CN114994883B

CN114994883B - Optical lens and camera module

Info

Publication number: CN114994883B
Application number: CN202110226971.8A
Authority: CN
Inventors: 杜佳玮; 叶林敏; 袁栋立; 黄桢; 赵波杰
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2023-10-27
Anticipated expiration: 2041-03-01
Also published as: CN114994883A; CN116981965A; WO2022183960A1

Abstract

The invention discloses an optical lens and an image pickup module, wherein the optical lens comprises an object side lens group, an image side lens group and a lens component which is held between the object side lens group and the image side lens group. The lens assembly further comprises a deformable light transmitting body and two light transmitting deformation limiting layers, wherein the two deformation limiting layers are arranged on two opposite sides of the deformable light transmitting body, and when edge portions of the two deformation limiting layers are stressed to enable at least one deformation limiting layer in the two deformation limiting layers to be bent and deformed so as to allow the edge portions of the two deformation limiting layers to have displacement close to each other, the deformable light transmitting body is extruded by the two deformation limiting layers to deform, and the curvature radius of the deformable light transmitting body is changed.

Description

Optical lens and camera module

Technical Field

The present invention relates to the field of optical imaging, and in particular, to an optical lens and an imaging module.

Background

In recent years, camera modules are widely used in electronic devices such as smart phones to assist the smart phones in achieving functions such as capturing images and paying. The zoom camera module refers to a camera module with adjustable focal length, and comprises a photosensitive assembly and an optical lens arranged on a photosensitive path of the photosensitive assembly, wherein the optical lens further comprises a driving motor and a lens group, and when the lens group is driven by the driving motor to move along the optical axis direction, the focal length of the camera module is adjusted. In other words, in the existing camera module, a larger travel space must be reserved for the lens assembly to move along the optical axis direction to realize zooming of the camera module, so that the overall height dimension of the camera module cannot be substantially reduced, and the camera module does not conform to the trend of thinning of electronic equipment.

Disclosure of Invention

It is an object of the present invention to provide an optical lens and an image capturing module, wherein the optical lens provides at least one lens assembly, and a radius of curvature of a deformable transparent body of the lens assembly can be adjusted to achieve zooming of the image capturing module.

It is an object of the present invention to provide an optical lens and an image pickup module, wherein the radius of curvature of the deformable light-transmitting body of the lens assembly can be adjusted in a continuously variable manner to achieve continuous zooming of the image pickup module.

It is an object of the present invention to provide an optical lens and an image capturing module, wherein the optical lens provides an object side lens group and an image side lens group, and the lens assembly is held between the image side lens group and the object side lens group, so that a lens end face of the optical lens is ensured to have a smaller size, to allow the image capturing module to be implemented as a front-end image capturing module of an electronic device or other position with a smaller movable space.

An object of the present invention is to provide an optical lens and an image capturing module, in which the image side lens assembly can be driven to move along the optical axis direction of the optical lens, so as to achieve focusing of the image capturing module. It can be appreciated that, on the basis that the optical lens of the present invention allows the zoom of the image capturing module to be achieved by adjusting the radius of curvature of the deformable lens body of the lens assembly, the optical lens can reserve a smaller space for the image side lens group to move, which is beneficial to reducing the height of the optical lens and substantially reducing the height dimension of the image capturing module as a whole, so that the image capturing module is particularly suitable for light and thin electronic equipment.

An object of the present invention is to provide an optical lens and an image pickup module in which the image pickup module is further provided with the lens assembly between the image side lens group and the photosensitive assembly in addition to the lens assembly provided between the image side lens group and the object side lens group, so that the image pickup module can have a large focusing and zooming range even in the case where the image side lens group is not required to be driven in the optical axis direction, and thus the overall height dimension of the image pickup module can be further reduced.

According to one aspect of the present invention, there is provided an optical lens comprising:

an object side lens group;

an image side lens group; and

a lens assembly, wherein the lens assembly is held between the object side lens group and the image side lens group, wherein the lens assembly further comprises a deformable light transmitting body and two light transmitting deformation restricting layers, the two deformation restricting layers being disposed on opposite sides of the deformable light transmitting body, wherein when edge portions of the two deformation restricting layers are forced to bend and deform at least one of the two deformation restricting layers to allow the edge portions of the two deformation restricting layers to have displacement close to each other, the deformable light transmitting body is deformed by being pressed by the two deformation restricting layers, thus changing the curvature radius of the deformable light transmitting body.

According to an embodiment of the invention, both of the deformation limiting layers are light transmissive film layers, such that both of the deformation limiting layers are capable of bending deformation.

According to one embodiment of the present invention, one of the two deformation limiting layers is a light-transmitting film layer and the other deformation limiting layer is a light-transmitting panel, so that the light-transmitting panel is maintained flat when the light-transmitting film layer is bent and deformed.

According to an embodiment of the present invention, the radius of the deformation limiting layer is larger than the radius of the deformable transparent body, so that a space for accommodating the deformable transparent body after deformation is reserved between the two deformation limiting layers.

According to one embodiment of the invention, the deformable light transmissive body is a solid or gel.

According to an embodiment of the present invention, the optical lens further includes a lens driver to which the image side lens group is drivably connected to allow the lens driver to drive the image side lens group to move in the optical axis direction of the optical lens.

According to one embodiment of the present invention, the optical lens further comprises a lens actuator, one of the two deformation limiting layers of the lens assembly being drivably connected to the lens actuator to allow the lens actuator to press the edge portions of the deformation limiting layers to force the edge portions of the two deformation limiting layers.

According to an embodiment of the present invention, the optical lens further includes a fixing ring disposed at an object side end of the image side barrel of the image side lens group, wherein two of the deformation restricting layers are respectively defined as an object side restricting layer and an image side restricting layer, the image side restricting layer is disposed at the fixing ring, and the object side restricting layer is drivably connected to the lens driver.

According to an embodiment of the present invention, the optical lens further includes a fixing ring disposed at an image side end of the object side barrel of the object side lens group, wherein two of the deformation restricting layers are respectively defined as an object side restricting layer and an image side restricting layer, the object side restricting layer is disposed at the fixing ring, and the image side restricting layer is drivably connected to the lens driver.

According to an embodiment of the present invention, the optical lens further includes a lens extension arm including a traction portion and a pressing ring, a free end of the traction portion being drivably connected to the lens driver, a connection end of the traction portion extending upward to a plane where an outer side surface of the object side confining layer of the lens assembly is located, the pressing ring extending from the connection end of the traction portion toward the outer side surface of the object side confining layer such that the pressing ring and the object side confining layer have overlapping portions in a height direction.

According to an embodiment of the present invention, the optical lens further includes a lens extension arm including a traction portion of which a free end is drivably connected to the lens driver, the connection end of the traction portion extending upward to a plane where an outer side surface of the image side confining layer of the lens assembly is located, and a pressing ring extending from the connection end of the traction portion toward the outer side surface of the image side confining layer so that the pressing ring and the image side confining layer have overlapping portions in a height direction.

According to an embodiment of the invention, an outer side surface of the object side confining layer is attached to the pressing ring.

According to an embodiment of the present invention, an outer side surface of the image side confining layer is attached to the pressing ring.

According to an embodiment of the present invention, the optical lens further includes an outer lens assembly, the image side lens group being held between the lens assembly and the outer lens assembly, wherein the outer lens assembly includes the deformable light transmitting body and two light transmitting deformation restricting layers provided on opposite sides of the deformable light transmitting body, wherein when edge portions of the two deformation restricting layers are forced to bend and deform at least one of the two deformation restricting layers to allow the edge portions of the two deformation restricting layers to have displacement close to each other, the deformable light transmitting body is pressed and deformed by the two deformation restricting layers, thus changing a radius of curvature of the deformable light transmitting body.

According to an embodiment of the present invention, the optical lens further comprises an outer lens driver, one of the two deformation limiting layers of the outer lens assembly being drivably connected to the outer lens driver to allow the outer lens driver to press the edge portions of the deformation limiting layers to force the edge portions of the two deformation limiting layers.

According to an embodiment of the present invention, the optical lens further includes a fixing ring provided at an object side end of an image side barrel of the image side lens group and an outer fixing ring provided at an image side end of the image side barrel, wherein the two deformation restricting layers of the lens assembly and the two deformation restricting layers of the outer lens assembly are defined as an object side restricting layer and an image side restricting layer, respectively; wherein the image side confining layer of the lens assembly is disposed at the stationary ring, the object side confining layer being drivably connected to the lens driver; wherein the object-side confining layer of the outer lens assembly is disposed on an outer stationary ring of the search, and the image-side confining layer is drivably connected to the lens driver.

According to an embodiment of the present invention, the optical lens further includes a fixing ring provided at an image side end of an object side barrel of the object side lens group and an outer fixing ring provided at an image side end of an image side barrel of the image side lens group, wherein the two deformation restricting layers of the lens assembly and the two deformation restricting layers of the outer lens assembly are defined as an object side restricting layer and an image side restricting layer, respectively; wherein the object side confining layer of the lens assembly is disposed at the stationary ring, the image side confining layer being drivably connected to the lens driver; wherein the object-side confining layer of the outer lens assembly is disposed at the outer stationary ring and the image-side confining layer is drivably connected to the lens driver.

According to one embodiment of the present invention, the optical lens further comprises a lens extension arm and an outer lens extension arm, the lens extension arm and the outer lens extension arm respectively comprising a traction portion and a compression ring; wherein the free end of the traction part of the lens extension arm is drivably connected to the lens driver, the connection end of the traction part extends upwards to a plane where the outer side surface of the object side limiting layer of the lens assembly is located, and the pressing ring extends from the connection end of the traction part towards the outer side surface of the object side limiting layer so that the pressing ring and the object side limiting layer have an overlapping part in the height direction; the free end of the traction part of the outer lens extension arm is drivably connected to the outer lens driver, the connecting end of the traction part extends downwards to the plane of the outer side surface of the image side limiting layer of the outer lens assembly, and the pressing ring extends from the connecting end of the traction part to the outer side surface direction of the image side limiting layer so that the pressing ring and the image side limiting layer have an overlapped part in the height direction.

According to one embodiment of the present invention, the optical lens further comprises a lens extension arm and an outer lens extension arm, the lens extension arm and the outer lens extension arm respectively comprising a traction portion and a compression ring; wherein the free end of the traction part of the lens extension arm is drivably connected to the lens driver, the connection end of the traction part extends upwards to a plane where the outer side surface of the image side limiting layer of the lens assembly is located, and the pressing ring extends from the connection end of the traction part towards the outer side surface direction of the image side limiting layer so that the pressing ring and the image side limiting layer have an overlapped part in the height direction; the free end of the traction part of the outer lens extension arm is drivably connected to the outer lens driver, the connecting end of the traction part extends downwards to the plane of the outer side surface of the image side limiting layer of the outer lens assembly, and the pressing ring extends from the connecting end of the traction part to the outer side surface direction of the image side limiting layer so that the pressing ring and the image side limiting layer have an overlapped part in the height direction.

According to an embodiment of the present invention, the optical lens further includes a lens driver to which the object side lens group and the image side lens group are drivably connected, respectively, to allow the lens driver to drive the object side lens group and the image side lens group to move in an optical axis direction of the optical lens.

According to an embodiment of the present invention, the optical lens further includes a housing having an inner space and a perforation communicating with the inner space, wherein the lens assembly, the lens extension arm, the lens driver, the image side lens group, and the lens driver are respectively accommodated in the inner space of the housing, wherein the object side lens group is attached to the housing to close the perforation of the housing.

According to an embodiment of the present invention, the optical lens further includes a housing having an inner space and a perforation communicating with the inner space, wherein the lens assembly, the lens extension arm, the lens driver, the image side lens group, the lens driver, the outer lens assembly, the outer lens extension arm, and the outer lens driver are respectively accommodated in the inner space of the housing, wherein the object side lens group is attached to the housing while closing the perforation of the housing.

The camera module, it includes sensitization subassembly and by set up in sensitization route optical lens of sensitization subassembly, wherein optical lens includes:

An object side lens group;

an image side lens group; and

Drawings

Fig. 1 is a schematic cross-sectional view of an image capturing module according to a first preferred embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an image capturing module according to a second preferred embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of an image capturing module according to a third preferred embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of an image capturing module according to a fourth preferred embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a lens assembly and a deformation process of the camera module according to the above preferred embodiments of the present invention.

Fig. 6 is a schematic cross-sectional view of another lens assembly and a deformation process of the camera module according to the above preferred embodiments of the present invention.

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.

Summary of the application

Fig. 1 shows an image pickup module according to a first preferred embodiment of the present invention, fig. 2 shows an image pickup module according to a second preferred embodiment of the present invention, fig. 3 shows an image pickup module according to a third preferred embodiment of the present invention, and fig. 4 shows an image pickup module according to a fourth preferred embodiment of the present invention, wherein the image pickup module includes a photosensitive member and an optical lens held in a photosensitive path of the photosensitive member, the optical lens includes an object side lens group, an image side lens group, and a lens assembly held between the object side lens group and the image side lens group, the optical lens achieves focusing and/or zooming of the image pickup module by allowing a shape of the lens assembly to be adjusted, thus substantially reducing an overall height dimension of the image pickup module, to be advantageous for the image pickup module to be applied to an electronic apparatus pursuing light and slim.

Exemplary disclosure of the invention

Referring to fig. 1 of the drawings, an image capturing module according to a first preferred embodiment of the present invention is disclosed and described in the following description, wherein the image capturing module comprises a photosensitive element 10 and an optical lens 20 held in a photosensitive path of the photosensitive element 10, wherein the optical lens 20 comprises at least one object side lens group 21, at least one image side lens group 22 and at least one lens group 23, all lens groups on an object side of at least one lens group 23 being the object side lens group 21 and all lens groups on an image side being the image side lens group 22, wherein a shape of the lens group 23 can be adjusted to achieve zooming of the image capturing module.

Specifically, in this specific example of the image capturing module shown in fig. 1, the optical lens 20 includes one of the object side lens group 21, one of the image side lens group 22, and one of the lens assemblies 23, wherein the lens assembly 23 is held between the object side lens group 21 and the image side lens group 22, and zooming of the image capturing module can be achieved by adjusting the shape of the lens assembly 23. It will be appreciated that the object side lens group 21, the lens assembly 23 and the image side lens group 22 are coaxially disposed to allow the optical lens 20 to form an optical system, i.e., the optical axis of the optical lens 20 passes through the centers of the object side lens group 21, the lens assembly 23 and the image side lens group 22 in order.

Further, the object side lens group 21 includes an object side lens barrel 211 and at least one object side lens 212 disposed along a height direction of the object side lens barrel 211. The image side lens group 22 includes an image side lens barrel 221 and at least one image side lens 222 disposed along a height direction of the image side lens barrel 221. The lens assembly 23 includes a deformable transparent body 231 and two transparent deformation restricting layers 232, the two deformation restricting layers 232 are disposed on opposite sides of the deformable transparent body 231, wherein when edge portions of the two deformation restricting layers 232 are pressed, at least one deformation restricting layer 232 of the two deformation restricting layers 232 is bent and deformed to allow the edge portions of the two deformation restricting layers 232 to have a displacement close to each other, so that the two deformation restricting layers 232 press the deformable transparent body 231 to change the radius of curvature of the deformable transparent body 231, and thus the shape of the lens assembly 23 is adjusted to change the path of light passing through the optical lens 20, and the focal length of the camera module is changed. Preferably, the deformable light transmitting body 231 has a high refractive index and a high transmittance, for example, the deformable light transmitting body 231 has a transmittance of at least 90% and a refractive index of at least 1.2, in such a way that the optical performance of the lens assembly 23 before and after deformation can be ensured.

Fig. 5 shows a specific example of the lens assembly 23, in which both the deformation restricting layers 232 are implemented as light-transmitting film layers 232a, that is, two light-transmitting film layers 232a are disposed on opposite sides of the deformable light-transmitting body 231, wherein the deformable light-transmitting body 231 is deformed by the two light-transmitting film layers 232a being pressed to change the radius of curvature of the opposite sides of the deformable light-transmitting body 231 when edge portions of the two light-transmitting film layers 232a are forced to bend and deform the two light-transmitting film layers 232a to allow the edge portions of the two light-transmitting film layers 232a to have displacement close to each other.

Fig. 6 shows another specific example of the lens assembly 23, wherein one of the deformation restricting layers 232 is implemented as a light transmitting film layer 232a and the other deformation restricting layer 232 is implemented as a light transmitting panel 232b, that is, the light transmitting film layer 232a and the light transmitting panel 232b are disposed at opposite sides of the deformable light transmitting body 231, wherein the light transmitting film layer 232a is bent and deformed and the light transmitting panel 232b is maintained flat while the edge portions of the light transmitting film layer 232a and the light transmitting panel 232b are forced to allow the edge portions of the light transmitting film layer 232a to move toward the light transmitting panel 232b such that the edge portions of the light transmitting film layer 232a have a displacement toward the light transmitting panel 232b, and the deformable light transmitting body 231 is deformed by being pressed by the light transmitting film layer 232a and the light transmitting panel 232b to change the radius of curvature of the deformable light transmitting body 231 attached to the side of the light transmitting film layer 232 a. In other words, unlike the lens assembly 23 shown in fig. 5, in this specific example of the lens assembly 23 shown in fig. 6, the deformable light transmitting body 231 allows only one side to be press-deformed, i.e., the deformable light transmitting body 231 allows only the side attached to the light transmitting film layer 232a to be press-deformed, while preventing the side attached to the light transmitting panel 232b from being press-deformed. It should be noted that the material of the light-transmitting panel 232b is not limited in the lens assembly 23 of the present invention, as long as it has good light transmittance and hardness. For example, the light-transmitting panel 232b may be made of glass, that is, the light-transmitting panel 232b is a glass plate that does not bend when the edge portion of the light-transmitting film layer 232a is pressed to press the deformable light-transmitting body 231.

With continued reference to fig. 1, the deformable light transmissive body 231 of the lens assembly 23 is made of a solid or gel material, for example, the deformable light transmissive body 231 is a compressible organic polymer or elastomer, such that the lens assembly 23 of the optical lens 20 of the present invention not only does not require a tight housing to maintain the liquid material in a form that facilitates controlling the size of the lens assembly 23 and improving the design flexibility of the lens assembly 23, but also the center of gravity of the deformable light transmissive body 231 of the lens assembly 23 can remain stable, thereby avoiding shifting of the optical focal length of the camera module due to gravity.

The deformable light transmitting body 231 and the deformation restricting layer 232 of the lens assembly 23 may have a disc shape, that is, a projection view of the deformable light transmitting body 231 in a direction perpendicular to a central axis of the deformable light transmitting body 231 and a projection view of the deformation restricting layer 232 in a direction perpendicular to a central axis of the deformation restricting layer 232 are both circular, and the central axes of the deformable light transmitting body 231 and the deformation restricting layer 232 coincide, so that when forces are uniformly applied in the entire circumferential directions of the edge portions of the two deformation restricting layers 232, the entire circumferential directions of the deformable light transmitting body 231 can be uniformly subjected to pressing forces from the two deformation restricting layers 232, thereby allowing the degree of deformation in the circumferential directions of the deformable light transmitting body 231 to be uniform to avoid tilting.

Further, the radius of the deformation limiting layer 232 of the lens assembly 23 is larger than that of the deformable transparent body 231, so that a space for the deformable transparent body 231 to extend around due to extrusion deformation is reserved between the two deformation limiting layers 232, in this way, the deformable transparent body 231 can be kept between the two deformation limiting layers 232 all the time during deformation of the deformable transparent body 231 caused by extrusion of the deformable transparent body 231 by the two deformation limiting layers 232 on opposite sides of the deformable transparent body 231, so as to ensure reliability and stability of the optical lens 20.

In some examples of the camera module of the present invention, the deformable light transmitting body 231 of the lens assembly 23 has a thickness ranging from 0.1mm to 1mm, preferably from 0.2mm to 0.8mm, the deformable light transmitting body 11 has a radius ranging from 1mm to 3mm, the deformation restricting layer 232 has a thickness ranging from 0.01mm to 0.3mm, and the deformation restricting layer 232 has a radius ranging from 1.5mm to 4mm. For example, in a specific example of the image capturing module, the thickness dimension of the deformable transparent body 231 of the lens assembly 23 is 0.3mm to ensure the zooming stroke of the image capturing module, the radius dimension of the deformable transparent body 231 is 1.8mm to allow the lens assembly 23 to have a larger light passing area so that the optical lens 20 is suitable for the image capturing module having a large image plane, and the thickness dimension of the deformation limiting layer 232 is 0.05mm and the radius dimension is 2.2mm to ensure that a sufficient space is reserved between the two deformation limiting layers 232 for accommodating the deformable transparent body 231 after deformation.

Referring to fig. 5 and 6, in both embodiments of the lens assembly 23, when the entire circumferential direction of the edge portions of the two deformation restricting layers 232 is pressurized, at least one of the deformation restricting layers 232 is bent and deformed such that the edges of the two deformation restricting layers 232 have a displacement close to each other to allow the two deformation restricting layers 232 to press the deformable light transmitting body 231 on opposite sides of the deformable light transmitting body 231, at which time the radius of curvature of at least one side of the deformable light transmitting body 231 is adjusted to change the path of light passing through the optical lens 20. For example, in this particular example of the lens assembly 23 shown in fig. 5, both of the deformation limiting layers 232 are capable of bending deformation to allow the radius of curvature of both sides of the deformable light transmissive body 231 to be adjusted to change the path of light through the optical lens 20; whereas in this particular example of the lens assembly 23 shown in fig. 6, the deformation restricting layer 232 on the upper side is curved and deformed and the deformation restricting layer 232 on the lower side is maintained flat to allow the radius of curvature of the upper side of the deformable light transmitting body 231 to be adjusted while the lower side is maintained flat, thus changing the path of light rays passing through the optical lens 20.

It will be appreciated that the deformation restricting layer 232 of the lens assembly 23 restricts the deformation of the deformable light transmitting body 231 to achieve a desired optical effect, for example, one of the deformation modes of the deformable light transmitting body 231 is that the distance between the opposite sides of the deformable light transmitting body 231 is reduced and the peripheral edge of the deformable light transmitting body 231 extends in a direction approaching the peripheral edge of the deformation restricting layer 232, that is, the distance between the peripheral edge of the deformable light transmitting body 231 and the central axis of the lens assembly 23 is greater in size after the deformation of the deformable light transmitting body 231 than in size before the deformation of the deformable light transmitting body 231; the second way of deformation of the deformable transparent body 231 is that the radius of curvature of the deformable transparent body 231 can be adjusted in a continuously variable manner to achieve continuous zooming of the camera module.

With continued reference to fig. 1, for ease of illustration and understanding, the deformation limiting layer 232 on the upper side of the lens assembly 23 is defined as an object side limiting layer 2321, and the deformation limiting layer 232 on the lower side of the lens assembly 23 is defined as an image side limiting layer 2322. It should be noted that the deformation limiting layers 232 and 232 on the upper side and the deformation limiting layers 232 and 232 on the lower side of the lens assembly 23 are respectively defined as the object side limiting layer 2321 and the image side limiting layer 2322 only for distinguishing the positions of the two deformation limiting layers 232, and not limiting the types of the two deformation limiting layers 232, for example, the object side limiting layer 2321 and the image side limiting layer 2322 may be both the light-transmitting film layer 232a, or the object side limiting layer 2321 is the light-transmitting film layer 232a, the image side limiting layer 2322 is the light-transmitting panel 232b, or the object side limiting layer 2321 is the light-transmitting panel 232b, and the image side limiting layer 2322 is the light-transmitting film layer 232a.

The lens assembly 23 is disposed at an object side end of the image side barrel 221 of the image side lens group 22 to allow the lens assembly 23 to be held between the object side lens group 21 and the image side lens group 22. Specifically, in this preferred example of the image capturing module shown in fig. 1, the optical lens 20 further includes a fixing ring 24, the fixing ring 24 defining a center channel 241, wherein the fixing ring 24 is disposed at an object side end of the image side barrel 221 of the image side lens group 22, the image side restricting layer 2322 of the lens assembly 23 is attached to the fixing ring 24 to allow the lens assembly 23 to be supported by the fixing ring 24, and the center channel 241 of the fixing ring 24 corresponds to a center of the image side lens group 22 and a center of the lens assembly 23, respectively, such that the lens assembly 23 is disposed at the object side end of the image side barrel 221 of the image side lens group 22. Preferably, the radial dimension of the central channel 241 of the fixation ring 24 is larger than the radial dimension of the deformable light transmissive body 231 of the lens assembly 23, for example in this specific example of fig. 1, the radial dimension of the central channel 241 of the fixation ring 24 is 1.95mm.

It should be noted that the manner in which the fixing ring 24 is disposed at the object side end of the image side lens barrel 221 of the image side lens group 22 is not limited, for example, the fixing ring 24 may be attached to the object side end of the image side lens barrel 221 of the image side lens group 22, or the fixing ring 24 may be integrally formed at the object side end of the image side lens barrel 221 of the image side lens group 22.

With continued reference to fig. 1, the optical lens 20 further provides a lens actuator 25, wherein an edge portion of the object-side limiting layer 2321 of the lens assembly 23 is drivably connected to the lens actuator 25, wherein when the lens actuator 25 is in an operating state to press the edge portion of the object-side limiting layer 2321 of the lens assembly 23, the edge portion of the object-side limiting layer 2321 has a displacement toward an edge portion of the image-side limiting layer 2322 to bend and deform the object-side limiting layer 2321, such that the object-side limiting layer 2321 and the image-side limiting layer 2322 respectively press the deformable light-transmitting body 231 on opposite sides of the deformable light-transmitting body 231 to adjust a radius of curvature of the deformable light-transmitting body 231 to change a light path passing through the optical lens 20, thereby realizing zooming of the camera module.

Further, the optical lens 20 provides a lens extension arm 26, the lens extension arm 26 includes a pressing ring 261 and at least one traction portion 262 extending downward from an outer side of the pressing ring 261, the pressing ring 261 of the lens extension arm 26 is configured to press the object side limiting layer 2321 of the lens assembly 23, the traction portion 262 is configured to extend from the lens assembly 23 toward an image side end of the image side lens group 22, and the traction portion 262 is configured to be connected to the lens driver 25, such that a height position of the lens driver 25 can be lowered.

Specifically, referring to fig. 1, the lens driver 25 is disposed at a position outside and close to an image side end of the image side barrel 221 of the image side lens group 22, wherein a free end of the traction portion 262 of the lens extension arm 26 is connected to the lens driver 25, and a connection end of the traction portion 262 extends upward to a plane position where an outer side surface of the object side confining layer 2321 of the lens assembly 23 is located, and the pressing ring 261 of the lens extension arm 26 extends from the connection end of the traction portion 262 toward the outer side surface of the object side confining layer 2321 of the lens assembly 23 such that the pressing ring 261 and the object side confining layer 2321 have overlapping portions in a height direction, so that the pressing ring 261 of the lens extension arm 26 can press the object side confining layer 2321 of the lens assembly 23. Preferably, the outer side surface of the object side confinement layer 2321 of the lens assembly 23 is configured to be attached to the surface of the pressing ring 261 of the lens extension arm 26. More preferably, the outer side of the object side limiting layer 2321 of the lens assembly 23 and the surface of the pressing ring 261 of the lens extension arm 26 are glued.

Preferably, the pressing ring 261 of the lens extension arm 26 is arranged to be circumferentially continuous to ensure that the entire circumferential direction of the object side limiting layer 2321 of the lens assembly 23 is uniformly stressed. For example, the pressing ring 261 of the lens extension arm 26 is a flat plate-like object having a square or circular shape in a plan view, and the pressing ring 261 has a light path to correspond to the center of the lens assembly 23, so that the pressing ring 261 is circumferentially continuous without blocking the light path of the optical lens 20. When the traction portions 262 of the lens extension arm 26 are implemented as one, the traction portions 262 are preferably circumferentially continuous, and when the traction portions 262 of the lens extension arm 26 are implemented as two or more, the traction portions 262 are equally spaced apart, so that the driving force provided by the lens driver 25 can uniformly act on the lens assembly 23 through the lens extension arm 26 to avoid tilting of the shape of the lens assembly 23 during adjustment.

With continued reference to fig. 1, the image side lens group 22 of the image capturing module of the present invention can be driven to move along the optical axis direction of the optical lens 20, so as to achieve focusing of the image capturing module. It will be appreciated that, on the basis of the manner in which the optical lens 20 of the present invention allows the radius of curvature of the deformable transparent body 231 of the lens assembly 23 to be adjusted to achieve zooming of the image capturing module, the optical lens 20 may reserve a smaller space for the image side lens group 22 to move, which is advantageous for reducing the height of the optical lens 20 to substantially reduce the height dimension of the image capturing module as a whole, thereby making the image capturing module particularly suitable for use in light and slim electronic devices. Specifically, the optical lens 20 includes a lens driver 27, and the image side lens group 22 is drivably connected to the lens driver 27, where the lens driver 27 is configured to drive the image side lens group 22 to move along the optical axis direction of the optical lens 20 to achieve focusing of the image capturing module. Preferably, the lens driver 27 is provided at an image side end of the image side barrel 221 of the image side lens group 22.

In this specific example of the image pickup module shown in fig. 1, the lens driver 25 is provided on the upper side of the lens driver 27, that is, the lens driver 25 and the lens driver 27 are arranged in a vertically-structured manner. Alternatively, in other specific examples of the image pickup module, the lens driver 25 is disposed outside the lens driver 27, that is, the lens driver 25 and the lens driver 27 are arranged in an inside-outside structure.

Further, the optical lens 20 includes a housing 28, the housing 28 has an inner space 281 and a through hole 282 communicating with the inner space 281, wherein the lens assembly 23, the image side lens assembly 22, the lens actuator 25, the lens extension arm 26 and the lens actuator 27 are respectively disposed in the inner space 281 of the housing 28, and the object side lens assembly 21 is disposed in the housing 28 to close the through hole 282 of the housing 28, such that the relative positions of the object side lens assembly 21 and the photosensitive assembly 10 are unchanged when the shape of the lens assembly 23 is adjusted to realize zooming of the image capturing module. And, the object side lens group 21 is used for blocking contaminants such as moisture and/or dust from entering the inner space 281 from the through hole 282 of the housing 28, so as to realize waterproof and dustproof effects of the camera module. Alternatively, in other examples of the camera module of the present invention, the object lens barrel 211 of the object lens group 21 may be disposed on the pressing ring 261 of the lens extension arm 26, so that the lens extension arm 26 moves the object lens group 21 synchronously when the pressing ring 261 is disposed to press the object side limiting layer 2321 of the lens assembly 23. Alternatively, in other examples of the image pickup module of the present invention, the object side barrel 211 of the object side lens group 21 may be directly provided to the image side barrel 221 of the image side lens group 22, or the object side barrel 211 of the object side lens group 21 and the image side barrel 221 of the image side lens group 22 may be provided as a unitary structure, and the unitary barrel may be provided with perforations to allow the pressing ring 261 to be held inside the unitary barrel and the traction 262 to be held outside the unitary barrel.

With continued reference to fig. 1, the photosensitive assembly 10 includes a circuit board 11 and a photosensitive chip 12 electrically connected to the circuit board 11, wherein the optical lens 20 is maintained in a photosensitive path of the photosensitive chip 12, and light reflected by an object can enter the inside of the camera module through the optical lens 20 to be received by the photosensitive chip 12, and then the photosensitive chip 12 performs photoelectric conversion to form an image. Preferably, the photo chip 12 is mounted to the circuit board 11, and the photo chip 12 is conductively connected to the circuit board 11 by at least one set of leads 13.

Further, the photosensitive assembly 10 includes a lens holder 14, the lens holder 14 has a central through hole 141, wherein the lens holder 14 is disposed on the circuit board 14, and the central through hole 141 of the lens holder 14 corresponds to the photosensitive area of the photosensitive chip 12. The optical lens 20 is attached to the lens holder 14, and the central through hole 141 of the lens holder 14 forms a light path between the optical lens 20 and the photosensitive chip 12, that is, light reflected by an object can further pass through the central through hole 141 of the lens holder 14 to reach a photosensitive area of the photosensitive chip 12 after entering the inside of the image pickup module through the optical lens 20.

In the preferred example of the camera module shown in fig. 1, the lens holder 14 is integrally bonded to the circuit board 11 during molding, for example, by injection molding, so that the lens holder 14 can be allowed to be integrally bonded to the circuit board 11 during molding, which is advantageous in reducing the height dimension of the camera module and enhancing the strength of the circuit board 11 by the lens holder 14 to provide the circuit board 11 with high flatness. Preferably, the lens base 14 further covers the non-photosensitive area of the photosensitive chip 12, which is beneficial to reducing the length and width of the camera module and ensuring the flatness of the photosensitive chip 12. Alternatively, in other examples of the camera module, the lens holder 14 is a preform, which is attached to the circuit board 11.

Further, the photosensitive assembly 10 includes a filter 15, which may be, but is not limited to, an ir cut filter, wherein the filter 15 is attached to the lens holder 14 to cover the central through hole 141 of the lens holder 14, so that the lens holder 14 holds the filter 15 between the optical lens 20 and the photosensitive chip 12 for filtering ir light to improve the imaging quality of the camera module.

Referring to fig. 1, the focusing process of the camera module of the present invention is: the lens driver 27 drives the image side lens group 22 to move along the optical axis direction of the optical lens 20, so as to realize focusing of the image capturing module by adjusting the distance between the image side lens group 22 and the photosensitive chip 12.

The zooming process of the camera module comprises the following steps: the lens driver 25 presses an edge portion of the object side confining layer 2321 of the lens assembly 23 through the lens extension arm 26, the object side confining layer 2321 of the lens assembly 23 is bent and deformed to enable the edge portion of the object side confining layer 2321 to have displacement close to the image side confining layer 2322, so that the deformable transparent body 231 is allowed to be pressed to adjust a curvature radius of the deformable transparent body 231, and zooming of the camera module is achieved.

It will be appreciated that, on the basis of the manner in which the optical lens 20 of the present invention allows the radius of curvature of the deformable transparent body 231 of the lens assembly 23 to be adjusted to achieve zooming of the image capturing module, the optical lens 20 may reserve a smaller space for the image side lens group 22 to move, which is advantageous for reducing the height of the optical lens 20 and substantially reducing the height dimension of the image capturing module as a whole, so that the image capturing module is particularly suitable for use in light and thin electronic devices, and on the other hand, ensures that the lens end surface of the optical lens 20 has a smaller dimension to allow the image capturing module to be implemented as a front-mounted image capturing module or other movable space of the electronic device.

Fig. 2 shows the image pickup module according to the second preferred embodiment of the present invention, unlike the image pickup module shown in fig. 1, the lens assembly 23 is disposed at the image side end of the object side barrel 211 of the object side lens group 21 to allow the lens assembly 23 to be held between the object side lens group 21 and the image side lens group 22. Specifically, the fixing ring 24 is disposed at the image side end of the object side barrel 211 of the object side lens group 21, the object side limiting layer 2321 of the lens assembly 23 is attached to the fixing ring 24 to allow the lens assembly 23 to be supported by the fixing ring 24, and the center passage 241 of the fixing ring 24 corresponds to the center of the object side lens group 21 and the center of the lens assembly 23, respectively, such that the lens assembly 23 is disposed at the image side end of the object side barrel 211 of the object side lens group 21.

The lens driver 25 is disposed at a position outside the image side barrel 221 of the image side lens group 22 and close to an image side end, wherein a free end of the traction portion 262 of the lens extension arm 26 is connected to the lens driver 25, and a connection end of the traction portion 262 extends upward to a plane position where an outer side surface of the image side limiting layer 2322 of the lens assembly 23 is located, and the pressing ring 261 of the lens extension arm 26 extends from the connection end of the traction portion 262 toward the outer side surface of the image side limiting layer 2322 of the lens assembly 23 such that the pressing ring 261 and the image side limiting layer 2322 have an overlapping portion in a height direction, so that the pressing ring 261 of the lens extension arm 26 can press the image side limiting layer 2322 of the lens assembly 23. Preferably, the outer side surface of the image side confining layer 2322 of the lens assembly 23 is configured to be attached to the surface of the pressing ring 261 of the lens extension arm 26. More preferably, the outer side of the image side confining layer 2322 of the lens assembly 23 and the surface of the pressing ring 261 of the lens extension arm 26 are glued.

Unlike the camera module shown in fig. 1, in this specific example of the camera module of the present invention shown in fig. 2, when the lens driver 25 drives the lens extension arm 26 upward, the pressing ring 261 of the lens extension arm 26 presses the image side limiting layer 2322 to bend and deform the image side limiting layer 2322 to allow the edge of the image side limiting layer 2322 to have a displacement close to the object side limiting layer 2321, so that the object side limiting layer 2321 and the image side limiting layer 2322 press the deformable light transmitting body 231 on opposite sides of the deformable light transmitting body 231 to adjust the radius of curvature of the deformable light transmitting body 231. In addition, unlike the image pickup module shown in fig. 1, in this specific example of the image pickup module of the present invention shown in fig. 2, the lens driver 25 and the lens driver 27 are arranged in an inside-outside structure.

Fig. 3 shows the image pickup module according to the third preferred embodiment of the present invention, unlike the image pickup module shown in fig. 1, the optical lens 20 further includes a lens assembly 23 between the image side lens group 22 and the photosensitive member 10, and for convenience of explanation and understanding, the lens assembly 23 is defined as an outer lens assembly 23a, i.e., the outer lens assembly 23a can be disposed between the image side lens group 22 and the photosensitive member 10.

It should be noted that the structure of the outer lens assembly 23a is identical to that of the lens assembly 23 shown in fig. 1, and the difference between the two is only that the positions are different and that the specific parameters are possibly different according to the positions. In other words, the outer lens assembly 23a includes the deformable light transmissive body 231 and two deformation restricting layers 232, the two deformation restricting layers 232 being held on opposite sides of the deformable light transmissive body 231.

Referring to fig. 3, the optical lens 20 further includes an outer fixing ring 24a, the outer fixing ring 24a defining an outer central channel 241a, wherein the outer fixing ring 24a is disposed at an image side end of the image side barrel 221 of the image side lens group 22, the object side limiting layer 2321 of the outer lens assembly 23a is attached to the outer fixing ring 24a to allow the outer lens assembly 23a to be supported by the outer fixing ring 24a, and the outer central through holes 241a of the outer fixing ring 24a correspond to a center of the image side lens group 22 and a center of the outer lens assembly 23a, respectively, such that the outer lens group 23a can be disposed at an image side end of the image side barrel 221 of the image side lens group 22.

The optical lens 20 further provides an outer lens actuator 25a, wherein an edge portion of the image-side limiting layer 2322 of the outer lens assembly 23a is drivably connected to the outer lens actuator 25a, wherein when the outer lens actuator 25a is in an operating state to press the edge portion of the image-side limiting layer 2322 of the outer lens assembly 23a, the edge portion of the image-side limiting layer 2322 has a displacement toward the edge portion of the object-side limiting layer 2321 to bend and deform the image-side limiting layer 2322, so that the object-side limiting layer 2321 and the image-side limiting layer 2322 respectively press the deformable transparent body 231 on opposite sides of the deformable transparent body 231 to adjust a curvature radius of the deformable transparent body 231 to change a light path passing through the optical lens 20, thereby realizing zooming of the camera module.

The optical lens 20 further provides an outer lens extension arm 26a, the pressing ring 261 of the outer lens extension arm 6a is configured to press against an edge portion of the image side restricting layer 2322 of the outer lens assembly 23a, the traction portion 262 of the outer lens extension arm 26a is configured to extend from the outer lens assembly 23a toward an object side end of the image side lens group 22, and the traction portion 26 is configured to be connected to the outer lens driver 25a, so that a height position of the outer lens driver 25a can be increased.

Specifically, referring to fig. 3, the outer lens driver 25a is disposed at a position outside and near an image side end of the image side barrel 221 of the image side lens group 22, wherein a free end of the traction portion 262 of the outer lens extension arm 26a is connected to the outer lens driver 25a, and a connection end of the traction portion 262 extends downward to a plane position where an outer side surface of the image side limiting layer 2322 of the lens assembly 23a is located, and the pressing ring 261 of the outer lens extension arm 26a extends from the connection end of the traction portion 262 toward an outer side surface direction of the image side limiting layer 2322 of the outer lens assembly 23a such that the pressing ring 261 and the image side limiting layer 2322 have overlapping portions in a height direction, so that the pressing ring 261 of the outer lens extension arm 26a can press the image side limiting layer 2322 of the outer lens assembly 23 a. Preferably, the outer side surface of the image side limiting layer 2322 of the outer lens assembly 23a is configured to be attached to the surface of the pressing ring 261 of the outer lens extension arm 26 a. More preferably, the outer side of the image side confining layer 2322 of the outer lens assembly 23a and the surface of the pressing ring 261 of the outer lens extension arm 26a are glued.

Fig. 4 shows the image capturing module according to the fourth preferred embodiment of the present invention, unlike the image capturing module shown in fig. 1, the optical lens 20 further includes a synchronization unit 29, the synchronization unit 29 including a frame 291 and a connection arm 292, both ends of the connection arm 292 respectively extending to be connected to the object side barrel 211 and the frame 291 of the object side lens group 21, the image side barrel 221 of the image side lens group 22 being mounted to the frame 291, such that the synchronization unit 29 is used to synchronize the moving states of the object side lens group 21 and the image side lens group 22. The frame 291 of the synchronization unit 29 is drivably connected to the lens driver 27, wherein the lens driver 27 is capable of driving the object side lens group 21 and the image side lens group 22 to move in the optical axis direction of the optical lens 20 in a synchronized and same-amplitude manner when the lens driver 27 is in an operating state.

Further, the synchronizing unit 29 includes a guide shaft 293, the guide shaft 293 extends upward from the frame 291, and the extending direction of the guide shaft 293 coincides with the optical axis direction of the optical lens 20, the traction portion 262 of the lens extension arm 26 can be restricted by the guide shaft 293 to restrict the traction portion 292 from moving only in the optical axis direction of the optical lens 20 when the lens driver 25 drives the traction portion 262, so that a tilting phenomenon is avoided when the lens extension arm 26 presses the edge portion of the deformation restricting layer 232 of the lens assembly 23. For example, the traction portion 262 may have a perforation, and the guide shaft 293 may be able to penetrate the perforation of the traction portion 262, thus allowing the traction portion 262 to be restrained by the guide shaft 293.

In addition, the optical lens 20 further includes an anti-shake motor 201, and the frame 291 of the synchronization unit 29 is drivably connected to the anti-shake motor 201, wherein the anti-shake motor 201 is configured to move in a horizontal direction (a direction X, Y perpendicular to an optical axis direction of the optical lens 20 is defined as a horizontal direction in the present invention) by driving the frame 291 to realize anti-shake of the optical lens 20.

It will be appreciated by persons skilled in the art that the above embodiments are examples only, wherein the features of the different embodiments may be combined with each other to obtain an embodiment which is readily apparent from the disclosure of the invention but which is not explicitly indicated in the drawings.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.

Claims

1. An optical lens, comprising:

an object side lens group;

an image side lens group; and

A lens assembly, wherein the lens assembly is held between the object side lens group and the image side lens group, wherein the lens assembly further comprises a deformable light transmitting body and two light transmitting deformation restricting layers, the two deformation restricting layers being disposed on opposite sides of the deformable light transmitting body, wherein when edge portions of the two deformation restricting layers are forced to bend and deform at least one of the two deformation restricting layers to allow the edge portions of the two deformation restricting layers to have displacement close to each other, the deformable light transmitting body is deformed by being pressed by the two deformation restricting layers, thus changing the curvature radius of the deformable light transmitting body;

a lens driver to which the image side lens group is drivably connected to allow the lens driver to drive the image side lens group to move in an optical axis direction of the optical lens;

a lens driver to which one of the two deformation limiting layers of the lens assembly is drivably connected to allow the lens driver to press an edge portion of the deformation limiting layer to force the edge portions of the two deformation limiting layers;

The lens extension arm comprises a traction part and a pressing ring, the free end of the traction part is drivably connected with the lens driver, the connecting end of the traction part extends upwards to the plane where the outer side face of the object side limiting layer of the lens assembly is located, and the pressing ring extends from the connecting end of the traction part to the outer side face direction of the object side limiting layer so that the pressing ring and the object side limiting layer have an overlapped part in the height direction.

2. The optical lens according to claim 1, wherein both of the deformation restricting layers are light-transmitting film layers, so that both of the deformation restricting layers can be bent and deformed.

3. The optical lens of claim 1, wherein one of the two deformation limiting layers is a light transmissive film and the other deformation limiting layer is a light transmissive panel such that the light transmissive panel remains flat when the light transmissive film is deformed by bending.

4. The optical lens of claim 1, wherein the deformation limiting layer has a radius greater than the deformable light transmissive body to reserve a space between the two deformation limiting layers for accommodating the deformable light transmissive body after deformation.

5. The optical lens of claim 1, wherein the deformable light transmissive body is a solid or a gel.

6. The optical lens of claim 1, further comprising a fixing ring disposed at an object side end of an image side barrel of the image side lens group, wherein two of the deformation restricting layers are defined as an object side restricting layer and an image side restricting layer, respectively, the image side restricting layer being disposed at the fixing ring, the object side restricting layer being drivably connected to the lens driver.

7. The optical lens of claim 6, wherein an outer side surface of the object-side confining layer is attached to the compression ring.

8. The optical lens according to claim 1, further comprising an outer lens assembly, the image side lens group being held between the lens assembly and the outer lens assembly, wherein the outer lens assembly includes a deformable light transmitting body and two light transmitting deformation restricting layers provided on opposite sides of the deformable light transmitting body, wherein when edge portions of the two deformation restricting layers are forced to bend and deform at least one of the two deformation restricting layers to allow the edge portions of the two deformation restricting layers to have displacement close to each other, the deformable light transmitting body is deformed by being pressed by the two deformation restricting layers, thus changing a radius of curvature of the deformable light transmitting body.

9. The optical lens of claim 8, further comprising an outer lens actuator, one of the two deformation limiting layers of the outer lens assembly being drivably connected to the outer lens actuator to allow the outer lens actuator to press against the edge portions of the deformation limiting layers to force the edge portions of the two deformation limiting layers.

10. The optical lens of claim 9, further comprising a fixing ring provided at an object side end of an image side barrel of the image side lens group and an outer fixing ring provided at an image side end of the image side barrel, wherein the two deformation restricting layers of the lens assembly and the two deformation restricting layers of the outer lens assembly are defined as an object side restricting layer and an image side restricting layer, respectively; wherein the image side confining layer of the lens assembly is disposed at the stationary ring, the object side confining layer being drivably connected to the lens driver; wherein the object-side confining layer of the outer lens assembly is disposed at the outer fixing ring and the image-side confining layer is drivably connected to the outer lens driver.

11. The optical lens of claim 10, further comprising an outer lens extension arm, the lens extension arm and the outer lens extension arm each comprising a traction portion and a compression ring; wherein the free end of the traction part of the lens extension arm is drivably connected to the lens driver, the connection end of the traction part extends upwards to a plane where the outer side surface of the object side limiting layer of the lens assembly is located, and the pressing ring extends from the connection end of the traction part towards the outer side surface of the object side limiting layer so that the pressing ring and the object side limiting layer have an overlapping part in the height direction; the free end of the traction part of the outer lens extension arm is drivably connected to the outer lens driver, the connecting end of the traction part extends downwards to the plane of the outer side surface of the image side limiting layer of the outer lens assembly, and the pressing ring extends from the connecting end of the traction part to the outer side surface direction of the image side limiting layer so that the pressing ring and the image side limiting layer have an overlapped part in the height direction.

12. The optical lens of claim 1, the object-side lens group and the image-side lens group being drivably connected to the lens driver, respectively, to allow the lens driver to drive the object-side lens group and the image-side lens group to move in an optical axis direction of the optical lens.

13. The optical lens of claim 1, further comprising a housing having an interior space and a perforation in communication with the interior space, wherein the lens assembly, the lens extension arm, the lens driver, the image side lens group, and the lens driver are respectively housed in the interior space of the housing, wherein the object side lens group is attached to the housing to close the perforation of the housing.

14. The optical lens of claim 11, further comprising a housing having an interior space and a perforation in communication with the interior space, wherein the lens assembly, the lens extension arm, the lens driver, the image side lens group, the lens driver, the outer lens assembly, the outer lens extension arm, and the outer lens driver are respectively housed in the interior space of the housing, wherein the object side lens group is mounted to the housing to close the perforation of the housing.

15. An optical lens, comprising:

an object side lens group;

an image side lens group; and

the lens extension arm comprises a traction part and a pressing ring, the free end of the traction part is drivably connected with the lens driver, the connecting end of the traction part extends upwards to the plane where the outer side face of the image side limiting layer of the lens assembly is located, and the pressing ring extends from the connecting end of the traction part to the outer side face direction of the image side limiting layer so that the pressing ring and the image side limiting layer have an overlapped part in the height direction.

16. The optical lens of claim 15, further comprising a fixing ring disposed at an image side end of an object side barrel of the object side lens group, wherein two of the deformation restricting layers are defined as an object side restricting layer and an image side restricting layer, respectively, the object side restricting layer being disposed at the fixing ring, the image side restricting layer being drivably connected to the lens driver.

17. The optical lens of claim 16, wherein an outer side surface of the image-side confining layer is attached to the compression ring.

18. The optical lens system according to claim 15, further comprising an outer lens assembly, the image side lens group being held between the lens assembly and the outer lens assembly, wherein the outer lens assembly includes a deformable light transmitting body and two light transmitting deformation restricting layers provided on opposite sides of the deformable light transmitting body, wherein when edge portions of the two deformation restricting layers are forced to bend and deform at least one of the two deformation restricting layers to allow the edge portions of the two deformation restricting layers to have displacement close to each other, the deformable light transmitting body is deformed by being pressed by the two deformation restricting layers, thus changing a radius of curvature of the deformable light transmitting body.

19. The optical lens of claim 18, further comprising an outer lens actuator, one of the two deformation limiting layers of the outer lens assembly being drivably connected to the outer lens actuator to allow the outer lens actuator to press against the edge portions of the deformation limiting layers to force the edge portions of the two deformation limiting layers.

20. The optical lens of claim 19, further comprising a fixing ring disposed at an image side end of an object side barrel of the object side lens group and an outer fixing ring disposed at an image side end of an image side barrel of the image side lens group, wherein the two deformation restricting layers of the lens assembly and the two deformation restricting layers of the outer lens assembly are respectively defined as an object side restricting layer and an image side restricting layer; wherein the object side confining layer of the lens assembly is disposed at the stationary ring, the image side confining layer being drivably connected to the lens driver; wherein the object-side confining layer of the outer lens assembly is disposed at the outer fixing ring and the image-side confining layer is drivably connected to the outer lens driver.

21. The optical lens of claim 19, further comprising a lens extension arm and an outer lens extension arm, the lens extension arm and the outer lens extension arm each comprising a traction portion and a compression ring; wherein the free end of the traction part of the lens extension arm is drivably connected to the lens driver, the connection end of the traction part extends upwards to a plane where the outer side surface of the image side limiting layer of the lens assembly is located, and the pressing ring extends from the connection end of the traction part towards the outer side surface direction of the image side limiting layer so that the pressing ring and the image side limiting layer have an overlapped part in the height direction; the free end of the traction part of the outer lens extension arm is drivably connected to the outer lens driver, the connecting end of the traction part extends downwards to the plane of the outer side surface of the image side limiting layer of the outer lens assembly, and the pressing ring extends from the connecting end of the traction part to the outer side surface direction of the image side limiting layer so that the pressing ring and the image side limiting layer have an overlapped part in the height direction.

22. The optical lens of claim 21, further comprising a housing having an interior space and a perforation in communication with the interior space, wherein the lens assembly, the lens extension arm, the lens driver, the image side lens group, the lens driver, the outer lens assembly, the outer lens extension arm, and the outer lens driver are respectively housed in the interior space of the housing, wherein the object side lens group is mounted to the housing to close the perforation of the housing.

23. The module of making a video recording, its characterized in that includes:

a photosensitive assembly; and

the optical lens of any of claims 1-22, wherein the optical lens is disposed in a photosensitive path of the photosensitive assembly.