WO2023045947A1

WO2023045947A1 - Lens module, camera, and electronic device

Info

Publication number: WO2023045947A1
Application number: PCT/CN2022/120105
Authority: WO
Inventors: 朱林波; 陈宇灏
Original assignee: 维沃移动通信（杭州）有限公司
Priority date: 2021-09-24
Filing date: 2022-09-21
Publication date: 2023-03-30
Also published as: CN113820818A

Abstract

A lens module, a camera, and an electronic device. The lens module comprises a lens barrel (100), a lens sheet group (200), a variable aperture (300) and a driving apparatus (400); the lens barrel (100) is provided with a light inlet and an accommodating cavity, the light inlet is communicated with the accommodating cavity, and the lens sheet group (200) is provided in the accommodating cavity; the variable aperture (300) is mounted on the lens barrel (100), and the variable aperture (300) is located on the side of the lens barrel (100) provided with the light inlet; the lens sheet group (200) is provided with a protruding portion (211), and the protruding portion (211) protrudes from the variable aperture (300); the driving apparatus (400) is connected to the variable aperture (300), and the driving apparatus (400) is used for adjusting the size of an aperture hole of the variable aperture (300).

Description

Lens module, camera and electronic equipment

cross reference

The present invention claims the priority of the Chinese patent application with the application number 202111122746.6 and the title of the invention "lens module, camera and electronic equipment" submitted to the China Patent Office on September 24, 2021. The entire content of this application is incorporated by reference in In the present invention.

technical field

The application belongs to the technical field of camera and imaging, and in particular relates to a lens module, a camera and electronic equipment.

Background technique

With the advancement of science and technology, the performance of electronic devices such as smartphones and tablets continues to improve, and users have also put forward higher requirements for the camera performance of electronic devices. In order to improve the camera performance of the camera in the electronic device, it can be realized by installing a variable aperture in the camera.

As an independent component, the variable aperture itself has a certain size. When it is installed on the lens, it will undoubtedly increase the overall height of the camera, which will aggravate the convex hull problem of the electronic device and weaken the appearance of the electronic device.

Contents of the invention

The purpose of the embodiment of the present application is to provide a lens module, a camera and an electronic device, so as to reduce the height of the camera with a variable aperture.

In order to solve the above-mentioned technical problems, the application is implemented as follows:

In the first aspect, the embodiment of the present application provides a lens module, which includes a lens barrel, a lens group, an iris and a driving device, wherein:

The lens barrel has a light inlet and an accommodating cavity, the light inlet communicates with the accommodating cavity, and the lens group is arranged in the accommodating cavity;

The variable aperture is installed on the lens barrel, and the variable aperture is located on the side of the lens barrel where the light inlet is provided; the lens group has a raised portion, and the raised portion protrudes is set in the variable aperture;

The driving device is connected with the variable aperture, and the driving device is used for adjusting the size of the aperture of the variable aperture.

In the second aspect, an embodiment of the present application provides a camera, which includes a photosensitive element and the lens module described in the first aspect of the embodiment of the present application, the photosensitive element is used to receive light passing through the lens module to for imaging.

In a third aspect, an embodiment of the present application provides an electronic device, which includes a housing and the camera described in the second aspect of the embodiment of the present application, where the camera is installed on the housing.

In the embodiment of the present application, the iris is installed on the side of the lens barrel where the light inlet is set, and the convex part of the lens group protrudes from the iris, that is, the part of the lens group that protrudes toward the light inlet Extending to the iris hole of the iris, in this setting, in the height direction of the lens module, the iris hole of the iris provides accommodating space for the lens group, which undoubtedly can effectively improve the compact structure of the lens module performance, thereby reducing the height dimension of the camera and improving the convex hull problem of electronic equipment.

Description of drawings

FIG. 1 is a schematic structural diagram of a lens module disclosed in an embodiment of the present application;

FIG. 2 is a schematic diagram of an exploded structure of a lens module disclosed in an embodiment of the present application;

Fig. 3 is a cross-sectional view of the lens module disclosed in the embodiment of the present application;

Fig. 4 is a partial enlarged view of place A in Fig. 3;

Fig. 5 is a schematic structural diagram of the variable aperture disclosed in the embodiment of the present application in the first state;

FIG. 6 is a schematic structural diagram of the variable aperture disclosed in the embodiment of the present application in the second state;

Fig. 7 is a schematic structural diagram of the aperture carrier disclosed in the embodiment of the present application;

Fig. 8 is a schematic structural diagram of the stop ring disclosed in the embodiment of the present application;

Fig. 9 is a schematic structural view of the connector and the magnet disclosed in the embodiment of the present application.

Explanation of reference signs:

100-lens barrel, 110-aperture carrier, 111-first stepped groove, 112-guiding groove, 113-second stepped groove, 114-positioning protrusion, 120-tube main body,

200-lens group, 210-first lens subgroup, 211-raised portion, 220-second lens subgroup,

300-variable aperture, 310-first blade, 311-first through hole, 311a-first light transmission part, 311b-second light transmission part, 320-second blade, 321-second through hole, 321a- The third transparent part, 321b-the fourth transparent part, 330-the third blade, 331-the third through hole, 340-the fourth blade, 341-the fourth through hole,

400-drive device, 410-drive assembly, 411-magnet, 412-drive coil, 420-connector, 421-installation slot,

500-stop ring, 510-avoidance space,

600-protective cover,

H1-small aperture light transmission area, H2-large aperture light transmission area.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The technical solutions disclosed in the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

In order to solve the technical problem in the related art that the variable aperture increases the height of the camera, an embodiment of the present application provides a lens module. As shown in FIGS. 1 to 9 , the lens module disclosed in the embodiment of the present application includes a lens barrel 100 , a lens group 200 , a variable aperture 300 and a driving device 400 .

Wherein, the lens barrel 100 is the basic component of the lens module, which provides an installation basis for the lens group 200, the iris 300 and the driving device 400, and plays a certain protective role.

As shown in FIG. 2 to FIG. 4 and FIG. 7 , the lens barrel 100 has a light inlet and an accommodating cavity, the light inlet communicates with the accommodating cavity, and the lens group 200 is disposed in the accommodating cavity. The accommodating cavity provides an installation space for the lens group 200, and the light inlet communicates the accommodating cavity with the outside, so that light can enter the accommodating cavity through the light inlet, and the lens group 200 performs light distribution to realize Eliminate chromatic aberration, aberration and other functions, so that the camera can obtain high-quality images.

The iris 300 is mounted on the lens barrel 100 , and the iris 300 is located on a side of the lens barrel 100 where the light inlet is disposed. It should be understood that the variable aperture 300 can adjust the light transmission area by changing the aperture size of the aperture, thereby controlling the luminous flux transmitted from the light inlet hole to the lens group 200. Therefore, in different light environments and different shooting requirements Next, it can be adapted by adjusting the variable aperture 300 . With such setting, the variable aperture 300 can be adjusted before the light is projected to the lens group 200, so as to adaptively adjust the luminous flux passing through the light inlet.

In the related art, the variable aperture and the lens module are two independent structures, and the two are stacked inside the camera, so that the overall size of the camera is relatively large, and the convex hull problem specifically appears on the electronic device.

In the embodiment of the present application, the lens set 200 has a protruding portion 211 protruding from the variable aperture 300 . It should be understood that the lens group 200 includes a convex lens on a side close to the light inlet, and the convex portion 211 refers to the convex side of the convex lens. Under such a structural layout, the raised portion 211 can extend toward the light inlet side and into the aperture hole of the variable aperture 300, and the aperture hole can avoid the raised portion 211 and provide accommodating space for the raised portion 211. When , it means that in the height direction of the lens module, part of the lens group 200 is embedded in the iris 300 .

It should be noted that, in the embodiment of the present application, the variable aperture 300 is set as a part of the lens module, and the lens group 200 and the variable aperture 300 have a partial structural embedded relationship inside the lens module, so that The iris 300 and the lens group 200 share the same carrier of the lens barrel 100 , which can undoubtedly improve the overall compactness of the lens module. Compared with the solution in the related art where the variable aperture and the lens module are set independently, the height of the lens module in the embodiment of the present application is reduced, thereby reducing the height of the camera and improving the convex hull of the electronic device question.

At the same time, the driving device 400 is connected with the variable aperture 300 , and the driving device 400 is used to adjust the size of the aperture of the variable aperture 300 . When the variable aperture 300 needs to be adjusted, the driving device 400 can be used to realize convenient adjustment, which can improve the convenience of operation.

In order to further play a protective role, the lens module may further include a protective cover 600 , and the protective cover 600 is arranged on a side of the lens module close to the light inlet. Of course, the protective cover 600 needs to be provided with a light hole to facilitate the passage of light.

It can be seen from the above description that in the embodiment of the present application, the variable aperture is installed on the side of the lens barrel where the light inlet is set, and the convex part of the lens group is protruded from the variable aperture, that is, the lens group faces the light inlet. The protruding part of the mouth extends to the aperture hole of the iris diaphragm. With this setting, in the height direction of the lens module, the aperture hole of the iris aperture provides accommodating space for the lens group, which undoubtedly can effectively improve the lens. The compact structure of the module further reduces the height of the camera and improves the convex hull problem of the electronic equipment.

In this embodiment of the present application, there is no limit to the specific implementation manner in which the protruding part 211 protrudes from the variable aperture 300, for example, by thinning the side of the lens barrel 100 provided with the light inlet, so that when When the iris 300 is installed on the lens barrel 100, the height of the iris 300 will be lowered to fit around the raised portion 211, that is, the raised portion 211 is located in the aperture hole of the iris 300. , the overall height of the lens module must be reduced.

In another embodiment, as shown in FIGS. 2 to 4 , the lens barrel 100 of the embodiment of the present application may be provided with a first stepped groove 111 on the side of the light inlet, and the first stepped groove 111 is arranged around the light inlet. The variable aperture 300 is disposed in the first stepped groove 111 . It should be understood that since the first stepped groove 111 is arranged around the light inlet, the first stepped groove 111 and the opening of the light inlet are arranged in a stepped shape. When the variable aperture 300 is arranged in the first stepped groove 111 , it ensures that the iris 300 is also arranged around the light inlet, so that the iris 300 can be used to control the luminous flux projected from the light inlet to the lens group 200 .

At the same time, since the variable aperture 300 is arranged in the first stepped groove 111, the first stepped groove 111 provides an accommodating space for the variable aperture 300, and the variable aperture 300 is equivalent to being embedded in the lens barrel 100, so that it can After the iris 300 is combined with the lens module, it only needs to occupy the size space of the lens module. Compared with the solution in the related art where the iris and the lens module are stacked independently of each other, the structure of the lens module in the embodiment of the present application The compactness has been optimized. After installing it in the camera, it can undoubtedly reduce the height of the camera and achieve the effect of improving the convex hull problem of electronic equipment.

In order to further optimize the structural compactness of the lens module, as shown in FIG. 3 , the raised portion 211 of the embodiment of the present application may protrude from the top surface of the iris 300 . It should be understood that the top surface of the iris 300 refers to the end surface on the side facing away from the lens barrel. Under such a structural layout, the protrusion 211 is configured such that more parts extend into the aperture hole of the iris 300 until the end of the protrusion 211 protrudes beyond the top surface of the iris 300 , at this time, the height dimension of the lens module is reduced to the minimum.

At the same time, the surrounding area of the protrusion 211 protruding from the top surface of the variable aperture 300 can also provide accommodation space for other components, for example, the protective cover 600 and the stop ring 500 described later can all surround The protruding raised portion 211 is provided so as to avoid increasing the height dimension of the lens module.

In the embodiment of the present application, the variable aperture 300 may be of various types. For example, the variable aperture 300 is a deformable structural member, which can change the size of the aperture in the center of the aperture through deformation. In other implementations, as shown in FIGS. 2 to 7 , the variable aperture 300 of the embodiment of the present application may include a first blade 310 and a second blade 320 , and the first blade 310 and/or the second blade 320 are movable. The first blade 310 is provided with a first through hole 311, the second blade 320 is provided with a second through hole 321, and the driving device 400 is used to drive the first blade 310 and the second blade 320 to generate relative motion, so as to change the size of the aperture of the aperture.

Specifically, in the embodiment of the present application, at least one of the first vane 310 and the second vane 320 is movably disposed in the first stepped groove 111, that is, the first vane 310 or the second vane 320 is movably disposed in the first step In the groove 111 , alternatively, both the first blade 310 and the second blade 320 are movably disposed in the first stepped groove 111 . Based on the first through hole 311, the first blade 310 has a first light-transmitting area, and based on the second through-hole 321, the second blade 320 has a second light-transmitting area; meanwhile, because the first blade 310 and the second blade 320 Laminated in the direction of the optical axis of the lens module, only the overlapping area of the first through hole 311 and the second through hole 321 can smoothly allow light to pass through, and the overlapping area of the first through hole 311 and the second through hole 321 defines the The light transmission hole of the iris 300 is provided.

Under the driving action of the driving device 400, when the first blade 310 and the second blade 320 can produce relative motion, the relative position of the first through hole 311 and the second through hole 321 will also change accordingly, so that the first blade 310 can be adjusted. The overlapping area of the through hole 311 and the second through hole 321 further changes the size of the aperture of the iris 300 .

It should be noted that the variable aperture 300 of the embodiment of the present application is not provided with a casing, which means that the variable aperture 300, the lens group 200 and the driving device 400 all use the lens barrel 100 as a carrier, which undoubtedly can reduce the size of the variable aperture. The overall footprint of 300 improves the compactness of the lens module and achieves the effect of further reducing the height and size of the camera.

Further, as shown in FIG. 2 , FIG. 5 and FIG. 6 , the first through hole 311 of the embodiment of the present application may include a first light-transmitting portion 311 a and a second light-transmitting portion 311 b connected to each other, and the first light-transmitting portion 311 a The area of the second through hole 321 is smaller than the area of the second transparent part 311b; the second through hole 321 includes a third transparent part 321a and a fourth transparent part 321b connected, and the area of the third transparent part 321a is smaller than that of the fourth transparent part 321b The area of the variable aperture 300 has a first state and a second state. When the variable aperture 300 is in the first state, the first light-transmitting portion 311a and the third light-transmitting portion 321a overlap to form a small aperture light-transmitting area H1; when the variable aperture 300 is in the second state, the second light-transmitting portion 311b and the fourth light-transmitting portion 321b overlap to form a large aperture light-transmitting region H2.

Under this structural layout, due to the size relationship, it is more convenient to form the small aperture light transmission area H1 when the first light transmission part 311a and the second light transmission part 311b overlap, and the second light transmission part 311b and the fourth light transmission part When 321b overlaps, it is more convenient to form the large-aperture light-transmitting area H2. Through the driving action of the driving device 400 , the first blade 310 and the second blade 320 can be driven to generate relative motion, so that the variable aperture 300 can be switched between the first state and the second state. When a small amount of light transmission is required, the iris 300 can be switched to the first state, and the small aperture light transmission area H1 is used for light transmission; when a large amount of light is required, the iris 300 can be switched to Switch to the second state, and use the large aperture light transmission area H2 to transmit light.

In this embodiment of the application, the specific shapes of the first through hole 311 and the second through hole 321 are not limited. The four light-transmitting parts 321b can all be square holes, so that the small-aperture light-transmitting area H1 and the large-aperture light-transmitting area H2 are square light-transmitting areas. In another embodiment, as shown in FIG. 2 , FIG. 5 and FIG. 6 , the edge of the first through hole 311 and the edge of the second through hole 321 in the embodiment of the present application may both be arc-shaped, so that Both the small aperture light transmission area H1 and the large aperture light transmission area H2 are circular light transmission areas.

It should be understood that, under such arrangement, the aperture edges of the first light-transmitting part 311a, the second light-transmitting part 311b, the third light-transmitting part 321a and the fourth light-transmitting part 321b are all arc-shaped. When it is switched to the first state, most of the aperture edges of the first light-transmitting part 311a and the third light-transmitting part 321a overlap together to form a circular light-transmitting area, and the aperture aperture of the circular light-transmitting area is Smaller, so it is a small aperture light transmission area H1, see Figure 5 for details; when the variable aperture 300 is switched to the second state, most of the aperture edges of the second light transmission part 311b and the fourth light transmission part 321b are overlapped together to form a circular light-transmitting area, and the aperture of the circular light-transmitting area is relatively large, so it is a large-aperture light-transmitting area H2, see FIG. 6 for details.

In an optional solution, as shown in FIG. 2 and FIG. 5 to FIG. 7 , the variable aperture 300 of the embodiment of the present application may also include a third blade 330 and a fourth blade 340 , and the third blade 330 and the fourth blade 340 Positioned and installed in the first stepped groove 111, the first blade 310 and the second blade 320 are arranged between the third blade 330 and the fourth blade 340; the third blade 330 is provided with a third through hole 331, and the fourth blade 340 is provided with a There is a fourth through hole 341, the third through hole 331 and the fourth through hole 341 have the same shape, and the central axis of the two is located on the optical axis of the lens module, the third through hole 331 and the fourth through hole 341 are used for The light in the overlapping area of the first through hole 311 and the second through hole 321 passes through.

It should be understood that the fourth blade 340 is the bottom blade of the iris 300, which can support other blades; at the same time, the fourth through hole 341 can pass through the overlapping of the first through hole 311 and the second through hole 321 The light in the region is blocked, and the light outside the overlapping area of the first through hole 311 and the second through hole 321 is blocked, so as to avoid forming stray light in the accommodating cavity and affecting the image quality. The third blade 330 is the top blade of the iris 300, and the third through hole 331 can also block the light outside the overlapping area of the first through hole 311 and the second through hole 321, so as to avoid forming At the same time, the third blade 330 can also cover and shield the first blade 310 and the second blade 320, so as to prevent the first blade 310 and the second blade 320 from being directly exposed and having appearance defects.

The embodiment of the present application does not limit the specific positioning and installation methods of the third blade 330 and the fourth blade 340. Three through holes 331, a fourth through hole 341 is opened on the fourth blade 340, the third through hole 331 can be positioned and matched with the positioning protrusion 114, and the fourth through hole 341 can be positioned and matched with the positioning protrusion 114, as shown in Fig. 2 and FIG. 7; of course, the lens barrel 100 can be provided with a positioning depression in the first stepped groove 111, and the third blade 330 and the fourth blade 340 can be provided with a protrusion structure that engages with the positioning depression, thereby achieving positioning fit.

In the embodiment of the present application, the relative motion of the first blade 310 and the second blade 320 may be various, for example, at least one of the first blade 310 and the second blade 320 is configured to be able to face the other In this way, the size of the aperture of the iris aperture 300 can be adjusted through the relative movement of the first blade 310 and the second blade 320 .

In another embodiment, as shown in FIGS. 2 to 6 , the first blade 310 and the second blade 320 of the embodiment of the present application can both be rotatably disposed in the first stepped groove 111; the driving device 400 includes a driving assembly 410 and connecting piece 420, the connecting piece 420 is movably arranged on the lens barrel 100, the driving assembly 410 is used to drive the connecting piece 420 to move; the moving path of the connecting piece 420 is located in the direction of the perpendicular line of the first connecting line, the second A connecting line is the connecting line between the rotation center of the first blade 310 and the rotation center of the second blade 320; the connecting piece 420 is passed through the first blade 310 and the second blade 320, and the connecting piece 420 drives the first blade 320 when moving. The blade 310 and the second blade 320 rotate.

Specifically, both the first blade 310 and the second blade 320 can rotate relative to the lens barrel 100 in the first stepped groove 111; In the embodiment of the protrusion 114, the first blade 310 and the second blade 320 can rotate with the positioning protrusion 114 as the fulcrum, that is, the positioning protrusion 114 is the rotation center. The connecting member 420 and the lens barrel 100 can move relatively, and the movement can be realized smoothly under the driving action of the driving assembly 410 .

At the same time, since the connecting piece 420 passes through the first blade 310 and the second blade 320, when the connecting piece 420 moves, it will interfere with the first blade 310 and the second blade 320, and then drive the first blade 310 and the second blade 320. The second blade 320 moves. Based on the technical feature that the moving path of the connecting piece 420 is located in the direction of the first connecting perpendicular, when the connecting piece 420 moves, it can drive the first blade 310 and the second blade 320 to rotate in opposite directions or in opposite directions, and then The iris 300 is switched between the first state and the second state.

Specifically, as shown in FIG. 5 and FIG. 6, in the process of switching the iris diaphragm 300 from the first state to the second state, the connecting member 420 moves from bottom to top as shown in the figure, and the first blade 310 and the second blade 320 first rotate in opposite directions and then rotate in opposite directions until the two rotate to form the large aperture light transmission area H2; in the process of switching the variable aperture 300 from the second state to the first state, the connecting member 420 moves from top to bottom as shown in the figure. Moving downward, the first blade 310 and the second blade 320 first rotate towards each other and then rotate against each other until they rotate to form the small aperture light transmission area H1.

In the embodiment of the present application, the driving assembly 410 may be of various types, such as a linear motor, a rack and pinion assembly, and the like. In another embodiment, as shown in FIG. 2 and FIG. 9 , the drive assembly 410 of the embodiment of the present application may include a magnet 411 and a drive coil 412 , and one of the magnet 411 and the drive coil 412 is arranged on the lens barrel 100 on, and the other is disposed on the connecting piece 420 .

It should be understood that, based on the principle of magnetic effect of current, the drive coil 412 will generate a first magnetic field around it after being energized, and there is a second magnetic field around the magnet 411. Since the magnetic poles with the same name repel each other and the magnetic poles with different names attract each other, in the first Under the interaction between the magnetic field and the second magnetic field, the magnet 411 and the driving coil 412 will be driven by each other, so as to indirectly drive the joint 420 to move the joint 420 .

Of course, the embodiment of the present application does not limit the specific relationship between the magnet 411, the driving coil 412, the lens barrel 100 and the connecting piece 420. As shown in FIG. Mounting slot 421, the mounting slot 421 is used to accommodate the magnet 411, which can improve the compactness of the structure, and the drive coil 412 is installed on the lens barrel 100; or, the magnet 411 is installed on the lens barrel 100, and the drive coil 412 is arranged on the lens barrel 100 Connector 420.

Further, as shown in FIGS. 2 to 8 , a guide groove 112 communicating with the first stepped groove 111 may be opened in the lens barrel 100 of the embodiment of the present application, and the connecting member 420 is movably disposed in the guide groove 112 . The guide groove 112 can provide a moving space for the connecting member 420, which can improve the compactness of the internal structure of the lens module. One end of the connecting piece 420 extends into the first stepped groove 111, which is convenient for setting the end of the connecting piece 420 to pass through the first blade 310 and the second blade 320, so as to drive the first blade 310 and the second blade 320 to rotate; In the embodiment where the variable aperture 300 includes the third blade 330 and the fourth blade 340 , both of them need to be opened with avoidance holes for the connecting member 420 to pass through and move.

At the same time, the lens module of the embodiment of the present application may also include a stop ring 500, the stop ring 500 is arranged in the first stepped groove 111, and the central axis of the stop ring 500 is located on the optical axis of the lens module; The ring 500 is provided with an avoidance space 510, and the connecting piece 420 is passed through the avoiding space 510. The stop ring 500 is limitedly fitted with the connecting piece 420 at the first end of the avoiding space 510, so as to prevent the connecting piece 420 from opening out of the guide groove 112. The first end is the end of the escape space 510 close to the opening end of the guide groove 112 .

Under this structural layout, the end of the joint 420 can extend into the avoidance space 510 and can move in the avoidance space 510; when the joint 420 moves to the first end of the avoidance space 510, the joint 420 Cooperate with the stop ring 500 in a limited position, so as to prevent the failure of the driving device 400 caused by the connecting piece 420 moving from the opening end of the guide groove 112 into the accommodating cavity of the lens barrel 100 . It can be seen that, based on the existence of the stop ring 500 , it can ensure that the driving device 400 realizes the driving function smoothly.

The embodiment of the present application does not limit the specific setting position of the stop ring 500, which can be directly set on the groove surface of the first stepped groove 111, or, as shown in FIG. On the one hand, at this time, the stop ring 500 can also play a role in limiting the variable aperture 300 .

In an optional solution, as shown in Figures 1 to 3, the lens barrel 100 of the embodiment of the present application may include an aperture carrier 110 and a barrel body 120, and one side of the aperture carrier 110 is provided with a light inlet and a first stepped groove 111, the side of the aperture carrier 110 facing away from the light inlet is provided with a second stepped groove 113; the lens group 200 includes a first lens subgroup 210 and a second lens subgroup 220, and the first lens subgroup 210 is installed on the second In the stepped groove 113 , the second lens subgroup 220 is disposed in the barrel body 120 ; the aperture carrier 110 is connected to the barrel body 120 through the side where the second stepped groove 113 is disposed.

Specifically, the lens barrel 100 of the embodiment of the present application has a split structure, and the aperture carrier 110 and the barrel body 120 are in a detachable connection relationship, which can improve the convenience of disassembly and assembly of the lens barrel 100 . In the embodiment of the present application, the lens group 200 is divided into two parts, the first lens subgroup 210 and the second lens subgroup 220. During assembly, the second lens subgroup 220 can be directly assembled in the barrel body 120, while The first lens subgroup 210 is assembled between the aperture carrier 110 and the barrel body 120 ; each lens in the lens group 200 can be fixed by dispensing glue during assembly.

Under this structural layout, the variable aperture 300 and the first lens subgroup 210 share the same aperture carrier 110, so that these components can be used as a whole module, thereby improving the convenience of installation and use; at the same time Since both the variable aperture 300 and the first lens subgroup 210 are embedded in the aperture carrier 110, the overall compactness of the lens module can be improved.

Based on the above structural layout, the aperture carrier 110 is configured to be calibrated by adjusting the relative position of the two when it is connected to the barrel body 120 . Specifically, when the variable aperture 300 is installed on the aperture carrier 110, since the first lens subgroup 210 is also installed on the aperture carrier 110, the variable aperture can be adjusted by calibrating the structural relationship during the installation process. The light entering direction of the aperture 300 is consistent with the optical axis direction of the first lens subgroup 210; at the same time, the operator can subsequently calibrate the optical axis direction of the lens module, that is, the first lens subgroup 210 and the second lens subgroup The optical axis of 220 is calibrated to be collinear, so that the light entering direction of the iris 300 can be consistent with the optical axis direction of the lens module, which can significantly improve the light distribution quality of the lens module.

Of course, the embodiment of the present application does not limit the specific configuration of the lens barrel 100 , which may also be an integral structure. The embodiment of the present application does not limit the specific quantity of the first lens subgroup 210 and the second lens subgroup 220. As shown in FIG. Press and fasten.

As shown in Figures 1 to 3, the embodiment of the present application also provides a camera, which includes a photosensitive element and the lens module mentioned in any of the aforementioned solutions, so that the camera has the beneficial effects of any of the aforementioned solutions , which will not be repeated here. Wherein, the photosensitive element is an imaging component of the camera, and the photosensitive element is used to receive light passing through the lens module for imaging.

An embodiment of the present application also provides an electronic device, which includes a housing and the aforementioned camera, where the camera is installed in the housing. In the embodiment of the present application, the electronic device may be a smart phone, a tablet computer, a wearable device, etc., and the embodiment of the present application does not limit the specific type of the electronic device.

In combination with the foregoing, based on the lens module of the embodiment of the present application, the overall height dimension of the camera can be reduced, thereby achieving the effect of improving the convex hull problem of the electronic device.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A lens module, including a lens barrel, a lens group, a variable aperture and a driving device, wherein:

The lens barrel has a light inlet and an accommodating cavity, the light inlet communicates with the accommodating cavity, and the lens group is arranged in the accommodating cavity;

The variable aperture is installed on the lens barrel, and the variable aperture is located on the side of the lens barrel where the light inlet is provided; the lens group has a raised portion, and the raised portion protrudes is set in the variable aperture;

The driving device is connected with the variable aperture, and the driving device is used for adjusting the size of the aperture of the variable aperture.
The lens module according to claim 1, wherein the lens barrel is provided with a first stepped groove on one side of the light inlet, the first stepped groove is arranged around the light inlet, and the variable The aperture is disposed in the first stepped groove, so that the raised portion protrudes from the variable aperture.
The lens module according to claim 1, wherein the protrusion protrudes from the top surface of the iris.
The lens module according to claim 2, wherein the lens barrel includes an aperture carrier and a barrel main body, the light inlet and the first stepped groove are arranged on one side of the aperture carrier, and the aperture carrier A second stepped groove is provided on the side facing away from the light inlet;

The lens group includes a first lens subgroup and a second lens subgroup, the first lens subgroup is installed in the second stepped groove, and the first lens subgroup has the raised portion; The second lens subgroup is arranged in the barrel main body; the aperture carrier is connected to the barrel main body through the side where the second stepped groove is provided.
The lens module according to claim 2, wherein the variable aperture includes a first blade and a second blade, and the first blade and/or the second blade are movably arranged on the first step In the groove, and the two are stacked along the optical axis direction of the lens module;

The first blade is provided with a first through hole, the second blade is provided with a second through hole, and the driving device is used to drive the first blade and the second blade to generate relative motion to change the The size of the aperture aperture.
The lens module according to claim 5, wherein the first through hole includes a first light-transmitting portion and a second light-transmitting portion connected to each other, and the area of the first light-transmitting portion is smaller than that of the second light-transmitting portion. The area of the light part; the second through hole includes a third light transmission part and a fourth light transmission part connected to each other, and the area of the third light transmission part is smaller than the area of the fourth light transmission part;

The variable aperture has a first state and a second state, and when the variable aperture is in the first state, the first light-transmitting part and the third light-transmitting part overlap to form a small aperture Light transmission area: when the variable aperture is in the second state, the second light transmission part and the fourth light transmission part overlap to form a large aperture light transmission area.
The lens module according to claim 6, wherein, the edge of the first through hole and the edge of the second through hole are arc-shaped, so that the light-transmitting area of the small aperture and the The large aperture light transmission areas are all circular light transmission areas.
The lens module according to claim 5, wherein the variable aperture further comprises a third blade and a fourth blade, and the third blade and the fourth blade are positioned and installed in the first stepped groove, The first blade and the second blade are disposed between the third blade and the fourth blade; the third blade is provided with a third through hole, and the fourth blade is provided with a fourth through hole , the shape of the third through hole is the same as that of the fourth through hole, and the central axes of the two are located on the optical axis of the lens module, the third through hole and the fourth through hole are used for Let the light in the overlapping area of the first through hole and the second through hole pass through.
The lens module according to claim 5, wherein both the first blade and the second blade are rotatably disposed in the first stepped groove; the driving device includes a driving assembly and a connecting piece, and the The connecting member is movably arranged on the lens barrel, and the driving assembly is used to drive the connecting member to move; the moving path of the connecting member is located in the direction of the perpendicular line of the first connecting line, and the second A connecting line is a connecting line between the rotation center of the first blade and the rotation center of the second blade;

The connecting piece passes through the first blade and the second blade, and the connecting piece drives the first blade and the second blade to rotate when moving.
The lens module according to claim 9, wherein the driving assembly includes a magnet and a driving coil, and among the magnet and the driving coil, one of them is arranged on the lens barrel, and the other is arranged on the on the connector.
The lens module according to claim 9, wherein a guide groove communicating with the first stepped groove is opened in the lens barrel, the connecting member is movably arranged in the guide groove, and the One end of the connector extends into the first stepped groove; the lens module also includes a stop ring, the stop ring is arranged in the first stepped groove, and the central axis of the stop ring is located at on the optical axis of the lens module;

The stop ring is provided with an avoidance space, and the connecting piece is passed through the avoidance space, and the stop ring is limitedly matched with the connecting piece at the first end of the avoidance space, so as to prevent the The connecting piece is moved out from the opening end of the guiding groove, and the first end is an end of the avoidance space close to the opening end of the guiding groove.
A camera, comprising a photosensitive element and the lens module according to any one of claims 1 to 11, the photosensitive element is used to receive light passing through the lens module for imaging.
An electronic device comprising a casing and the camera according to claim 12, the camera being installed on the casing.