit stop 133; the third limit stop 133 and the fourth limit stop 134 are disposed adjacent to each other, and the third carrier extension 3123 is disposed within the second limit groove 130 formed by the third limit stop 133 and the fourth limit stop 134; the fourth limit stop 134 is disposed adjacent to the first limit stop 131, and the fourth carrier extension 3124 is disposed within the second limit groove 130 formed by the fourth limit stop 134 and the first limit stop 131. Further, in another specific example of the present application, the limit stop 13 further includes a fifth limit stop and a sixth limit stop (not shown), and of course, in the present application, the plurality of limit stops 13 and the plurality of carrier extensions 312 may be arranged in other order, which is not limited by the present application.

More specifically, in the embodiment of the present application, the limit stop 13 is provided with a positioning protrusion, which extends upward from the top surface of the limit stop 13, and the positioning protrusion corresponds to the positioning hole of the vane unit 32, and when the movable carrier 31 rotates, the vane unit 32 can rotate around the positioning protrusion of the base under the driving of the movable carrier 31, so as to avoid the vane unit 32 from separating from the iris device during the rotation.

Further, in the embodiment of the present application, the mount body 11 is provided with mounting grooves 110 at both sides opposite to each other about the optical axis, and the at least two coil groups 21 or the at least two magnet groups 22 are disposed in the mounting grooves 110, wherein the mounting grooves 110 are positioned to correspond to the first seating groove 31210 and the third seating groove 31230 in the height direction, or the mounting grooves 110 are positioned to correspond to the second seating groove 31220 and the fourth seating groove 31240 in the height direction, so that the at least two coil groups 21 and the at least two magnet groups 22 are disposed opposite to each other.

Fig. 7 shows a schematic diagram of a drive assembly according to an embodiment of the application. The movable carrier 31 is driven by the driving assembly 20 to rotate, so as to drive at least three blade units 32 to rotate, thereby realizing the adjustment of the aperture size of the blade through hole, and further realizing the continuous adjustment or the step adjustment of the aperture driving device. In the present application, the driving assembly 20 may be embodied as a VCM motor, wherein the VCM motor is simple in structure and more mature in technology. Therefore, the application designs a VCM motor structure to increase the magnetic thrust generated by the driving component, thereby realizing the large-angle rotation of the iris diaphragm device.

As shown in fig. 1 and fig. 7A to fig. 7B, in the embodiment of the present application, the driving component 20 is disposed between the movable carrier 31 and the base 10 along the height direction, in a specific example of the present application, the at least two magnet sets 21 are symmetrically disposed on the base 10 around the optical axis, the at least two magnet sets 22 are symmetrically disposed on the movable carrier 31 around the optical axis, the at least two magnet sets 22 are disposed opposite to the at least two coil sets 21, and when the at least two coil sets 21 are energized, a driving force is generated between the at least two magnet sets 22 and the at least two coil sets 21, so that the at least two magnet sets 22 drive the movable carrier 31 to rotate around the optical axis, and further drive the blade unit 32 to rotate to change the aperture size. In another specific example of the present application, the positions of the at least two coil sets 21 and the at least two magnet sets 22 are exchanged, that is, the at least two coil sets 21 are symmetrically arranged on the movable carrier 31 around the optical axis, and the at least two magnet sets 22 are symmetrically arranged on the base 10 around the optical axis, which is not limited in the present application. In the case where the at least two magnet groups 22 are symmetrically arranged around the optical axis, after the at least two coil groups 21 are energized, electromagnetic forces generated between the at least two magnet groups 22 and the at least two coil groups 21 all face a tangential direction of the rotation direction of the movable carrier 31, and the movable carrier 31 is driven by the electromagnetic forces to rotate around the optical axis.

It should be noted that the larger the effective area between the at least two coil sets 21 and the at least two magnet sets 22, the larger the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22. The at least two coil sets 21 include a first coil 211 and a second coil 212, the first coil 211 and the second coil 212 are symmetrically disposed around the optical axis, each of the first coil 211 and the second coil 212 includes at least two sub-coils, in a specific example of the present application, the first coil 211 includes a first sub-coil 2111 and a second sub-coil 2112, the second coil 212 includes a third sub-coil 2121 and a fourth sub-coil 2122, the first sub-coil 2111 and the second sub-coil 2112 are disposed adjacent to each other in the horizontal direction, and the third sub-coil 2121 and the fourth sub-coil 2122 are disposed adjacent to each other in the horizontal direction. It is noted that the first sub-coil 2111, the second sub-coil 2112, the third sub-coil 2121 and the fourth sub-coil 2122 are arranged along the circumference of concentric circles.

Corresponding to the at least two coil groups 21, the at least two magnet groups 22 include a first magnet 221 and a second magnet 222, the first magnet 221 and the second magnet 222 are symmetrically disposed around the optical axis, the first magnet 221 and the first coil 211 are disposed opposite to each other in the height direction, and the second magnet 222 and the second coil 212 are disposed opposite to each other in the height direction. After the first coil 211 and the second coil 212 are energized, a first driving force F1 in one direction (clockwise) is generated between the first coil 211 and the first magnet 221, a second driving force F2 in one direction (clockwise) is generated between the second coil 212 and the second magnet 222, the driving forces F1 and F2 are parallel to each other and opposite to each other, and the directions of the driving forces F1 and F2 are tangential to the rotation direction of the movable carrier 31. The movable carrier 31 rotates clockwise or counterclockwise under the action of the driving forces F1 and F2, so as to drive the vane unit 32 to rotate, and further change the size of the vane through hole of the vane unit 32.

As shown in fig. 7C, in a specific example of the present application, the first magnet 221 and the second magnet 222 are symmetrically arranged around the optical axis, and each of the first magnet 221 and the second magnet 222 includes at least two sub-magnets. The first magnet 221 includes a first sub-magnet 2211 and a second sub-magnet 2212, the second magnet 222 includes a third sub-magnet 2221 and a fourth sub-magnet 2222, the first sub-magnet 2211 and the second sub-magnet 2212 are disposed adjacent to each other in the horizontal direction, and the third sub-magnet 2221 and the fourth sub-magnet 2222 are disposed adjacent to each other in the horizontal direction. It should be noted that the first sub-magnet 2211, the second sub-magnet 2212, the third sub-magnet 2221 and the fourth sub-magnet 2222 are arranged along the circumference of concentric circles. The first sub-magnet 2211 is disposed opposite to the first sub-coil 2111 in the height direction, the second sub-magnet 2212 is disposed opposite to the second sub-coil 2112 in the height direction, the third sub-magnet 2221 is disposed opposite to the third sub-coil 2121 in the height direction, and the fourth sub-magnet 2222 is disposed opposite to the fourth sub-coil in the height direction. The first sub-magnet 2211 and the second sub-magnet 2212 have opposite magnetic poles, i.e., the first sub-magnet 2211 has an S pole (or an N pole), and the second sub-magnet 2212 has an N pole (or an S pole); the third sub-magnet 2221 and the fourth sub-magnet 2222 have opposite poles, that is, the third sub-magnet 2221 has an S-pole (or an N-pole), and the fourth sub-magnet 2222 has an N-pole (or an S-pole).

It should be noted that, the greater the number of straight sections of the magnetic induction line passing through the at least two magnet sets 22 in the at least two coil sets 21, the greater the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22, wherein the straight sections of the magnetic induction line passing through the at least two magnet sets 22 in the at least two coil sets 21 are straight sections of the at least two coil sets 21 extending along the radial direction of the iris device. The first sub-magnet 2211 covers at least one straight-sided section of the first sub-coil 2111, the second sub-magnet 2212 covers at least one straight-sided section of the second sub-coil 2112, the third sub-magnet 2221 covers at least one straight-sided section of the third sub-coil 2121, and the fourth sub-magnet 2222 covers at least one straight-sided section of the fourth sub-coil 2122. In a specific example of the present application, the projection area of the first sub-magnet 2211 along the optical axis direction is larger than the projection area of the first sub-coil 2111 along the optical axis direction, that is, the first sub-magnet 2211 covers two straight-side sections of the first sub-coil 2111; the projection area of the second sub-magnet 2212 along the optical axis direction is larger than the projection area of the second sub-coil 2112 along the optical axis direction, namely, the second sub-magnet 2212 covers two straight-edge sections of the second sub-coil 2112; the projection area of the third sub-magnet 2221 along the optical axis direction is larger than the projection area of the third sub-coil 2121 along the optical axis direction, that is, the third sub-magnet 2221 covers two straight edge sections of the third sub-coil 2121; the projection area of the fourth sub-magnet 2222 along the optical axis direction is larger than the projection area of the fourth sub-coil 2122 along the optical axis direction, i.e., the fourth sub-magnet 2222 covers two straight-edge sections of the fourth sub-coil 2122.

As shown in fig. 7B, in a specific example of the present application, the first magnet 221 includes a first sub-magnet 2211, a second sub-magnet 2212, and a third sub-magnet 2213, and the second magnet 222 includes a fourth sub-magnet 2221, a fifth sub-magnet 2222, and a sixth sub-magnet 2223. The first, second, and third sub-magnets 2211, 2212, and 2213 are disposed adjacent to each other in the horizontal direction, and the fourth, fifth, and sixth sub-magnets 2221, 2222, and 2223 are disposed adjacent to each other in the horizontal direction. It is noted that the first sub-magnet 2211, the second sub-magnet 2212, the third sub-magnet 2213, the fourth sub-magnet 2221, the fifth sub-magnet 2222 and the sixth sub-magnet 2223 are arranged along the circumference of concentric circles. The first, second, and third sub-magnets 2211, 2212, 2213 are disposed to face the first and second sub-coils 2111, 2112 in the height direction, and the fourth, fifth, and sixth sub-magnets 2221, 2222, 2223 are disposed to face the third and fourth sub-coils 2121, 2122 in the height direction. When the second sub-magnet 2212 is arranged between the first sub-magnet 2211 and the third sub-magnet 2213, the first sub-magnet 2211 and the second sub-magnet 2212 have opposite magnetic poles, the third sub-magnet 2213 and the second magnet 222 have opposite magnetic poles, i.e. the first sub-magnet 2211 has an S pole (or an N pole), the second sub-magnet 2212 has an N pole (or an S pole), and the third sub-magnet 2213 has an S pole (or an N pole); when the fifth sub-magnet 2222 is arranged between the fourth sub-magnet 2221 and the sixth sub-magnet 2223, the fourth sub-magnet 2221 and the fifth sub-magnet 2222 are in opposite poles, and the sixth sub-magnet 2223 and the fifth sub-magnet 2222 are in opposite poles, that is, the fourth sub-magnet 2221 is in the S-pole (or N-pole), the fifth sub-magnet 2222 is in the N-pole (or S-pole), and the sixth sub-magnet 2223 is in the S-pole (or N-pole).

Specifically, in this embodiment of the present application, the first sub-magnet 2211 of the first magnet 221 covers a straight side section of the first sub-coil 2111, the second sub-magnet 2212 covers another straight side section of the first sub-coil 2111 and a straight side section of the second sub-coil 2112, and the third sub-magnet 2213 covers another straight side section of the second sub-coil 2112, so that each of the four straight side sections of the first sub-coil 2111 and the second sub-coil 2112 can pass through the magnetic induction line of the first magnet 221, thereby increasing the magnetic thrust generated between the first magnet 221 and the first coil 211. The fourth sub-magnet 2221 of the second magnet 222 covers a straight side section of the third sub-coil 2121, the fifth sub-magnet 2222 covers another straight side section of the third sub-coil 2121 and a straight side section of the fourth sub-coil 2122, and the sixth sub-magnet 2223 covers another straight side section of the fourth sub-coil 2122, so that the four straight side sections of the third sub-coil 2121 and the fourth sub-coil 2122 can pass through the magnetic induction line of the second magnet 222, and the magnetic thrust generated between the second magnet 222 and the second coil 212 is increased.

It is understood that in other embodiments of the present application, the first magnet 221 and the second magnet 222 may further include a seventh sub-magnet (not shown) and an eighth sub-magnet (not shown), which the present application is not limited to.

As shown in fig. 7A to 7B, in the embodiment of the present application, the first magnet 221 and the second magnet 222 are disposed on the bottom surface of the movable carrier 31 through the first disposition groove 31210 and the third disposition groove 31230 to avoid increasing the height of the iris apparatus. Further, the shapes of the first positioning groove 31210 and the third positioning groove 31230 are adapted to the shapes of the first magnet 221 and the second magnet 222, for example, in a specific example of the present application, the shapes of the first magnet 221 and the second magnet 222 are in a fan-ring structure, and the first positioning groove 31210 and the third positioning groove 31230 are in a fan-ring structure corresponding to each other, so that the first magnet 221 and the second magnet 222 can be positioned in the first positioning groove 31210 and the third positioning groove 31230. The first coil 211 and the second coil 212 are disposed on the top surface of the base 10 through mounting grooves, so that the first coil 211 and the second coil 212 can be disposed opposite to the first magnet 221 and the second magnet 222.

In an embodiment of the present application, the iris diaphragm device further includes a position sensing assembly 50 for detecting the rotational position of the movable carrier 31. The position sensing assembly 50 includes a sensing magnet 51 and a sensing element 52, wherein the sensing magnet 51 and the sensing element 52 are disposed opposite to each other. The sensing magnet 51 is provided to one of the movable carrier 31 and the base 10, and the sensing element 52 is provided to the other of the movable carrier 31 and the base 10. When the movable carrier 31 rotates, the relative positions of the sensing element 52 and the sensing magnet 51 change, and the position of the movable carrier 31 can be determined according to the strength of the magnetic field of the sensing magnet 51 sensed by the sensing element 52, so that the current of the coil can be adjusted to move the movable carrier 31 to a required position. In the present application, the sensing element 52 may be a hall element, a driving IC, or a TMR.

The iris diaphragm device further includes a weight element 60, and the sensing magnet 51 and the weight element 60 are symmetrically disposed around the optical axis. The sensing magnet 51 and the weight element 60 are respectively disposed in the second disposition groove 31220 and the fourth disposition groove 31240 on the back surface of the movable carrier 31, and the disposition manner is such that the sensing magnet 51 and the weight element 60 are symmetrically disposed between the first magnet 221 and the second magnet 222, so as to ensure that the center of gravity of the movable carrier 31 is stable. The sensing element 52 is disposed on the base 10 and between the first coil 211 and the second coil 212, and is disposed opposite to the sensing magnet 51 in the height direction, and the sensing magnet 51 interacts with the sensing element 52 to sense the moving position of the movable carrier 31.

Further, in the embodiment of the present application, the weight element 60 and the sensing magnet 51 have the same weight, so that the center of gravity of the movable carrier 31 is kept stable under the action of the weight element 60 and the sensing magnet 51. Of course, the weight element 60 may have a magnet structure of the same specification as the sensing magnet 51, and the first magnet 221 and the second magnet 222 may have a magnet structure of the same specification.

As shown in fig. 4 and 8, in the embodiment of the present application, the iris further includes a magnetism increasing sheet 70, wherein the magnetism increasing sheet 70 is provided to the movable carrier 31. In a specific example of the present application, the magnetism increasing sheet 70 is integrally formed on the movable carrier 31 by an insert injection molding process; in another specific example of the present application, the magnetism increasing sheet 70 is embedded in the movable carrier 31, to which the present application is not limited. The magnetic increasing sheet 70 is located at a side of the at least two magnet sets 22 away from the at least two coil sets 21, that is, the magnetic increasing sheet 70 is disposed at a back surface of the at least two magnet sets 22 facing the at least two coil sets 21, so that magnetic force lines of the at least two magnet sets 22 are concentrated in a direction facing one side of the at least two coil sets 21, so as to avoid magnetic force overflowing, and further increase magnetic field strength of the driving assembly 20.

Specifically, in the embodiment of the present application, the magnetic increasing sheet 70 includes a sheet main body 71 and a sheet extension end 72, the sheet main body 71 having a through hole at the center, the sheet extension end 72 extending integrally outwardly from the sheet main body 71. The magnetic sheet extension end 72 includes a first extension end 721, a second extension end 722, a third extension end 723, and a fourth extension end 724. The first extension end 721 and the third extension end 723 are symmetrically disposed about the optical axis, and the first extension end 721 and the third extension end 723 extend outwardly by the same dimension, so that the first extension end 721 and the third extension end 723 can cover the first magnet 221 and the second magnet 222, respectively; the second extending end 722 and the fourth extending end 724 are symmetrically disposed about the optical axis, and the second extending end 722 and the fourth extending end 724 extend outwardly by the same dimension, so that the second extending end 722 and the fourth extending end 724 can cover the sensing magnet 51 and the weight element 60, respectively. I.e. the four extension ends of the magnet sheet extension end 72 are arranged symmetrically around the center of the optical axis.

More specifically, in the embodiment of the present application, the second extending end 722 and the fourth extending end 724 have a bending section extending downward, respectively, and the bending section makes the second extending end 722 and the fourth extending end 724 bend downward, that is, the bottom surfaces of the second extending end 722 and the fourth extending end 724 are lower than the bottom surfaces of the first extending end 721 and the third extending end 723, respectively. This is because the at least two magnet sets 22 are disposed opposite to the at least two coil sets 21 along the height direction, the sensing magnet 51 is disposed opposite to the sensing element 52 along the height direction, and a safe distance needs to be kept between the at least two magnet sets 22 and the at least two coil sets 21, so that not only good electromagnetic force can be generated between the at least two magnet sets 22 and the at least two coil sets 21, but also interference between the at least two magnet sets can be avoided; the closer the distance between the sensing magnet 51 and the sensing element 52 is, the better the sensing effect of the sensing element 52 is, and this situation makes the height of the at least two magnet groups 22 higher than the height of the sensing magnet 51, and the weight element 60 is not provided with other elements along the height direction, i.e. the top surfaces of the first magnet 221 and the second magnet 222 are higher than the top surfaces of the sensing magnet 51 and the weight element 60, and the presence of the bending sections of the corresponding magnetism increasing sheet 70 can keep the second extending end 722 and the fourth extending end 724 to cover the top surfaces of the sensing magnet 51 and the weight element 60 all the time.

As shown in fig. 9 and 10, in the embodiment of the present application, the electrical connection assembly 40 is disposed in the base body 11 of the base 10. The electrical connection assembly 40 includes a first conductive sheet 41, a second conductive sheet 42, and a third conductive sheet 43, where the first conductive sheet 41, the second conductive sheet 42, and the third conductive sheet 43 are in a split structure, i.e., the first conductive sheet 41, the second conductive sheet 42, and the third conductive sheet 43 do not contact with each other. In a specific example of the present application, the first conductive sheet 41, the second conductive sheet 42 and the third conductive sheet 43 of the electrical connection assembly 40 are integrally formed on the base 10 through an insert molding process. At least a portion of the first conductive sheet 41, the second conductive sheet 42 and the third conductive sheet 43 are exposed on the upper surface of the base 10, so as to realize the electrical connection between the electrical connection assembly 40 and the at least two coil groups 21.

As shown in fig. 10, in the embodiment of the present application, the iris diaphragm device further includes a conductive substrate 80, the conductive substrate 80 is disposed on the bottom surface of the base 10, and the at least two coil groups 21 are electrically connected to the conductive substrate 80 through the electrical connection assembly 40. The sensing element 52 is directly disposed on the conductive substrate 80 through the opening of the base 10, and is electrically connected to the conductive substrate 80 for conducting a circuit. Further, the conductive substrate 80 may extend outward to form a flexible board, and pin pins are disposed on the flexible board to facilitate the conduction between the iris diaphragm device and other components in the camera module. Of course, it is understood that the conductive substrate 80 may be directly connected to the motherboard of the electronic component, which is not limited by the present application.

Further, as shown in fig. 11, in the embodiment of the present application, an electrical connection assembly 40 is electrically connected to the at least two coil sets 21, and the coils of the at least two coil sets 21 are connected in series through the electrical connection assembly 40, so as to achieve the electrical conduction of the at least two coil sets 21. The current in the conductive substrate 80 flows through the first conductive sheet 41, the first sub-coil 2111, the second sub-coil 2112, the second conductive sheet 42, the third sub-coil 2121, the fourth sub-coil 2122, and the third conductive sheet 43, respectively, in the iris diaphragm device. The first conductive sheet 41 and the third conductive sheet 43 are electrically connected to the conductive substrate 80 to enable inflow and outflow of current.

Specifically, in the embodiment of the present application, the first conductive sheet 41 has a first conductive end 411 and a second conductive end 412 integrally extending from the first conductive end 411, and the first conductive end 411 and the second conductive end 412 are disposed at two ends of the first conductive sheet 41. The first conductive end 411 is at least partially exposed on the upper surface of the base 10, so as to be electrically connected with the first sub-coil 2111; the second conductive end 412 is bent downward from the plane of the first conductive end 411 to form a recess, so as to be electrically connected to the conductive substrate 80 through the second conductive end 412. Further, the bottom surface of the first conductive end 411 is higher than the bottom surface of the second conductive end 412, i.e. the plane of the first conductive end 411 and the plane of the second conductive end 412 have a certain height difference.

Specifically, in the embodiment of the present application, the second conductive sheet 42 has a conductive sheet body 421, a third conductive end 422 extending from the conductive sheet body 421 integrally, and a fourth conductive end 423, wherein the conductive sheet body 421 is in an integral structure, a through hole is formed in the middle of the conductive sheet body 421, and the third conductive end 422 and the fourth conductive end 423 extend from the conductive sheet body 421 integrally. The third conductive end 422 and the fourth conductive end 423 are at least partially exposed on the upper surface of the base 10, such that the third conductive end 422 is electrically connected to the second sub-coil 2112 and the fourth conductive end 423 is electrically connected to the third sub-coil 2121. Preferably, the conductive sheet body 421, the third conductive end 422, and the fourth conductive end 423 are located in the same horizontal plane.

Specifically, in the embodiment of the present application, the third conductive sheet 43 includes a fifth conductive end 431 and a sixth conductive end 432 integrally extending from the fifth conductive end 431, and the fifth conductive end 431 and the sixth conductive end 432 are disposed at both ends of the third conductive sheet 43. The fifth conductive end 431 is at least partially exposed on the upper surface of the base 10 to be electrically connected with the fourth sub-coil 2122; the sixth conductive end 432 is bent downward from the plane of the fifth conductive end 431 to form a recess for electrically connecting to the conductive substrate 80 through the sixth conductive end 432. Further, the bottom surface of the fifth conductive end 431 is higher than the bottom surface of the sixth conductive end 432, i.e. the plane of the fifth conductive end 431 and the plane of the sixth conductive end 432 have a certain height difference.

More specifically, in the embodiment of the present application, the first conductive end 411, the second conductive end 412, the third conductive end 422, the fourth conductive end 423, the fifth conductive end 431 and the sixth conductive end 432 are arranged around the circumference of the base 10, that is, the connection ends of the electrical connection assembly 40 are arranged in a staggered manner, so as to avoid interference between each other. Further, the first conductive sheet 41 and the third conductive sheet 43 are disposed on a side of the second conductive sheet 42 where the conductive ends are not disposed, so that the structure of the electrical connection assembly 40 is more compact.

It can be appreciated that, in the embodiment of the present application, the at least two coil assemblies 21 are disposed on the upper surface of the base body 11, and the electrical connection between the at least two coil assemblies and the conductive substrate 80 is achieved through the electrical connection assembly 40, and the sensing element 52 is directly disposed on the upper surface of the conductive substrate 80 through the opening on the base 10, so as to achieve the electrical connection between the sensing element 52 and the conductive substrate 80. The arrangement is such that the height of the at least two coil sets 21 is higher than the height of the sensing element 52, i.e. the top surface of the at least two coil sets 21 is higher than the top surface of the sensing element 52. Since the at least two magnet sets 22 are disposed opposite to the at least two coil sets 21 along the height direction, the sensing magnet 51 is disposed opposite to the sensing element 52 along the height direction, and as the height of the sensing element 52 is reduced, the height of the sensing magnet 51 is reduced to maintain good sensing effect, which results in that the second extending end 722 and the fourth extending end 724 are respectively provided with a bending section extending downwards.

Scheme A-1 below is slightly different from scheme A-2.

[ Scheme A-1 ]

As shown in fig. 9, 10, 11, 12, 13, 14, the iris diaphragm further includes a reset assembly 90, the reset assembly 90 is disposed at the limit stop 13 of the base 10, wherein the reset assembly 90 is located at one side of the at least two magnet groups 22 or the sensing magnet 51, that is, the reset assembly 90 is disposed opposite to the at least two magnet groups 22 or the sensing magnet 51 along the horizontal direction, and a force along the horizontal direction is generated between the reset assembly 90 and the at least two magnet groups 22 or the sensing magnet 51, so that the movable carrier 31 is kept at a position of an initial state by the force between the reset assembly 90 and the at least two magnet groups 22 or the sensing magnet 51. It should be noted that, in the preferred embodiment of the present invention, the initial state position refers to the position where the movable carrier 31 is located when the at least two coil sets 21 are not energized. As an example, when the movable carrier 31 is at the initial position, the aperture of the light passing hole formed by the blade assembly 30 at this time is the minimum (or maximum) aperture, that is, the variable aperture is the minimum (or maximum) aperture in the initial state. Thus, when the drive assembly 20 is energized, the reset force of the reset assembly 90 is overcome by the drive assembly 20 and the blade assembly 30 is driven to rotate in a particular reverse direction such that the clear aperture becomes larger (or smaller).

In a specific example of the present application, when the power is not applied, the force generated between the reset assembly 90 and the sensing magnet 51 or the at least two magnet sets 22 causes the sensing magnet 51 or the at least two magnet sets 22 to be driven to move in a direction away from (or towards) the reset assembly 90, so as to drive the movable carrier 31 to rotationally move, such that the movable carrier 31 is kept at a position. It should be noted that this position may be any position where the carrier extension 312 of the movable carrier 31 is located in the second limit groove 130 of the base 10, for example, the carrier extension 312 is located in the middle of the second limit groove 130, and both ends of the carrier extension 312 do not contact with the limit stop 13 of the base 10; it is to be understood that this position may be a limit position to which the movable carrier 31 can rotate, that is, a position where the carrier extension 312 of the movable carrier 31 and the limit stop 13 of the base 10 contact each other and cannot move further. When the movable carrier 31 is kept at a position by the mutual attractive force (or repulsive force) generated between the reset assembly 90 and the at least two magnet sets 22 or the sensing magnet 51, the position can only be the limit position of the movement of the movable carrier 31, because the closer the distance between the at least two magnet sets 22 or the sensing magnet 51 and the magnetic attraction member is, the larger the magnetic attractive force generated between the two magnet sets is, and the movable carrier 31 is driven to move until the carrier extension 312 of the movable carrier 31 and the limit stop 13 of the base 10 are contacted with each other, and cannot move continuously, and at the moment, the limit position of the movement of the movable carrier 31 is reached.

Specifically, in the embodiment of the present application, the reset assembly 90 is embedded in the base 10, and in one embodiment of the present application, the reset assembly 90 is integrally formed on the base 10 through an insert molding process, and in another embodiment of the present application, the reset assembly 90 is embedded in the base 10. It should be noted that the number of the reset assemblies 90 is at least two, and the reset assemblies 90 include a first reset element 91 and a second reset element 92, where the first reset element 91 and the second reset element 92 are symmetrically disposed around the optical axis, and it should be noted that at least two reset assemblies 90 are disposed on the limit stop 13 adjacent to the carrier extension 312. In a specific example of the present application, the first reset element 91 is disposed on the first limit stop 131 or the fourth limit stop 134, and the second reset element 92 corresponding thereto is disposed on the third limit stop 133 or the second limit stop 132.

The first reset element 91 is disposed on the side of the sensing magnet 51 along the horizontal direction, the second reset element 92 is disposed on the side of the weight element 60 along the horizontal direction, that is, the sensing magnet 51 and the first reset element 91 are disposed opposite to each other along the horizontal direction, and the weight element 60 and the second reset element 92 are disposed opposite to each other along the horizontal direction. The first reset element 91 is disposed on the side of the limit stop 13 near the sensing magnet 51, and the second reset element 92 is disposed on the side of the limit stop 13 near the weight element 60.

It will be appreciated that in this preferred embodiment of the invention, the force generated by the first reset element 91 and the sensing magnet 51 and the force generated between the second reset element 92 and the weight element 60 cooperate to drive the vane assembly 30 in a clockwise (or counter-clockwise) direction when the drive assembly 20 is not energized. That is, in the preferred embodiment of the present invention, the force generated between the first reset element 91 and the sensing magnet 51 and the force generated between the second reset element 92 and the weight element 60 are forces that drive the vane assembly 30 to move in a clockwise (or counterclockwise) direction.

In other words, in the preferred embodiment of the present invention, the blade assembly 30 is driven to rotate in a specific circumferential direction by the force generated between the first reset element 91 of the reset assembly 90 and the sensing magnet 51 and the force generated between the second reset element 92 and the weight element 60. Preferably, in the preferred embodiment of the present invention, since the first reset element 91 and the second reset element 92 of the reset assembly 90 are symmetrically disposed in the optical axis direction, the force generated by the first reset element 91 and the sensing magnet 51 of the reset assembly 90 and the force generated between the second reset element 92 and the weight element 60 are opposite to each other. It will be appreciated that the direction of the force generated by the first reset element 91 and the sensing magnet 51 of the reset assembly 90 and the direction of the force generated between the second reset element 92 and the weight element 60 will vary with the position of the first reset assembly 91 and the second reset element 92.

Specifically, in other embodiments of the present application, the first reset element 91 is located on one side of the first magnet 221 along the horizontal direction, the second reset element 92 is disposed on one side of the second magnet 222 along the horizontal direction, that is, the first magnet 221 is disposed opposite to the first reset element 91 along the horizontal direction, and the second magnet 222 is disposed opposite to the second reset element 92 along the horizontal direction. The first reset element 91 is disposed on the side of the limit stop 13 near the first magnet 221, and the second reset element 92 is disposed on the side of the limit stop 13 near the second magnet 222. It should be noted that, in the preferred embodiment of the present application, the first reset element 91 and the second reset element 92 are located on the same side of the first magnet 221 and the second magnet 222, such as the left side or the right side.

It should be understood that, in an embodiment of the present application, the reset element 90 is made of a magnetic material, such as a magnet or a magnet, and the reset element 90 made of a magnetic material may be the same as (or opposite to) the magnetic poles of the sensing magnet 51 or the at least two magnet sets 22, so that the reset element 90 can generate a force that is repulsive (or attractive) to each other between the sensing magnet 51 or the at least two magnet sets 22. For example, in one embodiment of the present application, the magnetic pole of the reset element 90 is an N-pole (or S-pole), and the magnetic pole of the sensing magnet 51 is an N-pole (or S-pole). In another specific example of the present application, the magnetic pole of the reset assembly 90 is N pole (or S pole), the magnetic pole of the first sub-magnet 2211 of the first magnet 221 in the at least two magnet groups 22 is N pole (or S pole), the magnetic pole of the second sub-magnet 2212 is S pole (or N pole), and the magnetic pole of the third sub-magnet 2221 is N pole (or S pole), it is worth mentioning that the first sub-magnet 2211 or the third sub-magnet 2221 is located at the side close to the reset assembly 90, and the second sub-magnet 2212 is located between the first sub-magnet 2211 and the third sub-magnet 2221.

Preferably, in the preferred embodiment of the present invention, the magnetic poles of the reset assembly 90 and the sensing magnet 51 or the at least two magnet sets 22 are the same (or opposite), so that the reset assembly 90 can generate a force with the sensing magnet 51 or the at least two magnet sets 22 that is repulsive (or attractive) to each other.

The interaction between the reset assembly 90 and the sensing magnet 51 is described in the present application as an example. As shown in fig. 12, the first reset element 91 is disposed in the limit stop 13 near the sensing magnet 51, and the second reset element 92 is disposed in the limit stop 13 near the weight element 60, wherein the first reset element 91 and the second reset element 92 are disposed rotationally symmetrically about the optical axis. When the at least two coil sets 21 are not energized, a reset force which is opposite to each other along the horizontal direction is generated between the reset assembly 90 and the sensing magnet 51 and the weight element 60, and under the action of the reset force which is opposite to each other, the sensing magnet 51 and the weight element 60 move towards the side far away from the reset assembly 90, so as to drive the movable carrier 31 to rotate until the carrier extension 312 of the movable carrier 31 contacts with the limit stop 13 of the base 10, and the movable carrier 31 cannot move continuously and is at the current position; when the at least two coil sets 21 are energized, the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 is greater than the magnetic repulsive force between the reset assembly 90 and the sensing magnet 51, the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 is also greater than the magnetic repulsive force between the first magnetic attraction member and the counterweight element 60, and the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 and radially tangential to the movable carrier 31 drives the movable carrier 31 to rotate, so as to drive the blade assembly 30 to rotate, thereby changing the size of the blade through hole.

It will be appreciated that in the embodiment of the present application, when the reset assembly 90 interacts with the at least two magnet groups 22, the first reset element 91 is disposed within the limit stop 13 of the first magnet 221, and the second reset element 92 is disposed within the limit stop 13 adjacent to the second magnet 222, wherein the first reset element 91 and the second reset element 92 are disposed rotationally symmetrically about the optical axis. When the at least two coil sets 21 are not energized, a reset force is generated between the reset assembly 90 and the first magnet 221 and the second magnet 222 in opposite directions along the horizontal direction (mutual attraction or mutual repulsion along the horizontal direction), under the action of the reset force in opposite directions, the first magnet 221 and the second magnet 222 move towards the side far away from the reset assembly 90, and further drive the movable carrier 31 to rotate until the carrier extension 312 of the movable carrier 31 contacts with the limit stop 13 of the base 10, and the movable carrier 31 cannot move continuously and is at the current position; when the at least two coil sets 21 are energized, the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 is greater than the magnetic repulsive force between the reset assembly 90 and the at least two magnet sets 22, and the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 and radially tangential to the movable carrier 31 drives the movable carrier 31 to rotate, so as to drive the blade assembly 30 to rotate, thereby changing the size of the through hole of the blade.

As shown in fig. 9 and fig. 13 to fig. 14, in the embodiment of the present application, the iris diaphragm further includes the connecting member 96 that is non-magnetic, the connecting member 96 may be embedded in the base 10, it should be noted that at least a portion of the connecting member 96 is exposed on the surface of the base 10, and the connecting member 96 is fixed with the diaphragm housing through the exposed portion thereof, so that the connection between the diaphragm housing and the base 10 is more firm, and cannot be easily broken or separated. In a specific example of the present application, the connecting member 96 includes a horizontal extending portion and a vertical extending portion, it is worth mentioning that the horizontal extending portion is disposed on top of the vertical extending portion, at least a portion of the horizontal extending portion is exposed on the top surface of the base 10, so as to be fixedly connected with the aperture housing through the exposed surface of the horizontal extending portion; the vertical extension portion integrally extends downwards from the horizontal extension portion, and the horizontal extension portion can be manufactured and formed by a plurality of reset assemblies 90 in an imposition mode in the manufacturing process, and the single reset assembly 90 is formed by cutting after completion. It will be appreciated that the horizontally extending portion may be fixedly connected to the aperture housing by welding to make the connection more secure. In another specific example of the present application, the connector 96 may include only a horizontally extending portion, as the present application is not limited in this regard.

As shown in fig. 9, 10, 11, 12, 13, 14, in an embodiment of the present application, the reset assembly 90 further includes a third reset element 97 and a fourth reset element 98, and the third reset element 97 and the fourth reset element 98 are symmetrically disposed about the optical axis. It should be noted that the third reset element 97 is located at a side of the sensing magnet 51, and the fourth reset element 98 is located at a side of the weight element 60. That is, the first reset element 91 and the third reset element 97 are located on opposite sides of the sensing magnet 51, and the second reset element 92 and the fourth reset element 98 are located on opposite sides of the weight element 60. That is, the first reset element 91 is disposed on one of the first limit stop 131 or the fourth limit stop 134, and the third reset element 97 is disposed on the other of the first limit stop 131 or the fourth limit stop 134; the second reset element 92 is disposed at one of the third limit stop 133 or the second limit stop 132, and the fourth reset element 98 is disposed at the other of the third limit stop 133 or the second limit stop 132. The third reset element 97 is disposed on the side of the limit stop 13 near the sensing magnet 51, and the fourth reset element 98 is disposed on the side of the limit stop 13 near the weight element 60. In another specific example of the present application, the third reset element 97 is located at a side of the weight element 60, and the fourth reset element 98 is located at a side of the sensing magnet 51, which is not limited in the present application.

Specifically, in other embodiments of the present application, the third reset element 97 is located at a side portion of the first magnet 221, the fourth reset element 98 is located at a side portion of the second magnet 222, that is, the first magnet 221 and the third reset element 97 are disposed opposite to each other in the horizontal direction, and the second magnet 222 and the fourth reset element 98 are disposed opposite to each other in the horizontal direction. The third reset element 97 is disposed on the side of the limit stop 13 near the first magnet 221, and the fourth reset element 98 is disposed on the side of the limit stop 13 near the second magnet 222. That is, the first reset element 91 and the third reset element 97 are located on opposite sides of the first magnet 221, and the second reset element 92 and the fourth reset element 98 are located on opposite sides of the second magnet 222. The third reset element 97 is located at a side of the second magnet 222, and the fourth reset element 98 is located at a side of the first magnet 221, which is not limited in the present application.

In the present embodiment, the interaction between the reset element 90 and the sensing magnet 51 is described as an example, and in the present embodiment, the third reset element 97 and the fourth reset element 98 are made of magnetic materials, such as magnets or magnetite. The magnetic poles of the third reset element 97 and the first reset element 91 of the reset assembly 90 are the same as the magnetic poles of the sensing magnet 51 or the at least two magnet groups 22, so that a force F1 is generated between the first reset element 91 and the sensing magnet 51 or the at least two magnet groups 22 in opposite directions, a force F3 is generated between the third reset element 97 and the sensing magnet 51 or the at least two magnet groups 22 in opposite directions, and the movable carrier 31 is kept at a position by the reset force on both sides of the sensing magnet 51 or the at least two magnet groups 22 in opposite directions.

As shown in fig. 10, in a specific example of the present application, the magnetic pole of the first reset element 91 is N pole (or S pole), the magnetic pole of the sensing magnet 51 is N pole (or S pole), the magnetic pole of the third reset element 97 is N pole (or S pole), a force F1 is generated between the first reset element 91 and the sensing magnet 51 in opposite directions, a force F2 is generated between the third reset element 97 and the sensing magnet 51 in opposite directions, the directions of F1 and F2 are opposite, and when F1 is equal to F2, the sensing magnet 51 is held at a position between the first reset element 91 and the third reset element 97, that is, the distance between the sensing magnet 51 and the first reset element 91 and the third reset element 97 is the same, and at this time, the movable carrier 31 is held at a position. This is because, as the distance between the first reset element 91 and the sensing magnet 51 is closer, the force of F1 is larger, and the larger reset force drives the sensing magnet 51 to move in a direction away from the first reset element 91, and as the distance between the third reset element 97 and the sensing magnet 51 is closer, the force of F2 is larger, and the larger reset force drives the sensing magnet 51 to move in a direction away from the third reset element 97 until the sensing magnet 51 is at the intermediate position. The reset force generated between the first reset element 91 and the sensing magnet 51 and the reset force generated between the third reset element 97 and the sensing magnet 51 are the same, and when the at least two coil sets 21 are not energized, the sensing magnet 51 does not move, so that the movable carrier 31 is kept at the current position.

As shown in fig. 7B, in another specific example of the present application, the magnetic pole of the first reset element 91 is N (or S), the magnetic pole of the first sub-magnet 2211 of the first magnet 221 in the at least two magnet groups 22 is N (or S), the magnetic pole of the second sub-magnet 2212 is S (or N), the magnetic pole of the third sub-magnet 2213 is N (or S), and the magnetic pole of the third reset element 97 is N (or S). It should be noted that the first sub-magnet 2211 is located at a side close to the first reset element 91, the third sub-magnet 2213 is located at a side close to the third reset element 97, and the second sub-magnet 2212 is located between the first sub-magnet 2211 and the third sub-magnet 2213.

In the initial state, the at least two coil sets 21 are not energized, and a reset force which is opposite to each other in the horizontal direction is generated between the reset assembly 90 and the sensing magnet 51 and the weight element 60, so that the movable carrier 31 and the vane assembly 30 are in the initial state; in the working state, the at least two coil sets 21 are energized, the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 is greater than the magnetic repulsive force between the reset assembly 90 and the sensing magnet 51, the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 is also greater than the magnetic repulsive force between the reset assembly 90 and the counterweight element 60, and the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 and radially tangential to the movable carrier 31 drives the movable carrier 31 to rotate, so as to drive the vane assembly 30 to rotate, so as to change the size of the vane through hole.

As shown in fig. 15, in the embodiment of the present application, the first reset element 91 of the reset assembly 90 is located on one side of the sensing magnet 51, and preferably, the first reset element 91 is disposed opposite and parallel to the sensing magnet 51 in the horizontal direction, that is, a plane where one magnetic pole of the first reset element 91 is located is parallel to a plane where one magnetic pole of the sensing magnet 51 is located in the vertical direction. By increasing the magnetic attraction force in the horizontal direction between the reset assembly 90 and the sensing magnet 51 in such a manner, the size requirement of the iris on the sensing magnet 51 can be reduced, which is advantageous for miniaturization of the iris apparatus.

Further, in the embodiment of the present application, the sensing magnet 51 and the reset assembly 90 have overlapping portions in the circumferential direction of the iris apparatus. Preferably, the projection of the sensing magnet 51 on the projection plane perpendicular to the optical axis is included in the projection of the reset assembly 90 on the projection plane perpendicular to the optical axis, so as to further increase the magnetic attraction force of the sensing magnet 51 and the reset assembly 90 in the horizontal direction. In other embodiments of the application, the top surface of the sensing magnet 51 may be higher than the top surface of the reset assembly 90; or the bottom surface of the sensing magnet 51 is higher than the bottom surface of the reset assembly 90, so that a portion of the sensing magnet 51 and a portion of the reset assembly 90 overlap in the circumferential direction of the iris apparatus.

More specifically, in the embodiment of the present application, the line connecting the centers of the sensing magnet 51 and the weight element 60 is taken as a symmetry axis, the first reset element 91 and the second reset element 92 are disposed on two opposite sides of the symmetry axis, the third reset element 97 and the fourth reset element 98 are disposed on two opposite sides of the symmetry axis, the sensing magnet 51 is balanced under the action of the first reset element 91 and the third reset element 97, and the weight element 60 is balanced under the action of the second reset element 92 and the fourth reset element 98, so that the movable carrier 31 can return to the initial position under the condition of no power.

It should be noted that, in the embodiment of the present application, the sensing magnet 51 interacts with the sensing element 52 to sense the position change of the movable carrier 31; and interacts with the reset assembly 90 to maintain the movable carrier 31 in the initial position by mutually opposing reset forces in the rest condition.

Further, in an embodiment of the present application, the reset assembly 90 may be located above the electrical connection assembly 40, and the reset assembly 90 overlaps at least a portion of the electrical connection assembly 40, which is not limited in this aspect of the present application. In the present application, the reset assembly 90 is attached to a side wall of the limit stop 13 of the base 10, or the reset assembly 90 is embedded in the limit stop 13 of the base 10, which is not limited in the present application.

In other embodiments of the present application, the reset assembly 90 is located at a side of the at least two magnet sets 22, that is, the at least two magnet sets 22 and the reset assembly 90 are disposed opposite to each other in a horizontal direction, and the reset assembly 90 is disposed on a side of the limit stop 13 near the at least two magnet sets 22.

[ Scheme A-2 ]

As shown in fig. 9 and 10A, in the embodiment of the present application, the iris diaphragm further includes a magnetic attraction assembly 90, wherein the magnetic attraction assembly 90 is disposed on the base 10. The magnetic attraction assembly 90 is disposed on the limit stop 13 of the base 10 in the height direction. Preferably, the magnetic attraction component 90 is disposed on a side portion of the at least two magnet groups 22 or the sensing magnet 51, that is, the magnetic attraction component 90 is disposed opposite to the at least two magnet groups 22 or the sensing magnet 51 along a horizontal direction, and a magnetic attraction force along the horizontal direction is generated between the magnetic attraction component 90 and the at least two magnet groups 22 or the sensing magnet 51, so that the movable carrier 31 is kept at a position by the magnetic attraction force. In other words, the magnetic attraction assembly 90 returns the movable carrier 31 to the initial position by the magnetic attraction force. The initial position refers to the initial position of the iris diaphragm device before the power is not applied, in a specific example of the present application, the magnetic attraction force is the mutual attraction force generated between the magnetic attraction component 90 and the sensing magnet 51, when the power is not applied, the sensing magnet 51 is attracted to move towards the direction approaching to the magnetic attraction component 90 by the action of the magnetic attraction force, and the movable carrier 31 is driven to rotate and move until the carrier extension 312 of the movable carrier 31 contacts with the limit stop 13 of the base 10, and at this time, the movable carrier 31 and the sensing magnet 51 stop moving. It will be appreciated that the initial position is the limit position reached by which the movable carrier 31 can rotate under the magnetic attraction generated between the magnetic attraction assembly 90 and the sensing magnet 51. In another specific example of the present application, the magnetic attraction force is an attractive force generated between the magnetic attraction assembly 90 and the at least two magnet sets 22, and when the at least two magnet sets 22 are not energized, the magnetic attraction force causes the at least two magnet sets 22 to be attracted and move towards a direction approaching the magnetic attraction assembly 90, so as to drive the movable carrier 31 to rotationally move until the carrier extension 312 of the movable carrier 31 contacts the limit stop 13 of the base 10, and at this time, the movable carrier 31 and the sensing magnet 51 stop moving. It will be appreciated that the initial position is a limit position reached by the movable carrier 31 being rotatable under the magnetic attraction generated between the magnetic attraction assembly 90 and the at least two magnet groups 22.

Specifically, in the embodiment of the present application, the magnetic component 90 is embedded in the base 10, and in a specific example of the present application, the magnetic component 90 is integrally formed on the base 10 through an insert injection molding process. Preferably, the magnetic attraction assembly 90 further includes at least two magnetic attraction units, and the magnetic attraction units are symmetrically arranged based on the optical axis. In this preferred embodiment of the application, the magnetic assembly 90 comprises a first magnetic unit 91 and a second magnetic unit 92, wherein the magnetic units are disposed adjacent to the limit stop 13 of the carrier extension 312. As an example, in a specific example of the present application, the first magnetic unit 91 is disposed at the first limit stop 131 or the fourth limit stop 134, and the second magnetic unit 92 corresponding thereto is disposed at the third limit stop 133 or the second limit stop 132.

Specifically, in the embodiment of the present application, the first magnetic attraction unit 91 is located at a side portion of the sensing magnet 51 in the height direction, and the second magnetic attraction unit 92 is located at a side portion of the weight element 60 in the height direction, that is, the sensing magnet 51 is disposed opposite to the magnetic attraction assembly 90 in the horizontal direction, and the weight element 60 is disposed opposite to the magnetic attraction assembly 90 in the horizontal direction. The first magnetic attraction member is disposed on the side of the limit stop 13 close to the sensing magnet 51, and the second magnetic attraction unit 92 is disposed on the side of the limit stop 13 close to the weight element 60.

In other words, in the preferred embodiment of the present invention, the first and second magnetic attraction units 91 and 92 are provided to the base 10, and the first and second magnetic attraction units 91 and 92 are on a side close to the sensing magnet 51 so as to generate a magnetic attraction force capable of driving the movable carrier 31 to move with the sensing magnet 51 through the magnetic attraction assembly 90. The first magnetic attraction unit 91 is located at a side portion of the sensing magnet 51 and corresponds to the sensing magnet 51, and the second magnetic attraction unit 92 is located at a side portion of the weight element 60 and corresponds to the weight element 60.

It will be appreciated that in the embodiment of the present application, the magnetic attraction assembly 90 is a magnetically conductive member, so that the magnetic attraction assembly 90 can attract the sensing magnet 51. The magnetic assembly 90 may be made of metal, and the magnetic assembly 90 may further include a horizontal extension portion and/or a vertical extension portion, where the horizontal extension portion may be located at the top or bottom of the vertical extension portion. As an example, in other alternative embodiments of the present application, the magnetic attraction component 90 may also be made of a magnetic material, such as a magnet, and the magnetic attraction component 90 made of a magnetic material may attract the sensing magnet 51 and the weight element 60 to generate a magnetic attraction force.

In an embodiment of the present application, as shown in fig. 10A, the magnetic component 90 is made of metal, the horizontal extension portion of the magnetic component made of metal is located at the bottom of the vertical extension portion, the vertical extension portion generates magnetic attraction force with the sensing magnet 51 and the weight element 60, and the horizontal extension portion can manufacture and shape a plurality of magnetic components 90 in a split mode in the manufacturing process, and after the completion, a single magnetic component 90 is formed by cutting. It will be appreciated that the metallic material may comprise only a vertically extending portion, i.e. it is only used to create a magnetic attraction force with the sensing magnet 51 and the weight element 60.

In detail, in the preferred embodiment of the present invention, the first magnetic unit 91 of the magnetic assembly 90 is made of metal, such as iron, wherein the first magnetic unit 91 is embedded in the base 10, and the first magnetic unit 91 is adjacent to the sensing magnet 51, and the movable carrier is driven to return to the initial position by the magnetic attraction force of the first magnetic unit 91 and the sensing magnet 51. In the preferred embodiment of the present invention, the first magnetic unit 91 is a vertical iron plate extending from top to bottom.

Alternatively, in another alternative embodiment of the present invention, the first magnetic unit 91 is made of metal, such as iron, wherein the first magnetic unit 91 includes a transverse member 911 and a longitudinal member 912 integrally extending from the transverse member in the optical axis direction. The first magnetic unit 91 is embedded in the base 10, wherein the cross member 911 of the first magnetic unit 91 is located at the top or bottom of the longitudinal member 912. Preferably, in the preferred embodiment of the present invention, the first magnetic unit 91 is a metal sheet structure having an L-shaped structure, and the first magnetic unit 91 is embedded in the base 10.

Optionally, in another optional embodiment of the present invention, the first magnetic attraction unit 91 is made of a magnetic material.

In another embodiment of the present application, as shown in fig. 12A, the magnetic component 90 is made of metal, and the horizontal extension portion of the magnetic component made of metal is located on top of the vertical extension portion, and at least a part of the horizontal extension portion is exposed on the top surface of the base 10. The vertical extension part of the magnetic attraction component 90 and the sensing magnet 51 and the weight element 60 generate magnetic attraction force, the horizontal extension part can manufacture and shape a plurality of magnetic attraction components 90 in a makeup mode in the manufacturing process, after the completion, a single magnetic attraction component 90 is formed by cutting, and the horizontal extension part is mutually fixed with the shell through the exposed part of the horizontal extension part, so that the connection between the shell and the base 10 is firmer and cannot be easily broken or separated. It will be appreciated that the horizontally extending portion may be fixedly connected to the housing by means of welding. Further, the magnetic attraction assembly 90 further includes a third sub-magnetic attraction member and a fourth sub-magnetic attraction member, wherein the third sub-magnetic attraction member and the fourth sub-magnetic attraction member only include a horizontal extension portion, that is, they are fixed with the housing only by the horizontal extension portion, and do not generate magnetic attraction force with the sensing magnet and the weight element 60. This arrangement allows the magnetic attraction between the first magnetic attraction unit 91 and the sensing magnet 51, the second magnetic attraction unit 92 and the weight element 60 in the same horizontal direction, and thus allows the movable carrier 31 to return to the initial position by the magnetic attraction. In other embodiments of the present application, the third sub-magnetic attraction member and the fourth sub-magnetic attraction member may also be provided with vertical extension portions, which the present application is not limited to.

As shown in fig. 13, in another specific example of the present application, the magnetic attraction component 90 is made of a magnetic material, such as a magnet, wherein the magnetic pole of the magnetic attraction component 90 made of the magnetic material is opposite to the magnetic pole of the sensing magnet 51, so that the magnetic attraction force of the magnetic attraction component 90 and the sensing magnet 51 can generate mutual attraction. For example, in one embodiment of the present application, the magnet of the magnet assembly 90 is an N-pole (or S-pole), and the magnet of the sensing magnet 51 is an S-pole (or N-pole). Further, the magnetic assembly 90 may further include a non-magnetic connection member, at least a portion of which is exposed on the surface of the base 10, where the connection member is fixed with the housing through the exposed portion thereof, so that the connection between the housing and the base 10 is more firm, and the connection member is not easily broken or separated. It will be appreciated that the connector may have a horizontal extension and a vertical extension, or may have only a horizontal extension, as the application is not limited in this regard. Of course, it will be appreciated that in other embodiments of the present application, the magnetic attraction assembly 90 further includes a third sub-magnetic attraction member and a fourth sub-magnetic attraction member, and when the at least two coil sets 21 are de-energized, the sensing magnet 51 generates a magnetic attraction force with the sub-magnetic attraction member that is closer thereto, so that the movable carrier 31 rotates under the magnetic attraction force.

It should be noted that, in the initial state, the at least two coil sets 21 are not energized, and a magnetic attraction force is generated between the magnetic attraction assembly 90, the sensing magnet 51 and the weight element 60 along the horizontal direction, so that the movable carrier 31 and the blade assembly are in the initial state; in the working state, the at least two coil sets 21 are energized, the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 is greater than the magnetic attraction force between the magnetic attraction assembly 90 and the sensing magnet 51, the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 is also greater than the magnetic attraction force between the magnetic attraction assembly 90 and the counterweight element 60, and the magnetic thrust generated between the at least two coil sets 21 and the at least two magnet sets 22 and radially tangential to the movable carrier 31 drives the movable carrier 31 to rotate, so as to drive the blade assembly to rotate, thereby changing the size of the through hole of the blade.

It is worth integrating that, as shown in fig. 14A and 14B, in the embodiment of the present application, the plane where the vertical portion of the magnetic attraction assembly 90 is located is parallel to the plane where the side of the sensing magnet 51, which is close to the magnetic attraction assembly 90, is located, so that the magnetic attraction force in the horizontal direction between the magnetic attraction assembly 90 and the sensing magnet 51 is increased, and in this way, the size requirement of the variable aperture device on the sensing magnet 51 can be reduced, which is beneficial to miniaturization of the variable aperture device; in other embodiments of the present application, the plane of the magnetic attraction component 90 may have a certain angle with the plane of the sensing magnet 51 on the side close to the magnetic attraction component 90.

Further, in the embodiment of the present application, the sensing magnet 51 and the magnet assembly 90 have overlapping portions in the circumferential direction of the iris apparatus. Preferably, in the preferred embodiment of the present application, the projection of the sensing magnet 51 on the projection plane perpendicular to the optical axis (i.e., the horizontal direction) is included in the projection of the magnet assembly 90 on the projection plane perpendicular to the optical axis (i.e., the horizontal direction), so that the sensing magnet 51 and the magnet assembly 90 are attracted magnetically in the horizontal direction. In other embodiments of the application, the top surface of the sensing magnet 51 may be higher than the top surface of the magnet assembly 90; or the bottom surface of the sensing magnet 51 is higher than the bottom surface of the magnet assembly 90, so that a portion of the sensing magnet 51 and a portion of the magnet assembly 90 overlap in the circumferential direction of the iris apparatus.

Still preferably, in this embodiment of the present application, the line between the centers of the sensing magnet 51 and the weight element 60 is taken as a symmetry axis, and the first magnetic attraction unit 91 and the second magnetic attraction unit 92 are disposed on opposite sides of the symmetry axis, that is, the direction of the magnetic attraction force F3 generated between the first magnetic attraction unit 91 and the sensing magnet 51 is opposite to the direction of the magnetic attraction force F4 generated between the second magnetic attraction unit 92 and the weight element 60, and under the combined action of F3 and F4, the movable carrier is driven to rotate, so that the movable carrier 31 is in a position under the condition of no power.

It should be noted that, in the embodiment of the present application, the sensing magnet 51 interacts with the sensing element 52 to sense the position change of the movable carrier 31; and interacts with the magnetic attraction assembly 90 to return the movable carrier 31 to the original position by magnetic attraction in the non-operating state.

Further, in the embodiment of the present application, the magnetic component 90 is located above the electrical connection component 40, and the magnetic component 90 may also overlap at least a portion of the electrical connection component 40, which is not limited in the present application. In the present application, the magnetic component 90 may be attached to a side wall of the limit stop 13 of the base 10, and the magnetic component 90 may be embedded in the limit stop 13 of the base 10, which is not limited in the present application.

Of course, in other embodiments of the present application, the at least two magnet sets 22 and the magnetic assembly 90 are disposed opposite to each other along the horizontal direction, and the magnetic assembly 90 is disposed on the side of the limit stop 13 near the at least two magnet sets 22, which is not limited in the present application.

Scheme A-1 is the same as scheme A-2 as follows.

As shown in fig. 7A to 7C, in the embodiment of the present application, the iris apparatus further includes a support assembly 93, where the support assembly 93 is disposed between the movable carrier 31 and the base 10, so that the support assembly 93 can always support the movable carrier 31 during rotation of the movable carrier 31 relative to the base 10, thereby improving stability of the movable carrier 31 during movement. Further, the support assembly 93 includes a ball 931 and a track 932, the track 932 further includes a lower track disposed on the top surface of the base 10 and an upper track disposed on the bottom surface of the movable carrier 31, the upper track and the lower track are both in an arc-shaped structure, the ball 931 is accommodated between the upper track and the lower track, and the ball 931 can move in the upper track and the lower track to provide a certain movement space for the movement of the movable carrier 31. In the present application, the number of the supporting members 93 is at least 3, and at least 3 of the supporting members 93 may constitute a plane so that the movable carrier 31 is smoothly supported on the supporting members 93.

Specifically, in the embodiment of the present application, the supporting component 93 and the limit stop 13 are arranged in a staggered manner, so as to fully utilize the free space position on the base 10. For example, in one embodiment of the present application, the support member 93 is disposed near the inner edge of the base body 11, and the limit stop 13 is disposed near the outer edge of the base body 11 to avoid interference with the movement of the support member.

As shown in fig. 1, in the embodiment of the present application, the iris apparatus further includes a magnetic attraction member 94, wherein the magnetic attraction member 94 is disposed opposite to the sensing magnet 51 and the weight element 60 in the height direction, so as to keep the support assembly 93 clamped between the movable carrier 31 and the base 10 by the magnetic attraction force between the magnetic attraction member 94 and the sensing magnet 51 and the magnetic attraction force between the magnetic attraction member 94 and the weight element 60. Further, the number of the magnetic attraction members 94 is two, and the two magnetic attraction members 94 are respectively disposed below the opposite positions of the sensing magnet and the weight element 60, so that the movable carrier 31 can always maintain frictional contact with the support component 93. In a specific example of the present application, the two magnetic attraction members 94 are symmetrically disposed around the optical axis, and the two magnetic attraction members 94 can generate magnetic attraction force with the sensing magnet 51 and the counterweight element 60 along the height direction, so that the symmetrical arrangement is convenient for maintaining stability when the movable carrier 31 moves, maintaining the centering effect of the movable carrier 31, and effectively preventing the movable carrier 31 from falling off along with shaking or inversion of the camera module.

More specifically, in the embodiment of the present application, the magnetic attraction member 94 is disposed on the base 10 opposite to the sensing magnet 51 and the weight element 60 disposed on the movable carrier 31 in the height direction. In a specific example of the present application, the magnetic attraction member 94 is disposed on the front surface of the electrical connection element; in another specific example of the present application, the magnetic attraction member 94 is disposed between the base 10 and the electrical connection element, that is, the magnetic attraction member 94 is disposed on the front surface of the conductive substrate 80 and the back surface of the base 10; in another embodiment of the present application, the magnetic member 94 is integrally formed with the base 10 by insert molding. It should be noted that the arrangement position and arrangement manner of the magnetic attraction member 94 are not limited by the present application.

As shown in fig. 1, in the embodiment of the present application, the iris apparatus further includes a spacer 95, wherein the spacer 95 is disposed between the vane unit 32 and the movable carrier 31, and the spacer 95 is used to prevent the vane unit 32 from sagging during rotation to affect the light transmission effect. The spacer 95 is in an annular structure, the center of the spacer 95 is provided with a through hole of the spacer 95, the aperture size of the through hole of the spacer 95 is between the maximum aperture and the minimum aperture of the through hole of the blade unit 32, and when the through hole of the blade unit 32 is maximum, the size of the through hole of the spacer 95 determines the size of the luminous flux; when the blade through hole of the blade unit 32 is minimum, the size of the blade through hole determines the size of the light flux.

Further, the spacer 95 is provided with mounting holes corresponding to the supporting protrusions and the moving protrusions on the movable carrier 31, so that the spacer 95 can be more compactly mounted on the movable carrier 31, avoiding an increase in the height of the iris diaphragm device. Further, the surface of the spacer 95 may be provided with a black material to prevent stray light from entering the iris apparatus.

Exemplary camera Module

As shown in fig. 16, an image capturing module according to an embodiment of the present application is illustrated, which includes a photosensitive assembly 100, a lens assembly 200 held on a photosensitive path of the photosensitive assembly 100, and an iris diaphragm device 300.

It should be noted that the iris device 300 in the present application has the same structure and function as the iris device in the above preferred embodiment, and thus will not be described in detail. The lens assembly 200 includes an optical lens 210 and a lens driving assembly 220 driving the optical lens 210 to move. The optical lens 210 is an integrated lens, and includes a lens barrel 2110 and at least one lens group 2120 accommodated in the lens barrel 2110, wherein the at least one lens group 2120 includes at least one optical lens. The lens driving assembly 220 includes a lens driving movable portion, a lens driving fixed portion, and a lens driving section disposed between the lens driving movable portion and the lens driving fixed portion, the lens driving section driving the lens movable portion to move relative to the lens fixed portion. The optical lens 210 is fixed on a lens movable part of the lens driving assembly 220 and is driven by the lens driving assembly 220 to move along the optical axis direction or move perpendicular to the optical axis direction, so as to realize an automatic focusing function or an optical anti-shake function of the image capturing module.

In another embodiment of the present application, the optical lens 210 is a split lens, which includes a plurality of lens portions, specifically, the split lens includes a first lens portion and a second lens portion disposed along an optical axis, the second lens portion includes a second lens barrel and at least one second lens installed in the second lens barrel, the first lens component includes at least one first lens, and in some embodiments, the first lens component further includes a first lens barrel, and the at least one first lens is accommodated in the first lens barrel.

The photosensitive assembly 100 includes a circuit board 110, and a photosensitive chip 120, an electronic component 130, a connector 140, a base 150 and a filter 160 mounted on the circuit board 110. The wiring board 110 includes a wiring board main body, a connection tape connecting the wiring board main body and the connector portion and achieving electrical conduction between the wiring board main body and the connector portion. The photosensitive chip 120 and the electronic component 130 are electrically connected to the circuit board main body, and the connector is mounted to the connector portion.

The photosensitive chip 120 is used for receiving the external light collected by the lens assembly 200 for imaging and is electrically connected with the portable device through the circuit board 110. The photosensitive chip 120 includes a photosensitive area and a non-photosensitive area, and the photosensitive chip 120 is electrically connected to the circuit board 110 through a pad of the photosensitive chip 120 located in the non-photosensitive area, for example, the photosensitive chip 120 is electrically connected to a circuit board main body of the circuit board 110 through wire bonding (wire bonding), soldering, FC process (flip chip), RDL (rewiring layer technology), or the like. The photosensitive chip 120 is adapted to be fixed on the front surface of the circuit board body through an adhesive medium (defining the surface of the circuit board 110 facing the lens assembly 200 as the front surface, and the opposite side of the circuit board 110 from the front surface is the bottom surface of the circuit board 110). In some embodiments of the present application, the circuit board body has a groove or a through hole (circuit board through hole) in the middle, and the photosensitive chip 120 is mounted and fixed in the groove or the circuit board through hole of the circuit board body, so that the influence of the thickness of the circuit board body on the thickness of the photosensitive assembly 100 is reduced, and the height of the camera module is reduced.

The base 150 is disposed on the circuit board body of the circuit board 110, and is used for supporting other components. In one embodiment of the present application, the base 150 is implemented as a separately molded plastic bracket that is attached to the surface of the circuit board body by an adhesive medium and is used to support other components. Of course, in other embodiments of the present application, the base 150 can be formed on the circuit board body in other manners, for example, the base 150 is implemented as a molded base 150 integrally formed at a predetermined position of the circuit board body through a molding process, which is not limited to the present application.

In one embodiment of the present application, the filter element 160 is held in the photosensitive path of the photosensitive chip 120 for filtering the imaging light entering the photosensitive chip 120. In one embodiment of the present application, the filter 160 is mounted on the base 150 and corresponds to at least the photosensitive area of the photosensitive chip 120. It should be noted that in other examples of the application, the filter element 160 may be indirectly mounted to the base 150 via other supports. In other embodiments of the present application, the filter 160 may also be mounted at other locations of the image capturing module, for example, the filter 160 may be formed in the optical lens 210 (e.g., as a filter attached to a surface of a certain optical lens of the optical lens 210), which is not limited to the present application.

In an embodiment of the present application, the photosensitive assembly 100 further includes a chip driving assembly (not shown in the drawings), and the chip driving assembly is adapted to drive the photosensitive chip 120 of the photosensitive assembly 100 to translate, rotate or tilt, so as to implement the chip anti-shake function of the camera module.

The iris diaphragm device 300 is disposed on the top surface or in the middle of the optical lens 210. In one embodiment of the present application, the iris apparatus 300 is mounted on the top surface of the optical lens 210, and the iris apparatus 300 is fixed to the optical lens 210. Specifically, the base of the iris apparatus 300 is adhered to the lens barrel 2110 of the optical lens 210 through an adhesive medium, and at least a part of the optical lens 210 protrudes into the housing through hole of the iris apparatus 300. The diaphragm driving circuit board of the iris diaphragm device 300 is electrically connected to the lens driving assembly 220, and in one embodiment of the present application, the driving circuit board of the iris diaphragm is electrically connected to a spring plate of the lens driving assembly 220 for resetting the movable carrier of the iris diaphragm.

In another embodiment of the present application, when the optical lens 210 is a split lens, the iris apparatus 300 may be disposed in the middle of the optical lens 210. Specifically, the second lens portion is mounted and fixed to the lens driving assembly 220, the first lens portion is mounted and fixed to the top surface of the iris apparatus 300, the iris apparatus 300 is further mounted and fixed to the lens barrel 2110 of the optical lens 210, and the first lens portion and the second lens portion are disposed along the optical axis of the optical lens 210.

Scheme B: referring to FIGS. 17-40 and reference numerals therefor

The axial direction in the present application means the direction of the optical axis, and the radial direction means the direction perpendicular to the optical axis. The object side refers to the side of the lens or the camera module close to the shooting object, and the image side refers to the side of the lens or the camera module close to the photosensitive chip.

As shown in fig. 17 and 22, the iris diaphragm optical lens of the present application includes an iris diaphragm device 100 and an optical lens 500, where the iris diaphragm device 100 is used to adjust the light incoming amount of the optical lens 500, and the lens of the present application is applied in an image capturing module, so that the image capturing module can adjust the light incoming amount according to the external light condition during the capturing process, and a better imaging effect can be obtained in different capturing environments.

As shown in fig. 18 and 23, the variable aperture device 100 includes a blade 3, and the blade 3 is configured to rotate to form an entrance aperture 30 with an adjustable aperture. As shown in fig. 19 and 24, the iris apparatus 100 has a light-passing hole 110, and the light-passing hole 110 is located on the image side of the entrance hole 30 such that when the aperture of the entrance hole 30 is changed, the amount of light entering the light-passing hole 110 is changed accordingly. One end of the optical lens 500 extends from the image side of the light passing hole 110 into the light passing hole 110, that is, the diaphragm device 100 is nested with the upper end of the optical lens 500, so that when the light entering amount of the light passing hole 110 changes, the light entering amount of the optical lens 500 changes accordingly. Fig. 21 is a simplified schematic diagram of an embodiment of an iris diaphragm optical lens of the application, showing one end of the optical lens 500 nested within the light-passing aperture 110 of the iris diaphragm device 100. The iris diaphragm device 100 and the optical lens 500 are nested and installed to realize the light quantity adjustment, so that the overall height of the iris diaphragm optical lens can be reduced, and the upper end of the optical lens 500 is protected by the iris diaphragm device 100.

It will be appreciated by those skilled in the art that the maximum aperture of the entrance aperture 30 is equal to or smaller than the aperture of the light passing aperture 110, so that the luminous flux of the lens is determined by the aperture of the entrance aperture 30.

As shown in fig. 19-21, the optical lens 500 includes a barrel and several lenses disposed within the barrel. The lens barrel includes a first barrel portion 501 near the image side and a second barrel portion 502 near the object side. The first barrel part 501 may be connected to a motor structure of the image capturing module, so that the optical lens 500 may be driven to displace by the motor structure. The second barrel portion 502 extends wholly or partially into the light passing hole 110. It should be noted that, the first lens barrel portion 501 and the second lens barrel portion 502 are respectively provided with a plurality of lenses, and the lens closest to the object side in the second lens barrel portion 502 may be completely located in the second lens barrel portion 502 or may protrude from the end surface of the second lens barrel portion 502, so long as the end surface of the lens is ensured not to interfere with the blade 3.

In some embodiments, the outer diameter of the second barrel portion 502 is smaller than the outer diameter of the first barrel portion 501, i.e., the barrel of the optical lens 500 is in a shape with a small top and a large bottom. In these embodiments, the iris apparatus 100 can be disposed with the full use of the space at the periphery of the second barrel portion 502, which is advantageous in reducing the radial size of the iris optical lens.

The first barrel portion 501 and the second barrel portion 502 may be of an integral structure, as shown in fig. 24, that is, the optical lens 500 is an integral optical lens; the first barrel portion 501 and the second barrel portion 502 may be of a split structure, as shown in fig. 19, that is, the optical lens 500 is a split optical lens.

In the embodiment shown in fig. 19, the first barrel portion 501 and the second barrel portion 502 are in a split structure, the second barrel portion 502 is carried on an upper end surface of the first barrel portion 501, and the second barrel portion 502 and the first barrel portion 501 can be adhered by glue. Further, the second barrel portion 502 and the first barrel portion 501 may also be nested to reduce the axial height of the barrel, i.e., the upper end of the first barrel portion 501 extends into the second barrel portion 502.

In some embodiments, as shown in fig. 27-29, the iris apparatus 100 includes a fixing portion 1 and a driving mechanism 2, a light-passing hole 110 is formed in the middle of the fixing portion 1, and a blade 3 is movably disposed on the fixing portion 1, so that an incident hole 30 formed by the blade 3 is located on an object side of the light-passing hole 110. The driving mechanism 2 is configured to drive the blade 3 to rotate to adjust the aperture of the inlet hole 30. The fixing portion 1 forms a space around the circumference of the light passing hole 110 in which the driving mechanism 2 is mounted.

Further, the fixing part 1 comprises a mounting shell 11 and a circuit board 12, a light-passing hole 110 is formed in the middle of the mounting shell 11, and the circuit board 12 and the driving mechanism 2 are arranged on the mounting shell 1 so as to avoid the light-passing hole 110; the blade 3 is movably disposed on the mounting housing 11 such that the incident hole 30 formed by the blade 3 is opposite to the light passing hole 110; the blades 3, the driving mechanism 2, and the circuit board 12 are disposed in the mounting housing 11 in this order along the optical axis direction, so that the axial space of the mounting housing 11 can be fully utilized to dispose each component, and the excessive radial dimension of the iris diaphragm device 100 can be avoided. The circuit board 12 is connected with the driving mechanism 2 to control the driving mechanism 2 to operate.

The bottom surface of the mounting case 11 opposite to the wiring board 12 has a receiving hole for receiving the component on the wiring board 12, so that the component which protrudes from the wiring board 12 and occupies a large space is received in the receiving hole on the mounting case 11, so that the wiring board 12 is closely fitted to the mounting case 11, which is advantageous in reducing the axial dimension of the iris diaphragm device 100. In addition, the components on the circuit board 12 are accommodated in the accommodating holes on the mounting housing 11, so that a certain protection effect can be provided for the components, and the stability of the whole structure can be improved.

According to actual requirements, the accommodating hole of the application can be a through hole with two ends penetrating through or a non-penetrating hole. The receiving hole in the present application may be, but is not limited to: a coil through hole for accommodating the driving coil, a through hole for accommodating the position detection sensor, and a capacitor through hole for accommodating the capacitor.

In some preferred embodiments, the circuit board 12 and the blade 3 are respectively disposed on two sides of the mounting housing 11, and the circuit board 12 is attached to the bottom surface of the mounting housing 11, so that interference between the circuit board 12 and the blade 3 can be avoided, and the space of the mounting housing 11 can be fully utilized.

Further, the driving mechanism 2 includes a driving member 21, a driving coil 22, and a driving magnet 23, which are sequentially disposed in the optical axis direction. The driving piece 21 is movably arranged between the mounting shell 11 and the blade 3 and is configured to drive the blade 3 to rotate when moving; a driving magnet 23 is provided on the bottom surface of the driving member 21, and a driving coil 22 is provided on the mounting housing 11 or the circuit board 12, so that the driving member 21 is displaced to rotate the blade 3 by the interaction of the driving coil 22 and the driving magnet 23. The drive coil 22 is electrically connected to the wiring board 12 such that power can be supplied to the drive coil 22 through the wiring board 12.

In some embodiments, the wiring board 12 and the driving member 21 are disposed on both sides of the mounting housing 11 in the optical axis direction, respectively, the mounting housing 11 has a coil through hole 111 on the bottom surface for accommodating the driving coil 22, and the driving coil 22 is disposed on the wiring board 12 and extends from the wiring board 12 into the coil through hole 111 such that the driving coil 22 is opposed to the driving magnet 23 disposed on the bottom surface of the driving member 21. The driving coil 22 is disposed in the coil through hole 111, so that the size of the iris diaphragm device 100 can be reduced while saving the internal space, and the driving coil 22 can be protected and positioned.

Further, the driving coil 22 is provided at a position of the wiring board 12 near the edge, and the side face of the coil through hole 111 communicates with the outside. Since the iris diaphragm device 100 of the present application is small in overall size, in order to simplify the structure of the installation housing 11, the side surface of the coil through hole 111 may be provided in an open structure, which may also reduce the overall weight of the installation housing 11.

Further, the driving member 21 has a mounting groove 214 on a bottom surface opposite to the driving coil 22, and the driving magnet 23 is fitted into the mounting groove 214. The driving magnet 23 is inserted into the mounting groove 214, so that the space of the driving member 21 is fully utilized, the volume of the iris device 100 is further reduced, the structural compactness of the iris device 100 is improved, and the mounting stability of the driving magnet 23 is also improved. The driving magnet 23 and the driving member 21 may be integrally formed, or the driving magnet 23 may be mounted in a mounting groove 214 reserved in the driving member 21 through a subsequent assembly process.

In some embodiments, the driving member 21 has a circular ring shape, and the driving member 21 is movably disposed on the mounting housing 11.

In some embodiments, the driver 21 is provided with a section of the driver magnet 23 that extends radially outward to form an enlarged end 215 to provide sufficient space to embed the driver magnet 23. Further, in view of saving the internal space, the mounting housing 11 forms a relief opening 117 opposite to the enlarged end 215, and the width of the relief opening 117 is larger than the width of the enlarged end 215, so that the enlarged end 215 can rotate in the relief opening 117 when the driving member 21 rotates. The provision of the relief opening 117 is advantageous in reducing the size of the iris apparatus 100, avoiding interference with the mounting housing 11 when the driving member 21 rotates, and in addition, limiting the rotation angle of the driving member 21.

Further, there are a plurality of blades 3, one end of each blade 3 is rotatably connected to the mounting housing 11, and the other end extends above the light passing hole 110, so that the plurality of blades 3 in combination define an incident hole 30 with an adjustable aperture, and each blade 3 is connected to the driving member 21 such that the driving member 21 rotates to rotate each blade 3 to adjust the aperture of the incident hole 30.

Further, the vane 3 has a positioning hole 31, and the mounting housing 11 has a positioning post 113 that mates with the positioning hole 31, and the vane 3 rotates around the positioning post 113. That is, the vane 3 and the mounting housing 11 are rotatably connected through the positioning hole 31 and the positioning post 113. The blade 3 is also provided with a movable hole 32, the driving piece 21 is provided with a limit column 213 which is in sliding fit with the movable hole 32, the movable hole 32 is provided with a travel space for the limit column 213 to slide, and when the driving piece 21 rotates, the limit column 213 moves in the movable hole 32 and drives the blade 3 to rotate. It should be noted that the stroke space of the movable hole 32 may limit the rotation angle of the blade 3, so as to ensure that the blade 3 rotates between a preset angle range.

In some embodiments, as shown in fig. 37, the positioning posts 113 are located at the edge of the mounting housing 11 near the outside.

In other embodiments, as shown in FIG. 39, the positioning posts 113 are located on the edge of the mounting housing 11 near the light passing aperture 110.

The position that reference column 113 set up is different for spacing post 213 also is different in the setting position on driving piece 21, and then makes the shape of blade 3 also different, and the shape of blade 3 can influence the adjustable scope of entrance hole 30 aperture, in practical application, can select the blade 3 of different shapes according to actual demand, cooperates reference column 113 and the rotation of spacing post 213 realization blade 3 that sets up in different positions simultaneously.

Further, the positioning holes 31 are circumferentially provided at equal intervals on the mounting housing 11, the stopper posts 213 are circumferentially provided at equal intervals on the driver 21, and the blades 3 are rotationally symmetrically provided.

Further, the iris apparatus 100 includes an even number of blades 3, each blade 3 being alternately disposed up and down along the circumference, and an incident hole 30 having an adjustable aperture being formed in the middle of each blade 3. When the aperture of the inlet hole 30 is increased from small to large, the upper and lower blades 3 are gradually laminated. In a specific embodiment, the iris diaphragm device 100 includes six blades 3.

Further, a first protrusion 116 and a second protrusion 218 are respectively provided near the positioning post 113 and the limiting post 213, which are engaged with the upper blade 3, and the first protrusion 116 and the second protrusion 218 are used for holding the upper blade 3 above the lower blade 3, so as to reduce friction between the upper and lower blades 3 when the blades 3 rotate.

In some embodiments, the circuit board 12 is a flexible printed circuit board (FPC flexible board), and by fitting the bottom surface of the mounting housing 11, the flatness of the circuit board 12 can be ensured. Further, the circuit board 12 may be adhesively fixed to the bottom surface of the mounting case 11 to increase the flatness of the circuit board 12.

In some embodiments, the fixing portion 1 further includes a mounting plate 13, the mounting plate 13 being provided on a side of the mounting housing 11 where the wiring board 12 is mounted, and holding the wiring board 12 between the mounting plate 13 and the mounting housing 11. The mounting board 13 serves to protect the wiring board 12 and also to increase the flatness of the wiring board 12. The wiring board 12 and the mounting board 13 may be bonded and fixed.

In one embodiment, the mounting plate 13 is a metal material that is adapted to be attracted to a magnet such that the mounting plate 13 interacts with the magnet on the driver 21 to facilitate retention of the driver 21 to the mounting housing 11 to improve the structural stability of the iris apparatus 100. In some embodiments, when balls are provided between the driver 21 and the mounting housing 11 to reduce friction, the interaction force between the mounting plate 13 and the driver 21 also helps to trap the balls between the driver 21 and the mounting housing 11. It should be noted that the interaction between the mounting plate 13 and the magnets on the driving member 21 is in the axial direction, and the rotation direction of the driving member 21 is perpendicular to the axial direction, so that the interaction between the mounting plate 13 and the magnets on the driving member 21 does not affect the rotation of the driving member 21.

Further, in order to avoid that the rotation of the driving element 21 is affected by too much force between the mounting plate 13 and the magnet on the driving element 21, the mounting plate 13 is in a hollow structure, and the interaction between the mounting plate 13 and the magnet on the driving element 21 is reduced by reducing the amount of metal material on the mounting plate 13.

Further, the mounting board 13 is in a split structure, that is, the mounting board 13 includes a plurality of mounting board subsections 131 separated from each other, and each mounting board subsection 131 is arranged at one side of the circuit board 12 at intervals, so that the flatness of each area of the circuit board 12 can be ensured, and the size of the mounting board 13 can be reduced.

Further, as shown in fig. 29, the positioning member 151 is disposed on the bottom surface of the mounting housing 11, and the circuit board positioning through hole 152 and the mounting board positioning through hole 153 are disposed at the positions corresponding to the circuit board 12 and the mounting board 13, respectively, so that the mounting position of the circuit board 12 can be positioned by the cooperation of the circuit board positioning through hole 152 and the positioning member 151, and the mounting position of the mounting board 13 can be positioned by the cooperation of the mounting board positioning through hole 153 and the positioning member 151, so that the assembly process is more convenient.

In some embodiments, the fixing portion 1 further includes a locking piece 14, and the locking piece 14 is disposed on the mounting housing 11 so as to avoid the light-transmitting hole 110, and holds the blade 3 between the locking piece 14 and the mounting housing 11. The provision of the locking piece 14 contributes to an improvement in the overall stability of the iris apparatus 100, and also protects the internal components. Further, a black object is provided on the object side surface of the locking piece 14 for preventing reflection of light. Further, the mounting case 11 has a positioning block 118 on a surface opposite to the locking piece 14, the locking piece 14 is formed with a positioning groove 142 at a position corresponding to the positioning block 118, and the locking piece 14 is held at a preset position of the mounting case 11 by cooperation of the positioning block 118 and the positioning groove 142.

Further, the locking piece 14 is provided with a avoiding hole 141 for preventing interference with the positioning post 113 and the limiting post 213. In order to make the structure of the iris apparatus 100 as compact as possible, it is necessary to reduce the gap between the lock tab 14 and the blade 3, and in order to improve the mounting stability of the blade 3 and the positioning posts 113 and the stopper posts 213, the heights of the positioning posts 113 and the stopper posts 213 should not be too low, and in view of the above, the lock tab 14 is provided with the avoiding hole, so that the heights of the positioning posts 113 and the stopper posts 213 may exceed the blade 3, and the overall thickness of the iris apparatus 100 may be prevented from being increased.

The circuit board 12, the mounting plate 13, and the locking piece 14 may be of a circular ring configuration so as to be integrally provided on the mounting housing 11 around the light passing hole 110, and the aperture of the center of the circular ring is preferably not smaller than the maximum aperture of the incident hole 30, so that the light flux is determined by the aperture of the incident hole 30. The circuit board 12, the mounting plate 13 and the locking tab 14 may also be designed as separate parts, so that they are arranged on the mounting housing 11 in circumferential sections.

In some embodiments, the bottom surface of the driving member 21 has a first part 211, the mounting housing 11 has a second part 112 opposite to the first part 211, and the driving member 21 and the mounting housing 11 are contacted in the optical axis direction by the first part 211 and the second part 112. When the driving member 21 rotates relative to the mounting housing 11, the friction force between the driving member 21 and the mounting housing 11 increases the requirement for driving force, and by reducing the contact area between the driving member 21 and the mounting housing 11, the friction force between the driving member 21 and the mounting housing 11 in this embodiment can be reduced when the driving member 21 moves relative to the mounting housing 11 due to the contact between the first member 211 and the second member 112.

Further, the first member 211 and the second member 112 are a boss and a chute, respectively, in which the boss slides when the driving member 21 rotates relative to the mounting housing 11. The design of boss and spout can ensure not increasing under the condition of whole thickness, reduces the area of contact between driving piece 21 and the installation casing 11, has realized the make full use of inner space, moreover through the cooperation of boss and spout, also can carry out spacing to the displacement of driving piece 21 to ensure that driving piece 21 rotates along predetermineeing the direction in predetermineeing the angle range.

In some embodiments, the first component 211 is a boss and the second component 112 is a chute; in other embodiments, the first member 211 is a chute and the second member 112 is a boss. In the embodiment shown in fig. 15, the first part 211 is a boss, the second part 112 is a chute, and the end of the first part 211 facing the second part 112 is tapered to further reduce the friction between the first part 211 and the second part 112.

In some variant embodiments, the first part 211 and the second part 112 are respectively a ball and a ball groove, in which the ball is adapted to roll, the ball groove being able to limit the displacement of the ball, so as to ensure that the driving member 21 rotates in a preset direction within a preset angular range.

Further, the first member 211 and the second member 112 are at least two pairs and are equally spaced along the circumference of the light passing hole 110 to ensure the stability of the support.

In some embodiments, the iris apparatus 100 further includes a position detecting unit 4 for detecting a rotational position of the driving member 21, the position detecting unit 4 includes a position detecting magnet 41 disposed on the driving member 21 and a position detecting sensor 42 disposed opposite to the position detecting magnet 41, when the driving member 21 rotates, a relative position between the position detecting magnet 41 and the position detecting sensor 42 changes, and a position of the driving member 21 can be determined according to a magnetic field strength of the position detecting magnet 41 detected by the position detecting sensor 42, and then a current of the driving coil 22 is adjusted to move the driving member 21 to a desired position.

Further, the position detection sensor 42 is provided on the wiring board 12 and electrically connected to the wiring board 12, and the mounting case 11 is provided with a sensor through hole 115 opposed to the position detection sensor 42, and the position detection sensor 42 extends into the sensor through hole 115.

Further, a position detection groove 217 is provided on the bottom surface of the driver 21, and the position detection magnet 41 is fitted into the position detection groove 217.

Further, the driving member 21 is further provided with a weight 212 for balancing the center of gravity of the driving member 21. The bottom surface of the driving member 21 has a weight groove 216 for placing the weight 212 so that the weight 212 is embedded in the driving member 21 to save the inner space of the iris apparatus 100.

In some embodiments, the bottom surface of the driving member 21 is symmetrically provided with two sets of driving magnets 23, and correspondingly, the circuit board 12 is symmetrically provided with two sets of driving coils 22. The weight 212 is symmetrically disposed between the two sets of driving magnets 23 with respect to the position detecting magnet 41 to ensure that the center of gravity of the driving member 21 is stable.

In some embodiments, the weight 212 is a magnet of the same size as the position sensing magnet 41.

In addition to the driving coil 22 and the position detecting sensor 42, other electronic components, such as a capacitor 121, may be disposed on the circuit board 12, and the bottom surface of the mounting housing 11 has a plurality of receiving holes, such as a capacitor through hole 114, corresponding to the respective electronic components, so that when the circuit board 12 is disposed on the bottom surface of the mounting housing 11, the electronic components protruding thereon are respectively received in the receiving holes of the mounting housing 11, so that the circuit board 12 is attached to the bottom surface of the mounting housing 11, which improves the space utilization rate inside the iris diaphragm device 100, and also protects the components to a certain extent.

The height of the iris diaphragm assembly provided by the application can be not more than 0.18cm, and the iris diaphragm assembly can cater to the development trend of miniaturization of the current camera module.

The optical lens 500 has a diaphragm bearing portion 503 on the peripheral side, and the variable diaphragm device 100 is supported by the diaphragm bearing portion 503. In other words, the portion of the optical lens 500 for carrying the iris apparatus 100 is located on the peripheral side of the optical lens 500, and this arrangement is advantageous in that the space on the peripheral side of the optical lens 500 is fully utilized, thereby reducing the axial dimension of the iris optical lens.

In some embodiments, the bottom surface of the iris apparatus 100 bears against the aperture bearing portion 503, as shown in fig. 24, that is, the aperture bearing portion 503 is outside the light passing hole 110. By bringing the bottom surface of the iris apparatus 100 into contact with the diaphragm carrying portion 503, the upper end of the optical lens 500 can be effectively accommodated in the light passing hole 110, and the space on the peripheral side of the optical lens 500 can be fully utilized. Further, the bottom surface of the mounting housing 11 extends downward along the edge of the light passing hole 110 to form a lens bearing portion 119, and the lens bearing portion 119 bears against the diaphragm bearing portion 503.

In other embodiments, the inner wall of the light passing hole 110 of the iris apparatus 100 is supported by the aperture bearing portion 503, as shown in fig. 19 and 20, that is, the aperture bearing portion 503 is located in the light passing hole 110, so that the radial space in the light passing hole 110 can be fully utilized, which is beneficial to reducing the axial dimension of the iris optical lens. Further, the inner wall of the light passing hole 110 has a bearing surface extending obliquely outward from the object side to the image side, the aperture bearing portion 503 has an inclined bearing surface corresponding to the bearing surface, and the bearing surface are arranged to be inclined, which is beneficial to increasing the contact area between the variable aperture device 100 and the optical lens 500, and further increasing the connection stability.

In other embodiments, the bottom surface of the iris apparatus 100 and the inner wall of the light-passing hole 110 thereof are supported by the aperture bearing portion 503, that is, a portion of the aperture bearing portion 503 extends into the light-passing hole 110, and another portion is located outside the light-passing hole 110, so that the contact area between the iris apparatus 100 and the optical lens 500 can be increased, and the connection stability can be increased. And meanwhile, the peripheral space of the optical lens can be fully utilized, and the axial size is reduced.

Glue may be provided between the iris apparatus 100 and the diaphragm carrying portion 503 for bonding. In order to improve the bonding stability, the bonding surfaces of the diaphragm bearing portion 503 and the iris diaphragm device 100 have a certain roughness, so as to improve the stability during glue bonding.

The aperture carrier 503 may be provided on the side wall of the second lens portion 502, on the side wall of the first lens portion 501, or between the first lens portion 501 and the second lens portion 502.

In some embodiments, the optical lens 500 includes a lens barrel, a plurality of lenses disposed within the lens barrel, and a plurality of lenses disposed on an object side end surface of the lens barrel, and the iris apparatus 100 is disposed on the lens barrel to accommodate the lenses disposed on the end surface of the lens barrel within the light-transmitting hole 110. In these embodiments, the barrel of the optical lens 500 does not extend into the light-passing hole 110, which is advantageous for further reducing the overall volume of the iris apparatus 100. It should be noted that the lens arranged on the object side end face of the lens barrel can be fixed on the end face of the lens barrel through glue. At this time, the diaphragm bearing portion 503 is located at the upper end face of the lens barrel, which is located at the peripheral side of the lens provided on the lens barrel, so that the diaphragm bearing portion 503 is located at the peripheral side of the optical lens 500 as a whole.

In some embodiments, as shown in fig. 22 and 23, the iris-diaphragm optical lens further includes a second optical lens 600, where the second optical lens 600 is disposed on the object side of the iris-diaphragm device 100, that is, the optical lens 500 and the second optical lens 600 are respectively located on two sides of the iris-diaphragm device 100, and the second optical lens 600 and the optical lens 500 together achieve light convergence to complete imaging.

In some embodiments, the second optical lens 600 is disposed on the locking piece 14 of the iris apparatus 100, and the locking piece 14 has a locking piece light-passing hole in the middle, and the second optical lens 600 is opposite to the locking piece light-passing hole. The bottom of the second optical lens 600 may extend into the light-passing hole of the locking piece toward the image side, so as to fully utilize the internal space of the iris apparatus 100 and reduce the overall height of the lens. It should be noted that, when the second optical lens 600 extends toward the image side, it should be ensured that it does not interfere with the blade 3.

Further, the second optical lens 600 includes a third lens barrel 601, a plurality of lenses disposed in the third lens barrel 601, and a second lens connecting portion 602 disposed on an outer wall of the third lens barrel 601, the second lens connecting portion 602 is supported on the locking piece 14, and glue is disposed between the second lens connecting portion 602 and the locking piece 14 for adhesion and fixation. The bonding surfaces of the second lens connecting portion 602 and the locking piece 14 have a certain roughness so as to ensure the bonding stability.

The second optical lens 600 may be fixed to the variable aperture device 100 by glue or other means, and then the variable aperture device 100 to which the second optical lens 600 is fixed is aligned and bonded to the optical lens 500 using an active alignment technique. Or the iris apparatus 100 is adhered and fixed to the optical lens 500, and then the second optical lens 600 is mounted on the iris apparatus 100 by using an active calibration technique to ensure that the iris optical lens can image normally.

The split optical lens has a larger aperture, and can be correspondingly combined with the iris diaphragm device 100, so that the optical lens with a larger aperture parameter adjustment range can be obtained, and better imaging is facilitated.

As shown in fig. 25 and 26, the present application further provides an image capturing module, which includes the aforementioned iris diaphragm optical lens, a motor structure 700 and a photosensitive assembly 800, wherein a lens mounting cavity 701 is provided in the middle of the motor structure 700, the iris diaphragm optical lens is disposed in the lens mounting cavity 701, and the motor structure 700 is configured to drive the iris diaphragm optical lens to move so as to implement an optical anti-shake or auto-focusing function. The photosensitive assembly 800 is disposed on the image side of the iris-diaphragm optical lens for imaging.

The camera module can change the light inlet amount inside the camera module through the iris diaphragm device 100, thereby being suitable for different environments and avoiding the over exposure caused by too enough ambient light or the unclear imaging caused by insufficient ambient light.

It should be noted that the photosensitive center of the photosensitive assembly 800 coincides with the optical axis of the iris optical lens. The light passes through the incident hole 30 formed by the iris device 100, then passes through the optical lens 500, reaches the photosensitive assembly 800, and outputs image information of the subject through the processing of the photosensitive assembly 800.

In the image capturing module provided by the application, the iris diaphragm optical lens is integrally driven by the motor structure 700, so that friction resistance during displacement of the iris diaphragm optical lens is reduced.

In some embodiments, the bottom surface of the iris apparatus 100 is opposite to the upper end surface of the motor structure 700, which is advantageous in preventing external dust from entering the inside of the motor structure 700.

In some embodiments, the side wall of the optical lens 500 has a threaded structure, the inner wall of the lens mounting cavity 701 of the motor structure 700 has a corresponding threaded structure, and the optical lens 500 and the motor structure 700 are connected and fixed by the threaded structure.

In some embodiments, the iris diaphragm device 100 includes a circuit board 12, the circuit board 12 being provided on the mounting housing 11, the circuit board 12 being electrically connected to the driving mechanism 2 for controlling the driving mechanism 2. The wiring board 12 is also electrically connected to the wiring of the motor structure 700 so that the motor structure 700 supplies the current of its operation to the iris diaphragm device 100.

As will be appreciated by those skilled in the art, the motor structure 700 includes a motor movable portion to which the variable aperture optical lens 500 is connected and a motor fixed portion, and a lens mount cavity 701 is formed in the motor movable portion. Further, the bottom surface of the iris diaphragm device 100 is supported against the upper end surface of the motor movable portion, so that when the motor movable portion drives the optical lens 500 to move, the iris diaphragm device 100 is driven to move together, so that the stability of focusing the iris diaphragm optical lens can be ensured, and in addition, external dust can be prevented from entering the lens mounting cavity 701.

The photosensitive assembly 800 includes a photosensitive chip, a second wiring board electrically connected to the photosensitive chip, a color filter disposed between the photosensitive chip and the iris optical lens, and a color filter holder for holding the color filter between the photosensitive chip and the iris optical lens. After the light rays are converged by the iris diaphragm optical lens, the stray light is filtered by the color filter, and then the stray light reaches the photosensitive chip, and the photosensitive chip converts the optical signals into electric signals and transmits the electric signals to the second circuit board.

Specifically, the photosensitive chip is arranged on the upper surface of the second circuit board, and the photosensitive chip is communicated with the second circuit board through a gold wire. The second circuit board is also provided with a plurality of electronic components, such as capacitors, which are arranged around the photosensitive chip. The color filter holder is disposed on the second wiring board so that the photosensitive chip is accommodated in a space formed by the color filter holder and the second wiring board. The color filter is disposed on the color filter holder.

To further reduce the height of the photosensitive assembly 800, the photosensitive assembly 800 may be molded, that is: the photosensitive chip is arranged on the upper surface of the second circuit board, the photosensitive chip is conducted with the second circuit board by utilizing a gold wire, and then the gold wire and the position of the electronic component on the second circuit board are molded by utilizing a molding process, so that the molding seat forms the color filter bracket capable of being provided with the color filter. In this way, the height of the photosensitive assembly 800 can be effectively reduced, and part of electronic components on the photosensitive assembly can be effectively protected, so that the photosensitive assembly is stably connected with the second circuit board.

In one embodiment, as shown, the photosensitive assembly 800 of the camera module is molded. The optical lens 500 is disposed in the lens mounting cavity 701 of the motor structure 700, and an upper end surface of the optical lens 500 extends out of the lens mounting cavity 701, that is, an object side end of the optical lens 500 protrudes out of the motor structure. The iris diaphragm device 100 is supported against the upper surface of the housing of the motor structure 700, and accommodates the portion of the optical lens 500 protruding from the motor structure in the light passing hole 110 thereof such that the blade 3 covers the end surface of the optical lens, and the rotation of the blade 3 is controlled by the driving mechanism 2 to adjust the aperture of the entrance hole 30. The circuit board 12 is electrified with the circuit of the motor structure 700, the circuit of the motor structure 700 is electrified with the second circuit board, and the whole structure of the camera module is electrically connected with an external power supply device through the second circuit board so as to provide current required by the operation of the driving mechanism 2, the motor structure 700 and the photosensitive assembly 800.

The iris diaphragm optical lens of the present application can be assembled into a semi-finished product, and then the whole is assembled on the motor structure 700, and after the assembly, the iris diaphragm device 100 of the iris diaphragm optical lens is supported against the upper surface of the housing of the motor structure 700, so that external dust can be prevented from entering the lens mounting cavity 701, and further reaching the photosensitive assembly 800. The iris diaphragm device 100 accommodates a portion of the optical lens 500 protruding from the motor structure 700 in an inner space thereof, and can effectively protect the optical lens 500 without increasing a height of a module. Further, the wiring board 12 of the iris apparatus 100 may be in communication with the wiring of the motor structure 700, and in particular, the wiring board 12 is connected to the motor movable portion, and resistance generated during movement of the motor movable portion of the iris apparatus 100 may be reduced.

Scheme C: referring to FIGS. 41-52 and reference numerals therefor

The camera module is extremely sensitive to the change of external light in the imaging process, in the bright environment of light, if the light entering the inside of the optical lens is too much, the condition of overexposure can appear, so that the imaged picture is too bright, and in the insufficient environment of light, if the light entering the inside of the optical lens is too little, the imaged picture can be too dark, and the imaging quality is affected. How to control the light entering the camera module according to the shooting environment so that high-quality pictures can be shot in different environments to adapt to complex shooting environments is a technical problem to be solved at present.

In order to effectively solve the influence of external light on imaging of an imaging module, a structure of an iris is provided, the iris is provided with an adjustable clear aperture formed by a plurality of blades, the adjustable clear aperture is arranged at an entrance aperture of an optical lens, the center of the adjustable aperture on the iris is consistent with the center of the entrance aperture of the optical lens, the blades of the iris are controlled to rotate so as to change the diameter of the entrance aperture, the light quantity entering the interior of the optical lens is changed, and the requirements of different environments on shooting light are met.

The present application provides an iris diaphragm 1 having a plurality of long blades, as shown in fig. 41 to 52, the iris diaphragm 1 includes a movable portion 10, a driving assembly 20, a fixed portion 30, a circuit assembly 40, a sensing portion 50, and a holding member 60, the movable portion 10 is disposed inside the fixed portion 30, the movable portion 10 is moved relative to the fixed portion 30 by the action of the driving assembly 20, the circuit assembly 40 is mainly used for supplying current required for the driving assembly 20 to operate so as to ensure the movable portion 10 to move relative to the fixed portion 30, the sensing portion 50 is mainly used for sensing the position of the movable portion 10 so as to ensure that the adjustable aperture of the iris diaphragm 1 is adapted to external light, the holding member 60 is disposed between the movable portion 10 and the fixed portion 30 so as to keep the gap between the movable portion 10 and the fixed portion 30 fixed, and simultaneously, the friction force between the movable portion 10 and the fixed portion 30 can be reduced so as to reduce the requirement for driving force of the iris diaphragm 1, and at the same time, the overall structure of the iris diaphragm 1 is ensured to be compact.

Specifically, as shown in fig. 41 to 43, the movable portion 10 in the present application includes a rotary vane assembly 11, a movable carrier 12 and a light shielding sheet 13, the rotary vane assembly 11 is composed of a plurality of identically or similarly shaped vanes, the rotary vane assembly 11 is disposed on the movable carrier 12, and during the movement of the movable carrier 12, the rotary vane assembly 11 moves correspondingly to form an adjustable light-transmitting hole, the aperture of the light-transmitting hole is h, and the variation range of the aperture is h1-h2. The maximum aperture h1 corresponds to a maximum aperture R of the iris 1, the minimum aperture h2 corresponds to a minimum aperture R of the iris 1, and the aperture of the light passing hole is correspondingly adjusted according to the aperture requirement of the imaging module for imaging, so as to meet the imaging of the imaging module in different environments. The light shielding plate 13 is disposed below the rotary blade assembly 11, and is mainly used for shielding the light transmitted through the slit of the rotary blade assembly 11 to prevent stray light generated during the imaging process. In a specific embodiment, the light shielding sheet 13 may be provided with a film coating layer for absorbing light, such as an antireflection film, wherein the low refractive index material layer and the high refractive index material layer are alternately arranged multiple times, for example, chromium oxide and silicon dioxide are respectively selected as materials, and the corresponding thicknesses are 30 nm-500 nm and 10 nm-20 nm for absorbing light.

In the present application, the iris diaphragm 1 rotates the blades of the rotary blade assembly 11 through the movable portion 10 to form an adjustable light-passing hole, and as shown in fig. 47 to 48, the rotary blade assembly 11 is formed by overlapping a plurality of elongated blades having the same or similar shape. In some alternative embodiments, the number of blades of the rotary blade assembly 11 is 6, namely, a first blade 111, a second blade 112, a third blade 113, a fourth blade 114, a fifth blade 115 and a sixth blade 116, wherein the shapes of the first to sixth blades are the same or similar, and the first blade 111 is taken as an example to describe the shape of each long blade, the first blade 111 has a fixed end 111A, a movable end 111B and a avoiding groove 111C, the fixed end 111A has a positioning hole, so that the fixed end 111A of the first blade 111 is fixed to the fixed part 30 through the positioning hole, the movable end 111B has a movable hole, and the positioning hole and the movable hole are separately arranged at two ends of the first blade 111.

The movable hole has a certain length, and the long side extending direction of the movable hole extends towards the optical axis direction (the direction of the optical axis is perpendicular to the extending direction), so that the movable end 111B of the first blade 111 is connected to the movable part 10, and the first blade 111 is driven by the movable part 10 and moves within the stroke limited by the movable hole, and by setting both ends as fulcrums, the distance between the movable end 111B and the fixed end 111A is increased, so as to improve the aperture variation range. The distance between the positioning hole and the center of the movable hole is d1, and the distance between the fixed end and the movable end is d2, wherein 1> d1/d2>2/3. The aperture of the adjustable light-transmitting hole is h, wherein 1/3>h/d1 is more than 1/5. At least one escape groove 111C is provided at a middle position of the first blade 111 away from the optical axis side, and a movable end 113B (not shown) of an adjacent long blade 113 of the first blade 111 is provided at the escape groove 111C of the first blade 111. In some alternative embodiments of the present application, the avoidance groove 111C is located on a side of the first blade 111 relatively close to the fixed end 111A, and is recessed inward along one of the sides of the first blade 111 to avoid a certain space, so as to ensure normal movement of other blades, especially avoid a driving rod of a movable part connected to the movable end of the other blade.

Further, the connecting line between the positioning hole and the center of the movable hole passes through the light passing hole. The central connecting line of the locating hole and the movable hole corresponding to each long blade forms a polygon, and the polygon is always positioned in the light-passing hole in the changing process of the light-passing hole. The centers of the movable holes of the long blades are connected with each other to form an inner regular polygon, and the inner regular polygon covers the light transmission hole. Further, each long blade (111, 112, 113, 114, 115, 116) has a convex arc-shaped outer side on a side away from the optical axis, and at least one escape groove (111C, 112C, 113C, 114C, 115C, 116C) is provided on the outer side of each long blade (111, 112, 113, 114, 115, 116). The relief groove is configured to be recessed inwardly along the outer side to provide a space, and in one particular embodiment, the relief groove (111C, 112C, 113C, 114C, 115C, 116C) is approximately semi-circular in shape to reserve the active space of each drive rod.

Specifically, the second blade 112 has a fixed end 112A, a movable end 112B, and a relief groove 112C, the third blade 113 has a fixed end 113A, a movable end 113B, and a relief groove 113C, the fourth blade 114 has a fixed end 114A, a movable end 114B, and a relief groove 114C, the fifth blade 115 has a fixed end 115A, a movable end 115B, and a relief groove 115C, and the sixth blade 116 has a fixed end 116A, a movable end 116B, and a relief groove 116C. Wherein, the fixed end of each blade has a positioning hole, the movable end of each blade has a movable hole, the side of each blade has a avoiding groove, the blades overlap each other, one stacking mode is that the first blade 111 is disposed on the lower surface of the second blade 112, the second blade 112 is disposed on the lower surface of the third blade 113, the third blade 113 is disposed on the lower surface of the fourth blade 114, and the fifth blade 115 is disposed on the lower surface of the sixth blade 116 to form the rotary blade assembly 11. The sixth blade 116 is disposed at the uppermost part of the rotary blade assembly 11, and an adjustable light hole is formed in the middle of the rotary blade assembly 11, and the size of the light hole can be adjusted correspondingly with the different positions of each blade. In an alternative embodiment of the present application, the first blade 111 and the fourth blade 114 are disposed on the same plane on the bottommost side, the second blade 112 and the fifth blade 115 are disposed on the same plane above the first blade 111 and the fourth blade 114, the third blade 113 and the sixth blade 116 are disposed on the same plane above the first blade 111 and the fourth blade 114, and the third blade 113 and the sixth blade 116 are disposed on the topmost side, in other words, each blade, except for the axially symmetrically disposed adjacent blades, has a minimum stacking gap between the two blades, and has a relatively larger stacking gap or is spaced by at least two blades.

Further, the driving rod (1231, 1232, 1233, 1234, 1245, 1246) adapted to at least one adjacent stacked long blade of each long blade (111, 112, 113, 114, 115, 116) is disposed in the region of the escape groove (111C, 112C, 113C, 114C, 115C, 116C). For example, the driving rod 1232 adapted to the blades 112 is disposed in the escape groove region of the long blades 116 where the long blades 112 are adjacently stacked.

In the application, the long blades are stacked and an adjustable light-transmitting hole is formed around the middle of the long blade group, and the blades are stacked and arranged in a mode that the blades are easy to interfere with each other in the moving process of the blades. Through set up on each blade and dodge the groove to dodge the movable hole and the actuating lever's when opening the blade and remove the motion scope, with the problem of interference when solving each blade motion, the length of the movable hole of this adjacent blade of preference is less than or equal to this maximum diameter of dodging the groove.

In a specific embodiment, since the blade needs to be subjected to multiple position adjustments, in order to ensure mechanical reliability of the blade during adjustment, the blade needs to consider a multi-layer design manner, such as a 2-3-layer design, so that movements among the layers of the blade do not affect each other. In order to reduce the overall thickness of the rotary vane assembly 11 and to ensure that the vanes do not deform, the thickness of each vane is not less than 0.02mm, the size of the adjustable light passing hole formed by the rotary vane assembly 11 is related to the position of each vane, the aperture of the light passing hole is at most h1 when the movable hole on the movable end of the rotary vane assembly 11 is at maximum stroke, and the aperture of the light passing hole is at least h2 when the movable hole on the movable end of the rotary vane assembly 11 is at minimum stroke. Specifically, the maximum aperture h1 of the light-passing hole corresponds to the maximum aperture R of the iris 1, the minimum aperture h2 of the light-passing hole corresponds to the minimum aperture R of the iris 1, and the aperture of the iris 1 can be changed within R-R according to the change of the external environment during photographing.

In order to ensure that the aperture variation range of the iris diaphragm 1 is as large as possible in the present application, the length of each blade is designed to be as long as possible, and the movable end and the fixed end of each blade are respectively positioned at both sides of the through hole formed by the rotary blade assembly 11 in the present application, compared to the conventional design in which the movable end and the fixed end are positioned at the same side of the light passing hole. Wherein, to avoid ambiguity, the movable end and the fixed end are located at two sides of the through hole formed by the rotary blade 11, which means that the included angle formed by the movable end and the fixed end and the optical axis is not less than 90 degrees. Meanwhile, as the design of the iris diaphragm blades is longer, the blades are arranged in the same plane when viewed along the projection angle of the optical axis direction.

As shown in fig. 44 to 46 and 52, the movable part 10 of the present application further includes a movable carrier 12, where the movable carrier 12 is mainly used to drive the rotary vane assembly 11 to move so as to change the clear aperture formed by the rotary vane assembly 11, and the movable carrier 12 is a plastic part formed by injection molding of a metal insert 121, and the metal insert 121 inside the movable carrier 12 is used to enhance the strength of the plastic part and ensure that the movable carrier 12 can be as thin as possible. The movable carrier 12 has a plurality of extension portions 122, the extension portions 122 extend outwards along the main body portion of the movable carrier 12 towards the plane direction perpendicular to the optical axis, and a magnet mounting position 126 is formed on the lower surface of the extension portions 122, in some alternative embodiments, the magnet mounting position 126 is a magnet mounting groove integrally formed with the extension portions 122, the magnet mounting position 126 can also be reworked after the extension portions 126 are formed, and corresponding metal inserts 121 are correspondingly arranged at the positions of the magnet mounting position 126 so as to enhance the strength of the magnet mounting position 126 and ensure the light and thin of the local magnet mounting position. The movable carrier 12 further includes at least one driving rod 123, at least one second ball groove 124, and at least one position detecting groove 125. In an alternative embodiment of the present application, the number of the driving rods 123 is 6, and each driving rod 123 is connected to the movable end of the rotary vane assembly 11, and further, each driving rod 123 is disposed in a movable hole of the movable end of each vane and moves within a movable stroke defined by the movable hole. The second ball grooves 124 are located on the lower surface of the movable carrier 12, and in an alternative embodiment of the present application, the movable carrier 12 has more than three second ball grooves 124, specifically 6 second ball grooves, to ensure the flatness of the installation of the movable portion 10 and the fixed portion 30. The position sensor 125 is disposed in a recess from the lower surface of the movable carrier 12 for mounting and detecting the position of the movable carrier 12.

In a specific embodiment, as shown in fig. 43 and 44, the driving rod 123 on the movable carrier 12 is mainly used for being connected with the movable hole of the movable end of the blade of the rotary blade assembly 11, the driving rod 123 is integrally formed by extending from the upper surface of the carrier 12, the driving rod 123 is in a small cylindrical structure, one end of the driving rod 123 is fixed on the movable carrier 12, the other end of the driving rod is a free end, and the free end of the driving rod 123 extends upwards from the surface of the movable carrier 12 and passes through the movable hole on the movable end of the blade. The driving rod 123 moves within the stroke limited by the movable hole on the movable end of the blade, and drives the blade to move correspondingly. Further, the number of the driving rods 123 on the movable carrier 12 is plural, and in a specific embodiment, the number of the driving rods 123 is identical to the number of the rotating blades 12, and in the present application, the number of the rotating blades is six, so that the number of the driving rods 123 is six, and the driving rods 123 are uniformly arranged along the upper surface of the light passing holes of the movable carrier 12.

In the specific embodiment, as shown in fig. 44, along the outer diameter of the light passing hole, a first driving rod 1231, a second driving rod 1232, a third driving rod 1233, a fourth driving rod 1234, a fifth driving rod 1235 and a sixth driving rod 1236 are sequentially arranged, wherein the first driving rod 1231 is disposed in the movable hole on the movable end 111B of the first blade, the second driving rod 1232 is disposed in the movable hole on the movable end 112B of the second blade, and the second driving rod 1232 is disposed in the movable hole on the movable end 116B of the sixth blade in this order until the sixth driving rod 1236 is disposed in the movable hole on the movable end 116B of the sixth blade, and when the driving rod 123 moves along with the movable carrier 123, the blades connected thereto are driven to move, thereby realizing adjustment of the positions of the respective blades to change the diameter of the light passing hole formed by the rotary blade assembly 11. The number of the driving rods 123 on the movable carrier 12 may be plural, and the number of the driving rods 123 may be the same as the number of the rotary blade assemblies 11, and in other embodiments, if the number of the rotary blade assemblies 11 is eight, the number of the driving rods 123 on the movable carrier 12 is eight, and the number of the driving rods 123 is not limited to the above example, and the number of the driving rods 123 on the movable carrier 12 is set according to the specific requirement of the iris diaphragm 1, which will not be described herein correspondingly.

In the present application, as shown in fig. 46, the movable carrier 12 is mainly accommodated in the fixed part 30, the movable carrier 12 is mainly moved with respect to the fixed part 30 while the movable stroke of the movable carrier 12 is limited to the inner groove of the fixed part 30, and in a specific embodiment, the movable carrier 12 is rotated with respect to the fixed part 30 in the direction around the optical axis by an angle of ± 6 °. The fixing portion 30 includes a fixing base 31, a housing 32, and a mounting plate 33. The housing 32 is disposed above the fixed base 31 and forms a receiving space with the fixed base 31, and the receiving space receives the movable carrier 12 therein to ensure that the movable carrier 12 moves in the receiving space when moving, so as to protect the movable carrier 12. The mounting plate 33 is disposed on the lower end surface of the fixing base 31, and is mainly used for ensuring the flatness of the lower surface of the fixing base 31, in the present application, the iris diaphragm 1 is mainly used for being disposed at the light entrance hole of the optical lens, in order to control the light entering amount of the optical lens end, the lower surface of the fixing base 31 is mainly used for adhering and fixing the optical lens, and in order to further reduce the height of the camera module, the iris diaphragm 1 is mainly disposed at the shoulder position of the optical lens, so that the higher the flatness of the lower surface of the fixing base 31 is, the more stable the adhesion between the iris diaphragm 1 and the optical lens is.

Further, as shown in fig. 43 to 46, the fixed base 31 includes the base bottom 311, a base side wall 312 and a fixing rod 313, wherein the base side wall 312 is integrally formed with the base bottom 311, and the base side wall 312 and the base bottom 311 form a receiving space of the movable carrier 12. Wherein, the base bottom surface 311 has a light-passing hole 3111, a coil mounting position 3112, a first ball groove 3113, a sensor through hole 3114, a bottom surface through hole 3116 and a magnet mounting position 3117, the light-passing hole 3111 is mainly used for passing light, and the center position of the light-passing hole 3111 is consistent with the center position of the iris 1; the coil mounting positions 3112 are disposed on the side of the base bottom surface 311 close to the movable carrier 12, the number of the coil mounting positions 3112 being plural; the first ball grooves 3113 are disposed on the upper surface of the base bottom 311, and in an alternative embodiment of the application, the base bottom 311 has three or more first ball grooves 3113, specifically 6, and the first ball grooves 3113 on the base bottom 311 correspond to the number and positions of the second ball grooves 124 on the movable carrier 12.

Wherein the first ball groove 3113 and the second ball groove 124 form a moving track of the movable carrier 12, specifically, in the present application, the movable carrier 12 mainly rotates relative to the fixed base 31, so the first ball groove 3113 and the second ball groove 124 are arc-shaped grooves to ensure the rotation of the movable carrier 12; the sensor through hole 3114 and the controller mount 3115 are formed from a recess of the bottom surface 311 of the base, and the bottom surface through hole 3116 is mainly used for disposing signal detecting elements of the iris 1, such as a position sensor or a controller; the magnet mounting position 3117 is mainly used for providing a magnet, the second ball groove 124 on the movable carrier 12 and the first ball groove 3113 on the base bottom surface 311 of the fixed base 31 form a moving track of the iris diaphragm 1, in order to maintain stability of the track thereof while ensuring that the movable carrier 12 is held inside the fixed base 31, the stability of the track thereof is maintained by the magnet structure so that the movable carrier 12 rotates in a predetermined direction with respect to the fixed base 31.

Further, as shown in fig. 52, in order to enhance the strength of the fixed base 31, a metal part 3118 is further molded inside the base bottom 311, where the metal part 3118 is integrally molded with the fixed base 31, in a specific embodiment, the metal part 3118 molded inside the base bottom 311 of the fixed base 31 may also perform a corresponding circuit conducting function, and a part of the structure of the metal part 3118 is exposed on the base bottom 311, and the exposed part is conducted with the circuit assembly 40 in the present application to provide the current required for the operation of a part of the components on the fixed base 31.

In the present application, as shown in fig. 44, the fixed base 31 further has a base side wall 312, the base side wall 312 is formed by extending upward from the base bottom surface 311, the base side wall 312 itself has a side protrusion 3121 and a movable portion opening 3122, the side protrusion 3121 extends from the base side wall 312 along the optical axis direction, the plurality of side protrusions 3122 are uniformly disposed on the base side wall 312, wherein a movable portion opening 3122 is formed between two adjacent side protrusions 3121, the movable portion opening 3122 is mainly used for accommodating the extension portion 122 on the movable carrier 12, and the extension portion 122 moves in the space formed by the movable portion opening 3122 to limit the movement travel of the extension portion 122. The number of side protrusions 3121 on the base side wall 312 may be plural, in a specific embodiment, the number of side protrusions 3121 is identical to the number of the rotating blade assembly 11, the number of side protrusions 3121 is six, the number of movable part openings 3122 formed is six, the six extension parts 122 of the movable carrier 12 are respectively accommodated in the movable part openings 3122 formed on the base side wall 312, and since the movable carrier 12 is integrally formed with the extension parts 122, the movement stroke of the extension parts 122 is limited by the movable part openings 3122 formed on the base side wall 312, and in the present application, the rotatable angle of the extension parts 122 with respect to the side wall protrusions 3121 is ±6°, the rotatable angle of the movable carrier 12 with respect to the fixed base 31 is ±6°, and the movement stroke of the movable carrier 12 is limited by the structure of the side wall protrusions 312.

In a specific embodiment, as shown in fig. 47 to 48, each blade fixing end of the rotary blade assembly 11 is fixedly connected to the fixing base 31, each blade fixing end of the rotary blade assembly 11 has a positioning hole, the positioning hole is mainly used for being connected to the fixing base 31, the fixing base 31 is in a fixed state during the moving process of the rotary blade assembly 11, and each blade fixing end of the rotary blade assembly 11 is connected to the fixing base 31, so that the movable end of each blade of the rotary blade assembly 11 moves relative to the fixing base 31. Wherein, at least one fixing rod 313 is provided on the fixing base 31, the fixing rod 313 is disposed on the upper surface of the side protrusion 3121, the fixing rod 313 is a small cylinder formed by extending upward from the upper surface of the side protrusion 3121, one end of the fixing rod 313 is fixed on the upper surface of the side protrusion 3121, the other end is a free end, and the free end of the fixing rod 313 extends upward from the upper surface of the side protrusion 3121 and passes through the positioning hole on the fixing end of each blade. The fixing lever 313 is provided to be fixed to a positioning hole on the fixing end of each blade, and rotates with the fixing lever 313 as a fixing point. The diameter of each blade fixing hole is greater than or equal to the diameter of the driving rod 131, and in a specific embodiment, the diameter of the fixing rod 313 is greater than the diameter of the positioning hole on each blade fixing end, so that the fixing end of the rotary blade assembly 11 is fixed to the fixing base 31 by the fixing rod 313 on the fixing base 31 to form a rotation fulcrum of the rotary blade assembly 11.

As shown in fig. 46, further, the number of the fixing bars 313 is plural, in a specific embodiment, the number of the fixing bars 313 is identical to the number of the rotary vane assemblies 11, in the present application, the number of the rotary vane assemblies 11 is six, the number of the fixing bars 313 is six, which are respectively a first fixing bar 3131, a second fixing bar 3132, a third fixing bar 3133, a fourth fixing bar 3134, a fifth fixing bar 3135 and a sixth fixing bar 3136, the first fixing bar 3131 is fixed with the positioning hole on the first vane fixing end 111A, the second fixing bar 3132 is fixed with the positioning hole on the second vane fixing end 112A, and the arrangement is according to this order until the sixth fixing bar 1336 is fixed with the positioning hole on the sixth vane fixing end 116A. According to the above description, the fixed end of the rotary vane assembly 11 is fixedly connected with the fixed rod 313 on the fixed base 31, the movable end of the rotary vane assembly 11 is movably connected with the driving rod 123 on the movable carrier 12, the rotary vane assembly 11 is overlapped to form the clear aperture of the iris diaphragm 1, and in the process of moving the movable carrier 12 relative to the fixed base 31, the movable end of the rotary vane assembly 11 is driven to move, so that the rotary vane assembly 11 moves with the fixed rod 313 on the fixed base 31 as the rotation center, and the position of each vane in the rotary vane assembly 11 is changed, so that the clear aperture formed by the rotary vane assembly 11 is adjusted within the range of h1-h 2.

Further, each long blade in the rotary blade assembly 11 has a positioning hole of the fixed end as a rotation center, which forms an outer regular polygon when coupled to each other, the number of sides of the outer regular polygon corresponding to the number of the long blades.

In the present application, as shown in fig. 42, the housing 32 covers the upper end surface of the fixed base 31, and forms a containing space with the fixed base 31, in order to further reduce the height of the iris diaphragm 1, the housing 32 is provided with a light entrance hole 321 and a movable channel 322 of the driving rod 123, the light entrance hole 321 is mainly used for light passing, the diameter of the light entrance hole 321 is consistent with the maximum aperture R of the iris diaphragm 1 and is kept unchanged all the time during the moving process of the rotating blade assembly 11, a driving rod movable channel 322 is provided at a position corresponding to the movable hole of the rotating blade assembly 11, and the length of the movable channel 322 is longer than the moving stroke of the driving rod 123, so as to ensure that the driving rod 123 moves in the driving rod movable channel 322 on the housing 32. In addition to limiting the movable travel of the driving rod 123, since the rotary vane assembly 11 is covered by the housing 32, a corresponding protective effect can be formed on the rotary vane assembly 11, and further, in order to prevent the housing 32 from interfering with the movement of the rotary vane assembly 11, a certain clearance is left between the housing 32 and the rotary vane assembly 11 during installation, and the clearance left can also form an effective protective effect on the rotary vane assembly 11 when solving the interference problem of the housing 32 on the rotary vane assembly 11

Further, as shown in fig. 51, when the movable carrier 12 moves relative to the fixed base 31, a corresponding driving force needs to be provided to the movable carrier 12, so that the present application further includes a driving assembly 20, and the driving assembly 20 is disposed between the movable carrier 12 and the fixed base 31. In the present application, the driving assembly 20 includes a driving magnet 21 and a driving coil 22, the driving magnet 21 is mounted in a magnet mounting position 126 formed on the movable carrier 12, and the driving coil 22 is disposed on a coil mounting position 3112 reserved on the fixed base 31, wherein the positions where the driving magnet 21 and the driving coil 22 are mounted correspond. When the driving coil 21 is energized, a magnetic field generated around the driving coil interacts with the driving magnet 21 to drive the movable carrier 12 fixed with the driving magnet 21 to move, the movable carrier 12 is connected with the movable end of the rotary blade assembly 11, the fixed base 31 is a fixed end on which the rotary blade assembly 11 is fixed, and when the movable carrier 12 rotates relative to the fixed base 31 under the action of the driving structure 40, the movable ends of the blades movably connected with the movable carrier 12 take the fixed rod 313 on the fixed base 31 as a rotation center, so as to drive the rotary blade assembly 11 to move to change the positions of the blades to adjust the size of the light passing hole formed by the rotary blade assembly 11. Specifically, in the present application, the driving assembly 20 may also be other driving structures, such as a piezoelectric structure or an SMA driving member, and when the driving assembly 20 is of a piezoelectric structure, the movable carrier 12 is rotated relative to the fixed base 31 under the action of the piezoelectric structure, and the fixed rod 313 on the fixed base 31 is used as a rotation center, so as to drive the rotary vane assembly 11 to move to adjust the clear aperture formed by the rotary vane assembly 11.

Further, as shown in fig. 51, in order to make the diameter of the light passing hole formed by the rotary blade assembly 11 meet the requirement of shooting, the moving position of the rotary blade assembly 11 needs to be sensed correspondingly, so the present application also provides a sensing portion 50, where the sensing portion 50 is mainly used for sensing the position of the movable carrier 12. The rotary vane assembly 11 is disposed on the movable carrier 12 and varies the position of each vane according to the rotation of the movable carrier 12, and the diameter of the light passing hole formed by the rotary vane assembly 11 has a certain relationship with the rotation angle of the movable carrier 12, for example, the rotation angle of the movable carrier 12 is 5 times or 6 times the diameter of the light passing hole formed by the rotary vane assembly 11. Since the rotation angle of the movable carrier 12 has a fixed relationship with the diameter of the rotary vane assembly 11, the movable carrier 12 is controlled to rotate by a certain angle, so as to drive the rotary vane assembly 11 to rotate to form the diameter of the required light passing hole, in the present application, in order to further simplify the structure of the sensor 50, the position of the rotary vane assembly 11 can be indirectly sensed by sensing the position of the movable carrier 12.

In a specific embodiment, the sensing portion 50 includes a position sensing magnet 51 and a position sensing sensor 52, and the position sensing magnet 51 is disposed in the position detecting groove 125 on the movable carrier 12 to move along with the movement of the movable carrier 12. The position sensing sensor 52 is disposed at a sensor through hole 3114 reserved on the fixed base 31, the position sensing sensor 52 is fixedly disposed with respect to the fixed base 31, the position sensing sensor 52 corresponds to an initial position of the position sensing magnet 51, and when the position sensing magnet 51 moves along with the movable carrier 12, the position sensing sensor 52 receives a signal of a position change of the movable carrier 12 to sense a position of the movable carrier 12 in real time. In the present application, the clear aperture formed by the rotary blade assembly 11 and the rotation angle of the movable carrier 12 form a certain number of relationships, and the sensor 50 is used to drive the movable carrier 12 to rotate by a predetermined angle by the driving assembly 20, so that the clear aperture formed by each blade of the rotary blade assembly 11 is adapted to the aperture requirement of the shooting in the external environment.

In a specific embodiment of the present application, as shown in fig. 50, a circuit assembly 40 is further provided to ensure the normal operation of the iris diaphragm 1, and the driving assembly 20 and the sensing portion 50 need to provide corresponding current to make them work normally when working, wherein the circuit assembly 40 may be a circuit board 41, the circuit board 41 is a rigid-flex board, and includes a main circuit board 411 and a solder pin 412, the main circuit board 411 may be a rigid board portion, and is fixed on the base bottom surface 311 of the fixed base 31, and is conducted with the driving coil 22 through a bottom surface through hole 3116 reserved on the fixed base 31 to provide the working current of the driving coil 22. The welding pins 412 are integrally extended from both sides of the main circuit board 411, and the welding pins 412 are connected to an external power supply device to supply the operating current required for the iris diaphragm 1. The shape of the main circuit board 411 of the circuit assembly 40 is consistent with the shape of the base bottom surface 311 of the fixed base 31, the main circuit board 411 is fixed on the lower surface of the fixed base 31 to save the space occupied by the circuit board 41, in the application, the lower surface of the fixed base 31 is further provided with a mounting board 33, and the circuit assembly 40 can be arranged on the lower surface of the mounting board 33 to ensure the flatness of the bottom surface of the fixed base 31.

The iris diaphragm 1 of the present application further includes a retaining member 60, as shown in fig. 49, the retaining member 60 enables the movable carrier 12 to relatively move with respect to the fixed base 31 under the action of the driving structure 40, and the movable carrier 21 returns to the original position after the driving force is removed. Specifically, the retainer 60 includes a ball 62 and a magnetic attraction piece 63. The magnetic attraction piece 63 and the driving magnet 23 interact so that the movable carrier 12 is held inside the fixed base 31. Further, in the present application, the movable carrier 12 needs to perform a rotational motion with respect to the fixed base 31, and in order to reduce a frictional force between the fixed base 31 and the movable carrier 12 to move each other, a corresponding ball groove is provided between the movable carrier 12 and the fixed base 31. The movable carrier 12 has a second ball groove 124, a first ball groove 3113 is disposed on a side of the fixed base 31 opposite to the movable carrier 12, and the balls 62 are restricted between the first ball groove 3113 and the second ball groove 124 to reduce friction force when the movable carrier 12 rotates relative to the fixed base 31. Further, the magnetic sheet 60 of the present application may further limit the balls 62 in the ball grooves to ensure the rotation of the movable carrier 12 relative to the fixed base 31.

In the present application, as shown in fig. 51, the number of the balls 62 in the holder 60 may be plural, and the balls 62 are disposed in the tracks formed by the first ball grooves 3113 on the fixed base 31 and the second ball grooves 124 on the movable carrier 12 to reduce friction when the movable carrier 12 moves relative to the fixed base 31. Wherein, in order to match the moving path of the movable carrier 12, the moving track formed by the first ball groove 3131 and the second ball groove 124 may be circular arc shape, and the balls 62 are limited in the circular arc shape track to assist the movement of the movable carrier 12.

Further, since the movable carrier 12 and the fixed base 31 are two different components, in order to form a track in which the balls 62 are restrained, as shown in fig. 49 to 52, the magnetic sheet 63 is disposed at a position corresponding to the coil mounting position 3112 on the fixed base 311, and the magnetic sheet 63 is located on the opposite side of the base bottom surface 311 corresponding to the coil mounting position 3112. Specifically, the magnetic sheet 63 may be a metal sheet structure, which is disposed on the lower surface of the fixed base 31, and the main circuit board 411 is fixed on the lower surface of the fixed base 31, and the magnetic sheet 63 may be fixed on the main circuit board 411 and interact with the driving magnet 21 fixed in the magnet mounting position 126 on the movable carrier 12, so that the movable carrier 12 is held in the fixed base 31, and the track formed by the first ball groove 3113 and the second ball groove 124 limits the balls 62 therein, so as to ensure the movement of the movable carrier 12 relative to the fixed base.

In the present application, the retainer 60 is not limited to the structure composed of the balls 62 and the magnetic attraction pieces 63, and in another specific embodiment, the retainer 60 may be a spring structure. The elastic piece has elasticity, one end of the elastic piece is connected with the movable carrier 12, the other end of the elastic piece is connected with the fixed base 31, after the movable carrier 12 moves relative to the fixed base 31 under the action of the driving structure 40, the movable carrier 12 can return to the initial position under the action of the elastic piece after the driving force is removed. Further, in order to keep the movable carrier 12 inside the fixed base 31, one end of the elastic piece is disposed on the movable carrier 12, and the other end of the elastic piece is disposed on the fixed base 31, where the number of the elastic pieces may be plural, and in a specific embodiment, the number of the elastic pieces is two, which are uniformly disposed on the fixed base 31. The elastic sheet can keep the movable carrier 12 in the fixed base 31, when the movable carrier 12 drives the rotary blade assembly 11 to move under the action of the driving force, after the action of the driving force is eliminated, the elastic sheet drives the movable carrier 12 to return to the initial position due to the elastic restoring force of the elastic sheet.

The iris diaphragm 1 provided in the present application is formed by overlapping a plurality of long blades to form a rotary blade assembly 11, wherein the fixed end of each blade is fixedly connected to a fixed rod 313 on the fixed base 31, and the movable end of each blade is movably connected to a driving rod 123 on the movable carrier 12. With the fixed lever 313 on the fixed base 31 as the rotation center of each blade, when the driving unit 20 drives the movable carrier 12 to move along a predetermined ball track, the positions of each blade in the rotary blade unit 11 are also moved accordingly. Because the middle position of the rotary blade assembly 11 forms a clear aperture, and the size of the clear aperture is related to the position of each blade, when the position of each blade changes, the diameter of the formed clear aperture also changes, and because the iris 1 is arranged at the light inlet of the optical lens of the camera module, when the clear aperture of the iris 1 changes, the light quantity entering the optical lens can be changed to adapt to different external environments, thereby improving the imaging quality of the camera module.

Further, the more the adjustable light passing hole is formed by the rotary blade assembly 11, the less the stray light is generated during imaging due to the higher the roundness (the degree of approximation of the circle) of the light passing hole, and theoretically, the more the number of blades in the present application, the higher the roundness of the adjustable light passing hole is formed. However, in order to facilitate the production and the subsequent assembly, the number of the long blades is at least five, in a specific embodiment, the number of the long blades is six, and the hexagonal light through holes formed in the middle of the long blades can effectively reduce the risk of stray light and facilitate the assembly of the subsequent assembly process. Specifically, in the application, each long blade takes the positioning hole of the fixed end as a rotation center and takes the length of the movable hole of the movable end as a movable stroke, so that the distance between the positioning end of the long blade and the fixed end is increased, and the adjustable range of the aperture is increased.

In the application, each long blade is provided with a convex outer side edge and a concave inner side edge, the outer side edge is provided with a avoiding groove, and the inner side edge is combined with other blades to form an adjustable light through hole. The inner side of the long blade is not a regular straight line, but a curve with a certain radian, preferably a concave arc, so that the hexagonal light passing hole formed in the middle of the rotating blade assembly 11 is not a regular hexagon, but an approximate hexagon structure, and further, more approximates to a circular structure. In one embodiment, the long blade inner side has a relatively gentle curve that is concave inward. When the driving rod moves along with the movable carrier 12, the movable end of the long blade movably connected with the driving rod is driven to move, and when the driving rod is positioned at different positions in the movable hole, the inner side surface of the long blade is combined with the light transmission holes with different apertures. The inner side edge of each long blade is set to be a gentle arc line, and the positions of each driving rod in the movable hole are controlled, so that the clear aperture of various sizes can be adjusted, the roundness of the clear hole can be further ensured, and the generation of stray light is reduced so as to improve the imaging quality of the imaging module.

The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims

An iris diaphragm, comprising:

a base;

A blade assembly, wherein the blade assembly is movably disposed to the base;

The driving assembly is arranged between the base and the blade assembly, is in transmission connection with the blade assembly, drives the blade assembly to rotate, and forms a light transmission hole with a variable aperture size through the rotation of the blade assembly; the driving assembly comprises at least two coil groups and at least two magnet groups, and the at least two coil groups and the at least two magnet groups are oppositely arranged along the optical axis direction; and

The reset component and the at least two magnet groups are oppositely arranged along the horizontal direction, the reset component is arranged on one of the base or the blade component, the at least two magnet groups are arranged on the other of the base or the blade component, and a repulsive force along the horizontal direction is generated between the reset component and the at least two magnet groups.
The iris diaphragm according to claim 1, wherein the reset assembly is located at one side of the at least two magnet groups, being disposed opposite to the at least two magnet groups in a horizontal direction, wherein the reset assembly comprises a first reset element and a second reset element, wherein the first reset element and the second reset element are symmetrically disposed along an optical axis.
The iris diaphragm according to claim 2, wherein the at least two magnet groups include a first magnet and a second magnet, wherein the first magnet is disposed opposite to the first reset element in a horizontal direction, and the second magnet is disposed opposite to the second reset element in a horizontal direction.
The iris diaphragm of claim 2, wherein the first reset element and the first magnet have the same magnetic poles, and the second reset element and the second magnet have the same magnetic poles, so that the reset assembly and the at least two magnet groups generate a repulsive force therebetween.
The iris diaphragm of claim 4, wherein the reset assembly further comprises a third reset element and a fourth reset element, the third reset element being located on a side of the first magnet, the fourth reset element being located on a side of the second magnet, and the first magnet being disposed opposite the third reset element in a horizontal direction, the second magnet being disposed opposite the fourth reset element in a horizontal direction.
The iris diaphragm according to any one of claims 1 to 5, further comprising a position sensing assembly and a weight element, wherein the position sensing assembly includes a sensing magnet and a sensing element, the sensing magnet and the sensing element being disposed opposite to each other in an optical axis direction, wherein the weight element and the sensing magnet are disposed symmetrically along the optical axis.
The iris diaphragm according to claim 6, further comprising an electric connection assembly, a magnetism increasing sheet, a supporting assembly, and a magnetic attraction member, wherein the electric connection assembly is provided to the base, the at least two coil groups are connected in series by the electric connection assembly, wherein the magnetism increasing sheet is integrally formed to a movable carrier, the supporting assembly is provided between the movable carrier and the base, wherein the magnetic attraction member is provided opposite to the sensing magnet, the weight element in a height direction.
An iris diaphragm, comprising:

a base;

A blade assembly, wherein the blade assembly is movably disposed to the base;

The driving assembly is arranged between the base and the blade assembly, is in transmission connection with the blade assembly, drives the blade assembly to rotate, and forms a light transmission hole with a variable aperture size through the rotation of the blade assembly;

the position sensing assembly comprises a sensing magnet and a sensing element which is arranged opposite to the sensing magnet along the optical axis direction; and

The reset component and the sensing magnet are oppositely arranged along the horizontal direction, the reset component is arranged on one of the base and the blade component, the sensing magnet is arranged on the other of the base and the blade component, and a repulsive force along the horizontal direction is generated between the reset component and the sensing magnet.
The iris diaphragm of claim 8, wherein the reset component is located at one side of the sensing magnet, opposite to the sensing magnet in a horizontal direction.
The iris diaphragm of claim 8, wherein the reset assembly comprises a first reset element and a second reset element, wherein the first reset element and the second reset element are symmetrically disposed along an optical axis.
The iris diaphragm according to claim 10, further comprising a weight element, wherein the weight element and the sensing magnet are disposed symmetrically along an optical axis, wherein the sensing magnet is disposed opposite to the first reset element in a horizontal direction, and the weight element is disposed opposite to the second reset element in a horizontal direction.
The iris diaphragm of claim 10, wherein the reset element and the sensing magnet have the same magnetic poles such that the reset element and the sensing magnet generate a repulsive force therebetween.
The iris diaphragm of claim 11, wherein the reset assembly further comprises a third reset element and a fourth reset element, the first reset element and the third reset element being located on opposite sides of the sensing magnet, the second reset element and the fourth reset element being located on opposite sides of the weight element.
The iris diaphragm according to any one of claims 8 to 13, wherein the driving assembly includes at least two coil groups and at least two magnet groups, the at least two coil groups being disposed opposite to the at least two magnet groups in the optical axis direction.
The module of making a video recording, its characterized in that includes:

A photosensitive assembly;

A lens assembly, wherein the lens assembly is disposed in a photosensitive path of the photosensitive assembly; and

The iris diaphragm of any of claims 1 to 14, wherein the iris diaphragm is located on the light entry side of the lens assembly.
An iris diaphragm, comprising:

a base;

A blade assembly, wherein the blade assembly is movably arranged on the base, the blade assembly comprises a movable carrier and a plurality of blade units movably arranged on the movable carrier, wherein the plurality of blade units form a light transmission hole with a variable aperture size;

The driving assembly is arranged on the base, is in transmission connection with the blade assembly, and drives the movable carrier to rotate so as to drive the blade units to rotate; the position sensing assembly comprises a sensing magnet and a sensing element, and the sensing magnet and the sensing element are oppositely arranged along the axial direction; and

The magnetic attraction component and the sensing magnet are oppositely arranged along the horizontal direction, wherein the magnetic attraction component is arranged on one of the base or the movable carrier, and the sensing magnet is arranged on the other of the base or the movable carrier so as to generate acting force along the horizontal direction between the sensing magnet and the magnetic attraction component.
The iris diaphragm of claim 16, further comprising a weight element, wherein the weight element is disposed with the sensing magnet Dan Duichen, wherein the magnet assembly further comprises a first magnet unit and a second magnet unit, wherein the first magnet unit is located on a side of the sensing magnet and corresponds to the sensing magnet, and the second magnet unit is located on a side of the weight element and corresponds to the weight element.
The iris diaphragm of claim 17, wherein the first magnetic unit is made of metal, and the first magnetic unit is a vertical iron sheet extending from top to bottom.
The iris diaphragm of claim 18, wherein the first magnetic unit is made of metal, and the first magnetic unit includes a cross member and a longitudinal member integrally extended from the cross member in an optical axis direction, the first magnetic unit being embedded in the base, wherein the cross member of the first magnetic unit is located at a top or a bottom of the longitudinal member.
The iris diaphragm of claim 17, wherein the first magnetic unit is made of a magnetic material, wherein a magnetic pole of the first magnetic member is opposite to a magnetic pole of the position sensing magnet.
The iris diaphragm of claim 17, wherein the projection of the sensing magnet on a projection plane perpendicular to the optical axis is contained within the projection of the magnet assembly on a projection plane perpendicular to the optical axis such that the sensing magnet and the magnet assembly attract each other in a horizontal direction.
The iris diaphragm of claim 17, further comprising a support assembly, wherein the support assembly is disposed between the movable carrier and the base.
The iris diaphragm of claim 22, further comprising a magnetically attractive member, wherein the magnetically attractive member is disposed opposite the position sensing magnet in a height direction.
The iris diaphragm of claim 19, wherein the driving assembly comprises at least two coil sets and at least two magnet sets, the at least two coil sets and the at least two magnet sets being disposed opposite each other, wherein the at least two magnet sets are disposed on the movable carrier, the at least two coil sets being disposed on the base; or the at least two magnet sets are arranged on the base, and the at least two coil sets are arranged on the movable carrier.
The iris diaphragm of claim 24, further comprising an electrical connection assembly, wherein the electrical connection assembly is disposed on the base and the at least two coil sets are electrically connected to the electrical connection assembly, wherein the electrical connection assembly comprises at least two conductive sheets separated from each other, the at least two coil sets of the driving assembly being connected in series by the at least two conductive sheets of the electrical connection assembly.
The iris diaphragm of claim 17, further comprising a magnetism increasing sheet, wherein the magnetism increasing sheet is disposed on the movable carrier, wherein the magnetism increasing sheet is located at a side of the at least two magnet groups away from the at least two coil groups.
The module of making a video recording, its characterized in that includes:

A photosensitive assembly;

A lens assembly, wherein the lens assembly is disposed in a photosensitive path of the photosensitive assembly; and

An iris diaphragm according to any of claims 16 to 26, wherein the iris diaphragm is located on the light entry side of the lens assembly.
An iris diaphragm, comprising:

a base;

A blade assembly, wherein the blade assembly is movably disposed to the base;

The driving assembly is arranged on the base, is in transmission connection with the blade assembly, and is used for driving the blade assembly to rotate, and a light transmission hole with a variable aperture size is formed by the blade assembly; and

And the electric connecting component is embedded in the base, and at least one part of the electric connecting component is exposed on the surface of the base and is electrically connected with the driving component so as to electrically conduct the driving component through the electric connecting component.
The iris diaphragm of claim 28, wherein the driving assembly comprises at least two coil sets and at least two magnet sets disposed opposite to each other, wherein the at least two coil sets are connected in series by the electrical connection assembly.
The iris diaphragm of claim 29, wherein the electrical connection assembly includes at least two conductive sheets separated from each other, the at least two coil sets of the driving assembly being connected in series by the at least two conductive sheets of the electrical connection assembly.
The iris diaphragm of claim 30, wherein the electrical connection assembly includes a first conductive sheet, a second conductive sheet, and a third conductive sheet, wherein the first conductive sheet, the second conductive sheet, and the third conductive sheet are separated from each other, and at least a portion of the first conductive sheet, the second conductive sheet, and the third conductive sheet are exposed from an upper surface of the base to enable electrical circuit conduction between the electrical connection assembly and the at least two coil groups.
The iris diaphragm of claim 31, further comprising a conductive substrate, wherein the conductive substrate is disposed on a bottom surface of the base, the at least two coil sets are electrically connected to the conductive substrate through an electrical connection assembly, wherein the at least two coil sets include a first coil and a second coil, the first coil and the second coil are symmetrically disposed around an optical axis, the first coil includes a first sub-coil and a second sub-coil, the second coil includes a third sub-coil and a fourth sub-coil, the first sub-coil and the second sub-coil are disposed adjacent in a horizontal direction, and the third sub-coil and the fourth sub-coil are disposed adjacent in a horizontal direction.
The iris diaphragm of claim 32, wherein the first conductive sheet includes a first conductive end and a second conductive end integrally extending from the first conductive end, the first conductive end being at least partially exposed at an upper surface of the base for electrical connection with a first sub-coil; the second conductive end is bent downwards from the plane where the first conductive end is located to form a concave part, and the plane where the second conductive end is located and the plane where the first conductive end is located have a certain height difference.
The iris diaphragm of claim 33, wherein the second conductive sheet includes a conductive sheet body, a third conductive end integrally extending outwardly from the conductive sheet body, and a fourth conductive end, the third conductive end and the fourth conductive end being at least partially exposed at an upper surface of the base such that the third conductive end is electrically connected to the second sub-coil, the fourth conductive end is electrically connected to the third sub-coil, and the conductive sheet body, the third conductive end, and the fourth conductive end are in a same horizontal plane.
The iris diaphragm of claim 34, wherein the third conductive sheet includes a fifth conductive end and a sixth conductive end integrally extending from the fifth conductive end, the fifth conductive end being at least partially exposed at an upper surface of the base for electrical connection with a fourth sub-coil; the sixth conductive end is bent downwards from the plane where the fifth conductive end is located to form a concave part, and the plane where the fifth conductive end is located and the plane where the sixth conductive end is located have a certain height difference.
The iris diaphragm of claim 35, wherein the first conductive end, the second conductive end, the third conductive end, the fourth conductive end, the fifth conductive end, and the sixth conductive end are disposed in a row around a circumference of the stationary base.
The iris diaphragm of claim 36, wherein the blade assembly includes a movable carrier and a plurality of blade units disposed to the movable carrier, wherein the driving assembly is disposed between the movable carrier and the base, the movable carrier being driven to rotate in a specific direction by the driving assembly.
The iris diaphragm of claim 37, wherein the at least two coil groups are fixed to the movable carrier, the at least two magnet groups are disposed at the base and opposite to the at least two coil groups; or the at least two coil groups are fixed on the base, and the at least two magnet groups are arranged on the movable carrier and are opposite to the at least two coil groups.
The iris diaphragm of claim 38, wherein the at least two magnet groups include a first magnet and a second magnet, the first magnet and the second magnet are symmetrically disposed about an optical axis, the first magnet and the first coil are disposed opposite each other in a height direction, the second magnet and the second coil are disposed opposite each other in a height direction, wherein the first magnet includes a first sub-magnet and a second sub-magnet, the second magnet includes a third sub-magnet and a fourth sub-magnet, the first sub-magnet and the second sub-magnet are disposed adjacent each other in a horizontal direction, and the third sub-magnet and the fourth sub-magnet are disposed adjacent each other in a horizontal direction; or the first magnet comprises a first sub magnet, a second sub magnet and a third sub magnet, the second magnet comprises a fourth sub magnet, a fifth sub magnet and a sixth sub magnet, the first sub magnet, the second sub magnet and the third sub magnet are adjacently arranged along the horizontal direction, the fourth sub magnet, the fifth sub magnet and the sixth sub magnet are adjacently arranged along the horizontal direction, the first sub magnet, the second sub magnet, the third sub magnet, the first sub coil and the second sub coil are oppositely arranged along the height direction, and the fourth sub magnet, the fifth sub magnet, the sixth sub magnet, the third sub coil and the fourth sub coil are oppositely arranged along the height direction.
The iris diaphragm of claim 37, further comprising a position sensing assembly, a weight element, and a magnetism increasing sheet, wherein the position sensing assembly comprises a sensing magnet and a sensing element, wherein the sensing magnet and the sensing element are disposed opposite each other, the sensing magnet and the weight element are disposed symmetrically about an optical axis, wherein the magnetism increasing sheet is disposed on a movable carrier, wherein the magnetism increasing sheet is located on a side of the at least two magnet sets away from the at least two coil sets.
The iris diaphragm of claim 37, further comprising a magnet assembly, a support assembly, and a magnet attraction member, wherein the magnet assembly is disposed at the base and the magnet assembly is disposed opposite the at least two magnet sets or sensing magnets in a horizontal direction, wherein the magnet assembly is a magnetically permeable material, the support assembly is disposed between the movable carrier and the base, wherein the magnet attraction member is disposed opposite the sensing magnets, the weight element in a height direction to maintain the support assembly clamped between the movable carrier and the base by a magnetic attraction force between the magnet attraction member and the sensing magnet, and a magnetic attraction force between the magnet attraction member and the weight element.
The module of making a video recording, its characterized in that includes:

A photosensitive assembly;

A lens assembly, wherein the lens assembly is disposed in a photosensitive path of the photosensitive assembly; and

The iris diaphragm of any of claims 28 to 41, wherein the iris diaphragm is located on the light entrance side of the lens assembly.
An iris diaphragm optical lens, comprising:

An iris diaphragm device including a blade configured to rotate to form an incident hole having an adjustable aperture, the iris diaphragm device further having a light passing hole located on an image side of the incident hole; and

And one end of the optical lens extends into the light through hole from the image side of the light through hole, the periphery side of the optical lens is provided with a diaphragm bearing part, and the iris diaphragm device is supported by the diaphragm bearing part.
The variable aperture optical lens of claim 43, wherein the optical lens comprises a barrel and a plurality of lenses disposed within the barrel, the barrel comprising a first barrel portion near an image side and a second barrel portion near an object side, an outer diameter of the first barrel portion being larger than an outer diameter of the second barrel portion, the second barrel portion extending wholly or partially into the light passing aperture.
The iris-diaphragm optical lens of claim 44, wherein the first barrel portion and the second barrel portion are integrally formed; or the first lens barrel portion and the second lens barrel portion are of a split structure.
The iris optical lens of claim 43, wherein a bottom surface of the iris apparatus is supported against the diaphragm supporting portion, and/or an inner wall of the light passing hole of the iris apparatus is supported against the diaphragm supporting portion.
An iris diaphragm optical lens of claim 43, wherein the iris diaphragm device is adhered to the diaphragm carrier by glue.
The iris diaphragm optical lens of claim 43 further comprising a second optical lens, said second optical lens being disposed on an object side of said iris diaphragm device.
The iris optical lens of any of claims 43 to 48, wherein the iris apparatus comprises a fixing portion and a driving mechanism provided at the fixing portion, the light passing hole is formed at a middle portion of the fixing portion, the blade is movably provided at the fixing portion, the driving mechanism is configured to drive the blade to rotate to adjust an aperture of the incident hole, and the fixing portion forms a space for installing the driving mechanism around a circumference of the light passing hole.
The iris diaphragm optical lens of claim 49, wherein the fixing portion comprises a mounting housing and a circuit board, a light-passing hole is formed in the middle of the mounting housing, the circuit board and the driving mechanism are disposed on the mounting housing so as to avoid the light-passing hole, the vane is movably disposed on the mounting housing so that the incident hole formed by the vane is opposite to the light-passing hole, the vane, the driving mechanism and the circuit board are disposed in sequence along the direction of the optical axis, and the circuit board is connected with the driving mechanism so as to control the driving mechanism to operate.
The iris diaphragm optical lens of claim 50, wherein the driving mechanism comprises a driving member, a driving magnet and a driving coil which are sequentially disposed along the direction of the optical axis, wherein the driving member is movably disposed between the mounting housing and the blade and is configured to rotate the blade when moving, the driving member is in a circular ring shape, the driving magnet is disposed on the bottom surface of the driving member, the driving coil is disposed on the mounting housing or the circuit board opposite to the driving magnet, and the driving coil is electrically connected to the circuit board.
The iris-type optical lens of claim 51, wherein the iris-type optical lens includes a plurality of the blades, one end of each of the blades is rotatably coupled to the mounting housing, and the other end extends above the light passing hole, such that the plurality of blades in combination define the incident hole, each of the blades is coupled to the driving member such that the driving member rotates to rotate each of the blades to adjust the aperture of the incident hole.
An iris diaphragm optical lens of claim 52 wherein the blade has a positioning hole, the mounting housing has a positioning post engaged with the positioning hole, the blade rotates with the positioning post as an axis, the blade further has a movable hole, the driving member has a stopper post slidably engaged with the movable hole, the movable hole has a stroke space for sliding the stopper post, and the stopper post moves in the movable hole and drives the blade to rotate when the driving member rotates.
The iris diaphragm optical lens of claim 51, wherein the circuit board and the driving member are respectively located at both sides of the mounting housing, a coil through hole for accommodating the driving coil is formed on a bottom surface of the mounting housing, the driving coil is disposed on the circuit board and extends from the circuit board into the coil through hole such that the driving coil is opposite to the driving magnet disposed on a bottom surface of the driving member, the bottom surface of the driving member has a mounting groove, and the driving magnet is embedded in the mounting groove.
The iris diaphragm optical lens of claim 54, wherein the circuit board is a flexible printed circuit board, and the fixing part further comprises a mounting plate provided at a side of the mounting housing where the circuit board is mounted and holding the circuit board between the mounting plate and the mounting housing;

The fixing part further comprises a locking piece, the locking piece is arranged on the mounting shell body in a mode that the light transmission hole is avoided, and the blade is kept between the locking piece and the mounting shell body.
The iris diaphragm optical lens of claim 55 further comprising a second optical lens disposed on the attachment tab, the attachment tab having an attachment tab light passing hole in the middle thereof, the second optical lens being opposite the attachment tab light passing hole, the bottom of the second optical lens extending into the attachment tab light passing hole toward the image side.
An iris diaphragm optical lens of claim 54 wherein the bottom surface of the driving member has a first member, the mounting housing has the second member opposite to the first member, and the driving member and the mounting housing are contacted in the optical axis direction by the first member and the second member, the first member and the second member for reducing friction upon displacement of the driving member.
The iris optical lens of claim 54, wherein the iris apparatus further comprises a position detecting unit for detecting a position of the driving member, the position detecting unit including a position detecting magnet provided on the driving member and a position detecting sensor provided opposite to the position detecting magnet, the mounting housing having a sensor through hole, the position detecting sensor being provided on the circuit board and extending into the sensor through hole, a bottom surface of the driving member having a position detecting groove, the position detecting magnet being embedded in the position detecting groove.
The camera module is characterized by comprising the iris diaphragm optical lens, a motor structure and a photosensitive assembly according to any one of claims 43-58, wherein a lens mounting cavity is formed in the middle of the motor structure, the optical lens is arranged in the lens mounting cavity, the motor structure is used for driving the optical lens to move, and the photosensitive assembly is arranged on the image side of the optical lens and used for imaging.
The camera module of claim 59, wherein a bottom surface of the iris apparatus is opposite to an upper end surface of the motor structure, the motor structure includes a motor movable portion and a motor fixed portion, the optical lens is connected to the motor movable portion, the iris apparatus further includes a driving mechanism and a circuit board for controlling the driving mechanism, and the circuit board of the iris apparatus is electrically connected to a circuit of the motor movable portion.
The camera module of claim 59, wherein the photosensitive assembly comprises a photosensitive chip, a second circuit board electrically connected to the photosensitive chip, a color filter disposed between the photosensitive chip and the optical lens, and a color filter holder for holding the color filter, and wherein the photosensitive assembly is manufactured by a molding process.
An iris diaphragm device, comprising:

the installation shell is provided with a light-passing hole in the middle;

A blade disposed on the mounting housing and configured to rotate to form an aperture-adjustable entry hole;

A circuit board arranged on the mounting shell, wherein a bottom surface of the mounting shell opposite to the circuit board is provided with a containing hole for containing components on the circuit board; and

The driving mechanism is arranged between the blades and the circuit board along the optical axis direction and is configured to drive the blade group to rotate so as to adjust the aperture of the incident hole.
The iris apparatus of claim 62, wherein the driving mechanism includes a driving member, a driving magnet, and a driving coil, the driving member is movably disposed on the mounting housing and configured to rotate the blade when displaced, the driving magnet is disposed opposite to the driving coil in the optical axis direction, one of the driving coil and the driving magnet is disposed on the driving member, and the other is disposed on the mounting housing or the circuit board.
The iris diaphragm apparatus of claim 63, wherein the circuit board and the driving member are respectively disposed at both sides of the mounting housing in an optical axis direction, a coil through hole for accommodating the driving coil is formed on a bottom surface of the mounting housing, the driving coil is disposed on the circuit board and extends from the circuit board into the coil through hole, the driving magnet is disposed on the driving member, a mounting groove is formed on a bottom surface of the driving member, and the driving magnet is embedded in the mounting groove.
The iris diaphragm apparatus of claim 64 wherein the driving coil is disposed at a position of the circuit board near an edge, and a side of the coil through hole communicates with the outside.
The iris diaphragm assembly of claim 63 wherein the driving member has a circular shape, the driving member is rotatably disposed on the mounting housing, the plurality of blades, one end of each of the blades is rotatably connected to the mounting housing, and the other end extends above the light passing hole, such that the plurality of blades in combination define the incident hole, and the driving member is connected to each of the blades such that the driving member rotates to rotate each of the blades.
The iris diaphragm assembly of claim 66 wherein the blade has a positioning hole, the mounting housing has the positioning post engaged with the positioning hole, the blade rotates about the positioning post, the blade further has a movable hole, the driving member has a stop post slidably engaged with the movable hole, and the movable hole has a space for sliding the stop post.
The iris diaphragm apparatus of claim 63, wherein the bottom surface of the driving member has a first member, the mounting housing has a second member opposite to the first member, and the driving member and the mounting housing are contacted in the optical axis direction by the first member and the second member.
The iris diaphragm apparatus of claim 68 wherein the first member and the second member are a boss and a runner, respectively, the boss being adapted to slide along the runner;

Or the first and second members are balls and ball grooves, respectively, the balls being adapted to roll in the ball grooves.
The iris diaphragm apparatus of claim 63 wherein the driving member defines a section of the driving magnet extending radially outwardly to form an enlarged end, the mounting housing defines a relief opening opposite the enlarged end, and the relief opening has a width greater than a width of the enlarged end.
The iris apparatus of claim 63 further comprising a position detecting magnet provided on the driving member, and a position detecting sensor opposite to the position detecting magnet, the position detecting sensor being connected to the circuit board.
The iris diaphragm device of claim 71, wherein the circuit board and the driving member are respectively provided at both sides of the mounting housing in an optical axis direction, a through hole for accommodating the position detecting sensor is provided on a bottom surface of the mounting housing, the position detecting sensor is provided on the circuit board and extends from the circuit board into the sensor through hole, a position detecting groove is provided on a bottom surface of the driving member, and the position detecting magnet is embedded in the position detecting groove.
An iris diaphragm apparatus of claim 72 wherein the driving member is further provided with a weight, and wherein the weight is symmetrically disposed with the position detecting magnet to balance the center of gravity of the driving member.
The iris diaphragm apparatus of any one of claims 62 to 73, wherein the circuit board and the blades are respectively disposed at both sides of the mounting housing in an optical axis direction, the circuit board is disposed around the light passing hole of the mounting housing, and the circuit board is attached to a bottom surface of the mounting housing.
The iris diaphragm apparatus of claim 74 further comprising a mounting plate disposed on one side of the circuit board, the circuit board being held between the mounting plate and the mounting housing, the mounting plate being of a metallic material adapted to be attracted by a magnet.
The iris diaphragm apparatus of claim 75 wherein the mounting plate has a hollow structure, the mounting plate includes a plurality of mounting plate sections separated from each other, each of the mounting plate sections being spaced apart on one side of the circuit board.
The iris diaphragm apparatus of any one of claims 62 to 73, further comprising a locking tab provided at a side of the mounting housing where the blade is mounted to hold the blade between the locking tab and the mounting housing, the locking tab being provided with a black object preventing reflection of light on an object side surface thereof.
The iris diaphragm apparatus of any one of claims 62 to 73, wherein the aperture of the light passing hole is not smaller than the maximum aperture of the entrance hole.
The iris diaphragm apparatus of any one of claims 62 to 73, wherein the mount housing extends from an edge of the light passing hole toward the image side to form a lens connection portion.
An imaging module comprising a variable aperture arrangement as claimed in any one of claims 62 to 79.
An iris diaphragm, comprising

The rotary blade assembly comprises a plurality of long blades which are mutually overlapped to form an adjustable light-passing hole, wherein each long blade comprises a fixed end and a movable end, and the fixed end and the movable end are respectively positioned at two sides of the light-passing hole;

a drive assembly;

The rotary blade assembly rotates under the driving action of the driving assembly, and the aperture size of the light passing hole changes.
The iris diaphragm of claim 81 wherein the fixed end of the long blade has a positioning hole and the movable end has a movable hole, the positioning hole and the movable hole being provided at both ends of the long blade separately.
The iris diaphragm of claim 82 wherein the long side of the movable hole extends toward the optical axis to form a length, and the length of the movable hole forms a movable stroke.
The iris diaphragm of claim 82 wherein the distance between the positioning aperture and the center of the movable aperture is d1 and the distance between the fixed end and the movable end is d2, wherein 1> d1/d2>2/3.
The iris diaphragm of claim 83 wherein the aperture of the light passing hole is h, wherein 1/3>h/d1>1/5.
The iris diaphragm of claim 82 wherein a line connecting the positioning aperture and the center of the movable aperture passes through the light-passing aperture.
The iris diaphragm of claim 82 wherein the center line of the positioning hole and the movable hole corresponding to each of the long blades forms a polygon, and the polygon is always located in the light-passing hole during the change of the light-passing hole.
The iris diaphragm of claim 82 wherein the centers of the movable apertures of the long blades are coupled to each other to form an inner regular polygon, the inner regular polygon covering the light passing aperture.
The iris diaphragm of claim 81, wherein the long blades have a positioning hole of the fixed end as a rotation center, the rotation center forming an outer regular polygon when coupled to each other, the number of sides of the outer regular polygon corresponding to the number of the long blades.
The iris diaphragm of claim 81, wherein at least two of the long blades are disposed in the same plane.
An iris diaphragm, comprising:

The rotary blade assembly comprises a plurality of long blades which are mutually overlapped to form an adjustable light transmission hole, wherein each long blade comprises a fixed end, a movable end and an avoidance groove;

the movable end of the long blade is movably connected with the movable carrier;

The fixed end of the long blade is connected with the fixed base;

a drive assembly;

The movable ends of at least one adjacent long blade of the long blades are arranged in the avoidance grooves of the long blades, the movable carrier rotates under the driving action of the driving assembly to drive the long blades to change in position, and the aperture size of the light passing hole changes.
The iris diaphragm of claim 91 wherein the fixed end has a positioning hole and the movable end has a movable hole, the positioning hole and the movable hole being provided at both ends of the long blade, the long side of the movable hole extending toward the optical axis to form a certain length, the length of the movable hole forming a movable stroke.
The iris diaphragm of claim 92 wherein the movable carrier includes at least one driving rod, the number of driving rods being equal to the number of the long blades, each driving rod being connected to the movable end of the long blade, disposed in the movable aperture of each long blade, and movable within the movable stroke defined by the movable aperture.
The iris diaphragm of claim 93 wherein the drive rod of at least one adjacent stacked long blade is disposed in a relief groove of the adjacent long blade.
The iris diaphragm of claim 91 wherein the long blade includes an outer side away from the optical axis and an inner side closer to the optical axis, the outer side being convex and the inner side being concave.
The iris diaphragm of claim 95 wherein the relief groove is provided on an outer side of the long blade, the relief groove being configured to be recessed inwardly along the outer side to leave a space.
The iris diaphragm of claim 92 wherein the length of the movable aperture of adjacent ones of the long blades is less than or equal to the maximum diameter of the relief groove in the long blade.
The iris diaphragm of claim 95 wherein the number of the long blades is at least five and the light passing holes are distributed in a ring shape, and the number of sides of the polygon corresponds to the number of the long blades.
The iris diaphragm of claim 98 wherein the inner side of the long blade has a curved shape and the polygonal light-passing hole is formed in an approximately circular configuration.
The iris diaphragm of claim 91 wherein each of the long blades, except for adjacent blades disposed axisymmetrically, has a minimum stack gap between two blades while having a relatively larger stack gap with other blades or being spaced apart by at least two blades.