CN113820818A

CN113820818A - Lens module, camera and electronic equipment

Info

Publication number: CN113820818A
Application number: CN202111122746.6A
Authority: CN
Inventors: 朱林波; 陈宇灏
Original assignee: Vivo Mobile Communication Hangzhou Co Ltd
Current assignee: Vivo Mobile Communication Hangzhou Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2021-12-21
Anticipated expiration: 2041-09-24
Also published as: WO2023045947A1; CN113820818B

Abstract

The present application discloses a lens module, a camera and an electronic device. The lens module includes 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, and the The light inlet is communicated 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 in the lens barrel and is provided with a one side of the light inlet; the lens group has a convex part, and the convex part is protruded and arranged in the variable aperture; the driving device is connected with the variable aperture, and the driving device It is used to adjust the aperture size of the aperture aperture of the variable aperture. The above solution can reduce the height size of the camera with variable aperture.

Description

Lens module, camera and electronic equipment

Technical Field

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

Background

With the progress of science and technology, the performance of electronic equipment such as smart phones and tablet computers is continuously improved, and users also have higher requirements on the photographing performance of the electronic equipment. In order to improve the photographing performance of the camera in the electronic device, the photographing function can be realized by installing an iris diaphragm in the camera.

Since the iris diaphragm is an independent member and has a certain size, when the iris diaphragm is mounted on the lens, the height of the whole camera is increased, the convex hull problem of the electronic device is increased, and the appearance performance of the electronic device is weakened.

Disclosure of Invention

An object of the embodiment of the application is to provide a lens module, a camera and an electronic device, so as to reduce the height size of the camera with an iris diaphragm.

In order to solve the technical problem, the present application is implemented as follows:

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

the lens barrel is provided with a light inlet and an accommodating cavity, the light inlet is communicated with the accommodating cavity, and the lens group is arranged in the accommodating cavity;

the variable diaphragm is arranged on the lens barrel and is positioned on one side of the lens barrel, which is provided with the light inlet; the lens group is provided with a convex part which is convexly arranged in the variable aperture;

the driving device is connected with the iris diaphragm and is used for adjusting the aperture size of the diaphragm hole of the iris diaphragm.

In a second aspect, an embodiment of the present application provides a camera, which includes a photosensitive element and a lens module according to the first aspect of the embodiment of the present application, where the photosensitive element is configured to receive light passing through the lens module to form an image.

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 application, the iris diaphragm is installed in one side that the lens cone set up the light inlet, and the bellying protrusion of lens group sets up in the iris diaphragm, also in the convex part of lens group orientation light inlet extended to the iris diaphragm hole of iris diaphragm, so set up down, in the direction of height of camera lens module, the iris diaphragm hole of iris diaphragm just provides the accommodation space for the lens group, can effectively promote the compact structure nature of camera lens module like this undoubtedly, and then the height dimension of attenuate the camera, and improve electronic equipment's convex closure problem.

Drawings

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

fig. 2 is an exploded schematic view of a lens module according to an embodiment of the present disclosure;

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

FIG. 4 is a partial enlarged view taken at A in FIG. 3;

FIG. 5 is a schematic structural diagram of an iris diaphragm in a first state according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an iris diaphragm in a second state according to an embodiment of the present disclosure;

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

FIG. 8 is a schematic structural diagram of a stop ring according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a joint and a magnet disclosed in the embodiment of the present application.

Description of reference numerals:

100-lens cone, 110-diaphragm carrier, 111-first step groove, 112-guide groove, 113-second step groove, 114-positioning projection, 120-cylinder main body,

200-lens set, 210-first lens subset, 211-convex part, 220-second lens subset,

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

400-drive, 410-drive assembly, 411-magnet, 412-drive coil, 420-link, 421-mounting slot,

500-stop ring, 510-avoidance space,

600-protective cover,

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

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The technical solutions disclosed in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

In order to solve the technical problem that the height of a camera can be increased by an iris diaphragm in the related art, the embodiment of the application provides a lens module. As shown in fig. 1 to 9, a lens module disclosed in the present embodiment includes a lens barrel 100, a lens group 200, an iris diaphragm 300 and a driving device 400.

The lens barrel 100 is a basic component of the lens module, and provides a mounting base for the lens group 200, the iris diaphragm 300 and the driving device 400, and plays a certain role in protection.

As shown in fig. 2 to 4 and fig. 7, the lens barrel 100 has a light inlet and a receiving cavity, the light inlet is communicated with the receiving cavity, and the lens group 200 is disposed in the receiving cavity. The accommodating cavity provides an installation space for the lens group 200, and the accommodating cavity is communicated with the outside through the light inlet, so that light can enter the accommodating cavity through the light inlet, and light distribution is performed by the lens group 200, so that functions of eliminating chromatic aberration, aberration and the like are realized, and the camera can acquire a high-quality image.

The variable diaphragm 300 is mounted on the lens barrel 100, and the variable diaphragm 300 is located on the side of the lens barrel 100 where the light entrance is provided. It should be understood that the iris diaphragm 300 can adjust the light-passing area by changing the aperture of the iris diaphragm aperture, so as to control the light flux transmitted from the light inlet to the lens assembly 200, and therefore, the iris diaphragm 300 can be adapted by adjusting and controlling under different light environments and different shooting requirements. With this arrangement, the iris diaphragm 300 can be adjusted before the light is projected onto the lens assembly 200, so as to adaptively adjust the light flux entering from the light inlet.

In the related art, the iris diaphragm and the lens module are two independent structures, and the two structures are stacked inside the camera, so that the overall size of the camera is large, and the convex hull problem is particularly shown on the electronic device.

In the present embodiment, the lens set 200 has a protrusion 211, and the protrusion 211 is disposed in the iris diaphragm 300 in a protruding manner. It should be understood that the lens set 200 includes a convex lens on a side close to the light inlet, and the convex portion 211 refers to a convex side of the convex lens. With such a configuration, the protrusion 211 can extend into the aperture hole of the iris diaphragm 300 toward the light entrance side, and the aperture hole can avoid the protrusion 211 and provide a receiving space for the protrusion 211, which is equivalent to that, in the height direction of the lens module, some parts of the lens assembly 200 are embedded in the iris diaphragm 300.

It should be noted that, in the embodiment of the present application, the iris diaphragm 300 is set as a part of the lens module, and the lens group 200 and the iris diaphragm 300 have an embedded relationship of partial structures inside the lens module, so that the iris diaphragm 300 and the lens group 200 share the same carrier of the lens barrel 100, which undoubtedly can improve the overall structural compactness of the lens module. Compared with the scheme that the iris diaphragm and the lens module are respectively and independently arranged in the related art, the height size of the lens module is reduced, the height size of the camera can be further reduced, and the convex hull problem of the electronic equipment is improved.

Meanwhile, a driving device 400 is connected to the iris diaphragm 300, and the driving device 400 is used to adjust the size of the diaphragm hole diameter of the iris diaphragm 300. When the iris diaphragm 300 needs to be adjusted, convenient adjustment and control can be realized through the driving device 400, so that the operation convenience can be improved.

In order to further play a role in protection, the lens module may further include a protection cover 600, and the protection cover 600 is disposed on a side of the lens module near the light inlet. Of course, the protective cover 600 needs to be provided with a light hole for light to pass through.

It can be known from the above description that, in the embodiment of the present application, the iris diaphragm is installed on one side of the lens barrel where the light inlet is formed, and the protrusion of the lens group is disposed in the iris diaphragm, that is, the portion of the lens group protruding toward the light inlet extends into the aperture hole of the iris diaphragm, so that the aperture hole of the iris diaphragm provides an accommodating space for the lens group in the height direction of the lens module, thereby undoubtedly effectively improving the structural compactness of the lens module, further reducing the height dimension of the camera, and improving the convex hull problem of the electronic device.

In the embodiment of the present application, the specific implementation manner that the protrusion 211 is protruded from the iris diaphragm 300 is, for example, by thinning the side of the lens barrel 100 where the light inlet is disposed, so that when the iris diaphragm 300 is mounted on the lens barrel 100, the height position of the iris diaphragm 300 is lowered to be sleeved around the protrusion 211, that is, the protrusion 211 is located in the diaphragm hole of the iris diaphragm 300, and at this time, the height dimension of the whole lens module is necessarily reduced.

In another embodiment, as shown in fig. 2 to 4, the lens barrel 100 according to the embodiment of the present application may be provided with a first stepped groove 111 on the light entrance side, the first stepped groove 111 being disposed around the light entrance, and the variable aperture stop 300 being disposed in the first stepped groove 111. It should be understood that, since the first step groove 111 is disposed around the light inlet, such that the first step groove 111 is disposed in a step-like manner with the opening of the light inlet, when the iris diaphragm 300 is disposed in the first step groove 111, it is ensured that the iris diaphragm 300 is also disposed around the light inlet, so as to control the luminous flux projected from the light inlet to the lens group 200 by the iris diaphragm 300.

Meanwhile, because iris diaphragm 300 sets up in first step groove 111, first step groove 111 provides accommodation space for iris diaphragm 300, iris diaphragm 300 is equivalent to and inlays and establishes in lens-barrel 100, just so make iris diaphragm 300 and the size space that only need occupy the lens module after the combination of lens module, compare in the scheme of iris diaphragm and the mutual independent superpose of lens module among the correlation technique, the compact structure of the lens module of this application embodiment has obtained the optimization, after installing it to the camera in, can attenuate the height and size of camera undoubtedly, and reach the effect of improving the electronic equipment convex hull problem.

In order to further optimize the compactness of the lens module, as shown in fig. 3, the protrusion 211 of the embodiment of the present application may protrude from the top surface of the iris diaphragm 300. It should be understood that the top surface of the iris diaphragm 300 refers to the end surface of the side thereof facing away from the lens barrel. With this arrangement, the protrusion 211 is configured to extend into the aperture hole of the iris diaphragm 300 to a greater extent until the end of the protrusion 211 protrudes beyond the top surface of the iris diaphragm 300, and the height of the lens module is reduced to a minimum.

Meanwhile, the area around the protrusion 211 protruding out of the top surface of the iris diaphragm 300 can also provide an accommodation space for other components, for example, the protection cover 600 and a stop ring 500 described later can be disposed around the protruding protrusion 211, thereby avoiding increasing the height of the lens module.

In the present embodiment, the iris diaphragm 300 may be of various types, for example, the iris diaphragm 300 is a deformable structural member which can be deformed to change the size of the aperture of the iris hole in the middle thereof. In another embodiment, as shown in fig. 2 to 7, the iris diaphragm 300 of the present embodiment may include a first blade 310 and a second blade 320, wherein the first blade 310 and/or the second blade 320 may be movably disposed in the first stepped groove 111 and stacked in the optical axis direction of the lens module; the first blade 310 has a first through hole 311, the second blade 320 has a second through hole 321, and the driving device 400 is used for driving the first blade 310 and the second blade 320 to generate a relative motion so as to change the aperture of the aperture.

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

When the first blade 310 and the second blade 320 are driven by the driving device 400 to move relatively, the relative positions of the first through hole 311 and the second through hole 321 are changed, so that the overlapping area of the first through hole 311 and the second through hole 321 can be adjusted, and the aperture size of the iris diaphragm 300 can be changed.

It should be noted that the iris diaphragm 300 of the embodiment of the present application is not provided with a housing, and the lens assembly 200, the driving device 400 and the lens barrel 100 are all used as a carrier, so that the occupied space of the iris diaphragm 300 can be reduced undoubtedly, the structural compactness of the lens module is further improved, and the effect of further reducing the height dimension of the camera is achieved.

Further, as shown in fig. 2, 5 and 6, the first through hole 311 of the embodiment of the present application may include a first transparent portion 311a and a second transparent portion 311b communicating with each other, and an area of the first transparent portion 311a is smaller than an area of the second transparent portion 311 b; the second through hole 321 includes a third light transmission portion 321a and a fourth light transmission portion 321b communicating with each other, and an area of the third light transmission portion 321a is smaller than an area of the fourth light transmission portion 321 b; the variable diaphragm 300 has a first state in which the first light-transmitting portion 311a and the third light-transmitting portion 321a overlap to form a small-diaphragm light-transmitting region H1, and a second state in which the variable diaphragm 300 is in the first state; when the variable diaphragm 300 is in the second state, the second light-transmitting portion 311b and the fourth light-transmitting portion 321b overlap to form the large diaphragm light-transmitting region H2.

In this configuration, due to the size relationship of the dimensions, the small-aperture light-transmitting region H1 is more easily formed when the first light-transmitting portion 311a and the second light-transmitting portion 311b overlap each other, and the large-aperture light-transmitting region H2 is more easily formed when the second light-transmitting portion 311b and the fourth light-transmitting portion 321b overlap each other. By the driving action of the driving device 400, the first blade 310 and the second blade 320 can be driven to generate relative motion, thereby switching the iris diaphragm 300 between the first state and the second state. When a smaller amount of light transmission is required, the variable diaphragm 300 can be switched to the first state, and light transmission can be performed with the small diaphragm light transmission region H1; when a large amount of light transmission is required, the variable diaphragm 300 can be switched to the second state, and light transmission can be performed by the large diaphragm light transmission region H2.

In the embodiment of the present application, specific shapes of the first through hole 311 and the second through hole 321 are not limited, for example, the first through hole 311a, the second through hole 311b, the third through hole 321a, and the fourth through hole 321b may be square holes, so that the small-aperture light-transmitting region H1 and the large-aperture light-transmitting region H2 are square light-transmitting regions. In another embodiment, as shown in fig. 2, 5 and 6, the hole edge of the first through hole 311 and the hole edge of the second through hole 321 of the example of the present application may each have a circular arc shape, so that the small-stop light-transmitting region H1 and the large-stop light-transmitting region H2 are each a circular light-transmitting region.

It should be understood that, with this arrangement, the hole edges of the first light transmission portion 311a, the second light transmission portion 311b, the third light transmission portion 321a, and the fourth light transmission portion 321b are all arc-shaped, and when the variable aperture stop 300 is switched to the first state, most of the hole edges of the first light transmission portion 311a and the third light transmission portion 321a are overlapped together to form a circular light transmission region, and the aperture of the circular light transmission region is smaller, so that the aperture is the small aperture light transmission region H1, as shown in fig. 5 in particular; when the variable diaphragm 300 is switched to the second state, most of the hole edges of the second light-transmitting portion 311b and the fourth light-transmitting portion 321b overlap to form a circular light-transmitting region, which has a larger diaphragm hole diameter and thus is a large diaphragm light-transmitting region H2, as shown in fig. 6.

In an alternative scheme, as shown in fig. 2 and fig. 5 to 7, the iris diaphragm 300 of the embodiment of the present application may further include a third blade 330 and a fourth blade 340, the third blade 330 and the fourth blade 340 are positioned and installed in the first stepped groove 111, and the first blade 310 and the second blade 320 are disposed between the third blade 330 and the fourth blade 340; the third blade 330 has a third through hole 331, the fourth blade 340 has a fourth through hole 341, the third through hole 331 and the fourth through hole 341 have the same shape, and the central axes of the third through hole 331 and the fourth through hole 341 are located on the optical axis of the lens module, and the third through hole 331 and the fourth through hole 341 are used for light rays in the overlapping area of the first through hole 311 and the second through hole 321 to pass through.

It should be understood that the fourth blade 340 is the bottom blade of the variable aperture 300, which can support other blades; meanwhile, the fourth through hole 341 can block light outside the overlapping region of the first through hole 311 and the second through hole 321 by light in the overlapping region of the first through hole 311 and the second through hole 321, so as to avoid forming stray light in the accommodating cavity to affect the image quality. The third blade 330 is a top blade of the iris diaphragm 300, and the third through hole 331 can also block light outside the overlapping area of the first through hole 311 and the second through hole 321, so as to avoid stray light formed in the accommodating cavity from affecting the image quality; meanwhile, the third blade 330 can cover and shield the first blade 310 and the second blade 320, so as to avoid appearance defects caused by direct exposure of the first blade 310 and the second blade 320.

In the embodiment of the present application, specific positioning and mounting manners of the third blade 330 and the fourth blade 340 are not limited, for example, the lens barrel 100 is provided with a plurality of positioning protrusions 114 in the first step groove 111, the third blade 330 is provided with a third through hole 331, the fourth blade 340 is provided with a fourth through hole 341, the third through hole 331 can be in positioning fit with the positioning protrusions 114, and the fourth through hole 341 can be in positioning fit with the positioning protrusions 114, which can be specifically referred to fig. 2 and fig. 7; of course, the lens barrel 100 may be provided with a positioning recess in the first stepped groove 111, and the third blade 330 and the fourth blade 340 may be provided with a protruding structure engaged with the positioning recess, so as to achieve positioning fit.

In the embodiment of the present application, the relative movement of the first blade 310 and the second blade 320 may be varied, for example, at least one of the first blade 310 and the second blade 320 may be configured to move toward the other, so that the size of the aperture of the iris diaphragm 300 may be adjusted by the relative movement of the first blade 310 and the second blade 320.

In another embodiment, as shown in fig. 2 to 6, the first blade 310 and the second blade 320 of the embodiment of the present application may be both rotatably disposed in the first stepped groove 111; the driving device 400 includes a driving assembly 410 and a joint 420, the joint 420 is movably disposed on the lens barrel 100, and the driving assembly 410 is used for driving the joint 420 to move; the moving path of the link 420 is located in a direction of a perpendicular bisector of a first line between the rotation center of the first vane 310 and the rotation center of the second vane 320; the joint 420 is disposed through the first blade 310 and the second blade 320, and the joint 420 rotates the first blade 310 and the second blade 320 when moving.

Specifically, 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 where the lens barrel 100 is provided with the positioning protrusion 114 for positioning and matching the third blade 330 and the fourth blade 340, the first blade 310 and the second blade 320 can rotate with the positioning protrusion 114 as a fulcrum, that is, the positioning protrusion 114 is a rotation center. The joint 420 and the lens barrel 100 can move relatively, and the movement can be smoothly realized under the driving action of the driving component 410.

Meanwhile, since the joint 420 is disposed through the first blade 310 and the second blade 320, when the joint 420 moves, it will have an interference relationship with the first blade 310 and the second blade 320, and further will drive the first blade 310 and the second blade 320 to move. Based on the technical characteristic that the moving path of the joint 420 is located in the direction of the perpendicular bisector of the first connection, when the joint 420 moves, it can drive the first blade 310 and the second blade 320 to rotate toward or away from each other, so that the iris diaphragm 300 is switched between the first state and the second state.

Specifically, as shown in fig. 5 and 6, in the process of switching the iris diaphragm 300 from the first state to the second state, the connecting piece 420 moves from bottom to top as shown in the figure, and the first blade 310 and the second blade 320 rotate toward each other and then rotate away from each other until the first blade and the second blade rotate to form the large diaphragm light-transmitting area H2; in the process of switching the iris diaphragm 300 from the second state to the first state, the connecting member 420 moves from top to bottom as shown in the figure, and the first blade 310 and the second blade 320 rotate toward each other and then rotate away from each other until they rotate to form the small diaphragm light-transmitting region H1.

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

It should be understood that, based on the principle of magnetic effect of current, the driving coil 412 generates a first magnetic field around the driving coil 412 when being powered on, a second magnetic field exists around the magnet 411, and due to mutual repulsion between like magnetic poles and mutual attraction between unlike magnetic poles, the magnet 411 and the driving coil 412 are driven by each other under the interaction between the first magnetic field and the second magnetic field, so that the driving action is indirectly generated on the joint member 420, and the joint member 420 is further moved.

Of course, the specific arrangement relationship between the magnet 411 and the driving coil 412 and the lens barrel 100 and the joint 420 is not limited in the embodiment of the present application, as shown in fig. 9, the magnet 411 may be arranged on the joint 420, the joint 420 may be provided with an installation slot 421, the installation slot 421 is used for accommodating the magnet 411, so that the structural compactness may be improved, and the driving coil 412 is arranged on the lens barrel 100; alternatively, the magnet 411 is mounted on the lens barrel 100, and the driving coil 412 is disposed on the coupling member 420.

Further, as shown in fig. 2 to 8, a guide groove 112 communicating with the first step groove 111 may be formed in the lens barrel 100 according to the embodiment of the present application, and the engaging member 420 is movably disposed in the guide groove 112. The guide groove 112 can provide a moving space for the connecting member 420, so as to improve the internal compactness of the lens module. One end of the joint member 420 extends into the first stepped groove 111, so that the end of the joint member 420 is conveniently arranged to penetrate through the first blade 310 and the second blade 320 to drive the first blade 310 and the second blade 320 to rotate; in the embodiment where the iris diaphragm 300 includes the third blade 330 and the fourth blade 340, both of them need to be provided with an avoiding hole for the joint member 420 to pass through and move.

Meanwhile, the lens module according to the embodiment of the present application may further include a stop ring 500, the stop ring 500 is disposed in the first step groove 111, and a central axis of the stop ring 500 is located on an optical axis of the lens module; the position-stopping ring 500 is provided with an avoiding space 510, the linking piece 420 is arranged in the avoiding space 510 in a penetrating manner, the position-stopping ring 500 is in limit fit with the linking piece 420 at the first end of the avoiding space 510 so as to prevent the linking piece 420 from moving out of the opening end of the guide groove 112, and the first end is the end of the avoiding space 510 close to the opening end of the guide groove 112.

With this arrangement, the end of the link 420 may extend into the avoidance space 510 and may move in the avoidance space 510; when the joint member 420 moves to the first end of the avoiding space 510, the joint member 420 is in limit fit with the stop ring 500, so that the driving device 400 can be prevented from being out of work because the joint member 420 moves into the accommodating cavity of the lens barrel 100 from the opening end of the guide groove 112. It can be seen that the drive device 400 can ensure a smooth driving action due to the presence of the stop ring 500.

The specific position of the stop ring 500 is not limited in the embodiment of the present application, and it may be directly disposed on the groove surface of the first step groove 111, or, as shown in fig. 2, it is disposed on a side of the iris diaphragm 300 departing from the lens group 200, at this time, the stop ring 500 may also limit the iris diaphragm 300.

In an alternative scheme, as shown in fig. 1 to 3, the lens barrel 100 according to the embodiment of the present application may include an aperture carrier 110 and a barrel main body 120, wherein a light inlet and a first stepped groove 111 are disposed on one side of the aperture carrier 110, and a second stepped groove 113 is disposed on one side of the aperture carrier 110, which faces away from the light inlet; the lens set 200 includes a first lens subgroup 210 and a second lens subgroup 220, the first lens subgroup 210 is installed in the second step groove 113, and the second lens subgroup 220 is disposed in the barrel body 120; the diaphragm carrier 110 is connected to the cylinder main body 120 through a side thereof provided with the second stepped groove 113.

Specifically, the lens barrel 100 of the embodiment of the present application is a split structure, and the aperture carrier 110 and the barrel main body 120 are detachably connected, so that the convenience in dismounting and mounting the lens barrel 100 can be improved. In the embodiment of the present application, the lens set 200 is divided into two parts, namely, a first lens subgroup 210 and a second lens subgroup 220, and when the lens set is assembled, the second lens subgroup 220 can be directly assembled in the cylinder body 120, and the first lens subgroup 210 is assembled between the aperture carrier 110 and the cylinder body 120; each lens of the lens group 200 can be fixed by dispensing.

Under the structural layout, the iris diaphragm 300 and the first lens subgroup 210 share the same diaphragm carrier 110, so that the components can be used as an integral module, and the convenience of installation and use is further improved; meanwhile, the iris diaphragm 300 and the first lens subset 210 are embedded in the diaphragm carrier 110, so that the overall structure compactness of the lens module can be improved.

Based on the above-described 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 cylinder body 120. Specifically, when the iris diaphragm 300 is mounted on the diaphragm carrier 110, since the first lens subgroup 210 is also mounted on the diaphragm carrier 110, the light entering direction of the iris diaphragm 300 can be consistent with the optical axis direction of the first lens subgroup 210 by calibrating the configuration relationship during the mounting process; meanwhile, the optical axis direction of the subsequent accessible calibration lens module of operating personnel, also with the optical axis calibration to the collineation of first lens subgroup 210 and second lens subgroup 220, just so can make the light direction that advances of iris diaphragm 300 unanimous with the optical axis direction of lens module, can show the grading quality that promotes the lens module like this.

Of course, the embodiment of the present application does not limit the specific configuration of the lens barrel 100, and it may also be an integrated structure. The specific number of the first lens subgroup 210 and the second lens subgroup 220 is not limited in the embodiments of the present application, and as shown in fig. 3, the first lens subgroup 210 is 1 lens, which is favorable for compressing and fixing the aperture carrier 110.

As shown in fig. 1 to fig. 3, an embodiment of the present application further provides a camera, which includes a photosensitive element and a lens module according to any of the foregoing schemes, so that the camera has the beneficial effects of any of the foregoing schemes, and details are not repeated herein. The photosensitive element is an imaging component of the camera and is used for receiving light rays passing through the lens module to form images.

The embodiment of the application further provides an electronic device, which comprises a casing and the camera, wherein the camera is installed on the casing. In the embodiment of the present application, the electronic device may be a smart phone, a tablet computer, a wearable device, or the like, and the specific type of the electronic device is not limited in the embodiment of the present application.

Combine aforementioned, based on the lens module of this application embodiment, can attenuate the holistic height dimension of camera, and then reach the effect that improves electronic equipment's convex hull problem.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. a lens module, is characterized in that, comprises lens barrel, lens group, variable aperture and driving device, wherein:

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

The variable diaphragm is mounted on the lens barrel, and the variable diaphragm is located on the side of the lens barrel where the light inlet is arranged; the lens group has a convex part, and the convex part is convex is set in the variable aperture;

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

2 . 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, and the first stepped groove is arranged around the light inlet, 2 . The variable aperture is arranged in the first stepped groove, so that the protruding portion is protruded and arranged in the variable aperture.

3 . The lens module according to claim 1 , wherein the protruding portion protrudes from the top surface of the variable aperture. 4 .

4 . The lens module according to claim 2 , wherein the lens barrel comprises an aperture carrier and a barrel body, and one side of the aperture carrier is provided with the light inlet and the first stepped groove, 4 . A second stepped groove is provided on the side of the aperture carrier facing away from the light inlet;

The lens group includes a first lens sub-group and a second lens sub-group, the first lens sub-group is installed in the second stepped groove, and the first lens sub-group has the protruding part; The second lens subgroup is arranged in the barrel body; the aperture carrier is connected with the barrel body through the side where the second stepped groove is arranged.

5 . The lens module according to claim 2 , wherein the variable aperture comprises a first blade and a second blade, and the first blade and/or the second blade are movably arranged on the in the first stepped 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 produce relative movement to change the The size of the aperture aperture.

6 . The lens module according to claim 5 , wherein the first through hole comprises a first transparent portion and a second transparent portion that communicate with each other, and the area of the first transparent portion is smaller than the area of the first transparent portion. 7 . the area of the second transparent portion; the second through hole includes a third transparent portion and a fourth transparent portion that communicate with each other, and the area of the third transparent portion is smaller than the area of the fourth transparent portion ;

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 portion and the third light-transmitting portion overlap to form a small aperture a light-transmitting area; when the variable aperture is in the second state, the second light-transmitting portion and the fourth light-transmitting portion overlap to form a large aperture light-transmitting area.

7 . The lens module according to claim 6 , wherein the hole edge of the first through hole and the hole edge of the second through hole are arc-shaped, so that the small aperture can transmit light. 8 . Both the light-transmitting area and the large-aperture light-transmitting area are circular light-transmitting areas.

8 . 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 mounted on the first blade. 9 . In the stepped groove, the first blade and the second blade are arranged 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 A fourth through hole, the third through hole and the fourth through hole have the same shape, and their central axes are located on the optical axis of the lens module, the third through hole and the fourth through hole are The through hole is used for passing the light in the overlapping area of the first through hole and the second through hole.

9 . 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 comprises a driving component and a an engaging piece, the engaging piece is movably arranged on the lens barrel, and the driving component is used to drive the engaging piece to move; the moving path of the engaging piece is located in the direction of the perpendicular line of the first connecting line , the first connecting line is the connecting line between the rotation center of the first blade and the rotation center of the second blade;

The engaging piece is penetrated through the first blade and the second blade, and the engaging piece drives the first blade and the second blade to rotate when moving.

10 . The lens module according to claim 9 , wherein the driving assembly comprises a magnet and a driving coil, and one of the magnet and the driving coil is disposed on the lens barrel, and the other is disposed on the lens barrel. 11 . One is disposed on the adapter.

11 . The lens module according to claim 9 , wherein a guide groove communicated with the first stepped groove is formed in the lens barrel, and the connecting piece is movably disposed in the guide groove. 12 . , and one end of the connecting piece extends into the first stepped groove; the lens module further includes a stop ring, the stop ring is arranged in the first stepped groove, and the stop ring The central axis of the lens module is located on the optical axis of the lens module;

The stop ring is provided with an escape space, and the connecting piece is penetrated in the escape space. The engaging piece moves out from the open end of the guide groove, and the first end is an end of the escape space close to the open end of the guide groove.

12. A camera, characterized in that it comprises a photosensitive element and the lens module according to any one of claims 1 to 11, wherein the photosensitive element is used to receive light passing through the lens module for imaging .

13. An electronic device, comprising a casing and the camera of claim 12, wherein the camera is mounted on the casing.