Lens modules, cameras and electronic equipment

Abstract

The present application discloses a lens module, a camera and an electronic device, wherein the lens module comprises a lens barrel, a lens group, a variable aperture and a driving device, wherein: the lens barrel has a light inlet and a receiving cavity, the light inlet is communicated with the receiving cavity, and the lens group is arranged in the receiving cavity; the variable aperture is mounted on the lens barrel, and the variable aperture is located on the side of the lens barrel where the light inlet is arranged; the lens group has a protruding portion, and the protruding portion is protrudingly arranged in the variable aperture; the driving device is connected to the variable aperture, and the driving device is used to adjust the aperture size of the aperture of the variable aperture. The above scheme can reduce the height size of the camera with a variable aperture.

Description

Technical Field

[0001] The present application belongs to the field of camera imaging technology, and specifically relates to a lens module, a camera and an electronic device. Background Art

[0002] With the advancement of technology, the performance of electronic devices such as smartphones and tablets has been continuously improved, and users have also put forward higher requirements for the camera performance of electronic devices. In order to improve the camera performance of the camera in the electronic device, it can be achieved by installing a variable aperture in the camera.

[0003] Since the variable aperture is an independent component, it itself has a certain size. When it is installed on the lens, it will undoubtedly increase the overall height of the camera, thereby aggravating the convex hull problem of the electronic device and weakening the appearance performance of the electronic device. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a lens module, a camera and an electronic device to reduce the height size of a camera with a variable aperture.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a lens module, which includes a lens barrel, a lens group, a variable aperture, and a driving device, wherein:

[0007] The lens barrel has a light inlet and a receiving cavity, the light inlet is communicated with the receiving cavity, and the lens group is arranged in the receiving cavity;

[0008] The variable aperture is mounted on the lens barrel, and the variable aperture is located on a side of the lens barrel where the light inlet is provided; the lens group has a convex portion, and the convex portion is protrudingly provided in the variable aperture;

[0009] The driving device is connected to the variable aperture, and the driving device is used to adjust the aperture size of the variable aperture.

[0010] In a second aspect, an embodiment of the present application provides a camera, which includes a photosensitive element and the lens module described in the first aspect of the embodiment of the present application, wherein the photosensitive element is used to receive light passing through the lens module to perform imaging.

[0011] 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, and the camera is installed in the housing.

[0012] In an embodiment of the present application, the variable aperture is installed on a side of the lens barrel where the light inlet is set, and the raised portion of the lens group is protrudingly arranged in the variable aperture, that is, the portion of the lens group protruding toward the light inlet extends into the aperture hole of the variable aperture. Under such a setting, in the height direction of the lens module, the aperture hole of the variable aperture provides an accommodating space for the lens group, which can undoubtedly effectively improve the structural compactness of the lens module, thereby reducing the height size of the camera and improving the convex hull problem of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of the lens module disclosed in the embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the exploded structure of the lens module disclosed in the embodiment of the present application;

[0015] Figure 3 A cross-sectional view of a lens module disclosed in an embodiment of the present application;

[0016] Figure 4 For about Figure 3 A partial enlarged view of the middle A;

[0017] Figure 5 A schematic diagram of the structure of the variable aperture in the first state disclosed in an embodiment of the present application;

[0018] Figure 6 A schematic diagram of the structure of the variable aperture in the second state disclosed in an embodiment of the present application;

[0019] Figure 7 A schematic diagram of the structure of the aperture carrier disclosed in the embodiment of the present application;

[0020] Figure 8 This is a schematic diagram of the structure of the stop ring disclosed in the embodiment of the present application;

[0021] Fig. 9 This is a schematic diagram of the structure of the connector and the magnet disclosed in the embodiment of the present application.

[0022] Description of reference numerals:

[0023] 100-lens barrel, 110-aperture carrier, 111-first step groove, 112-guide groove, 113-second step groove, 114-positioning protrusion, 120-barrel body,

[0024] 200-lens group, 210-first lens subgroup, 211-protruding portion, 220-second lens subgroup,

[0025] 300-variable aperture, 310-first blade, 311-first through hole, 311a-first light-transmitting portion, 311b-second light-transmitting portion, 320-second blade, 321-second through hole, 321a-third light-transmitting portion, 321b-fourth light-transmitting portion, 330-third blade, 331-third through hole, 340-fourth blade, 341-fourth through hole,

[0026] 400-driving device, 410-driving assembly, 411-magnet, 412-driving coil, 420-connecting piece, 421-mounting slot,

[0027] 500-stop ring, 510-avoidance space,

[0028] 600-Protective cover,

[0029] H1-small aperture light-transmitting area, H2-large aperture light-transmitting area. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0031] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0032] The technical solution disclosed in the embodiments of the present application is described in detail below in conjunction with the accompanying drawings.

[0033] In order to solve the technical problem in the related art that the variable aperture will increase the height of the camera, the embodiment of the present application provides a lens module. Figures 1 to 9 As shown, the lens module disclosed in the embodiment of the present application includes a lens barrel 100 , a lens group 200 , a variable aperture 300 and a driving device 400 .

[0034] The lens barrel 100 is a basic component of the lens module, which provides an installation basis for the lens group 200, the variable aperture 300 and the driving device 400, and plays a certain protective role.

[0035] like Figure 2 to Figure 4 and Figure 7 As shown, the lens barrel 100 has a light inlet and a receiving cavity, the light inlet is connected to the receiving cavity, and the lens group 200 is arranged in the receiving cavity. The receiving cavity provides an installation space for the lens group 200, and the light inlet connects the receiving cavity with the outside, so that light can enter the receiving cavity through the light inlet, and the lens group 200 performs light distribution to achieve functions such as eliminating chromatic aberration and aberration, thereby enabling the camera to obtain high-quality images.

[0036] The variable aperture 300 is mounted on the lens barrel 100, and the variable aperture 300 is located on the side of the lens barrel 100 where the light inlet is provided. It should be understood that the variable aperture 300 can adjust the light passing area by changing the size of its aperture hole, thereby controlling the light flux transmitted from the light inlet to the lens group 200. Therefore, in different light environments and different shooting requirements, it can be adapted by adjusting the variable aperture 300. In this setting, the variable aperture 300 can be adjusted before the light is projected to the lens group 200, so as to adaptively adjust the light flux entering from the light inlet.

[0037] In the related art, the variable aperture and the lens module are two independent structures, which are stacked inside the camera, making the overall size of the camera larger, and specifically manifesting as a convex hull problem on electronic devices.

[0038] In the embodiment of the present application, the lens group 200 has a protrusion 211, and the protrusion 211 is protrudingly arranged in the variable aperture 300. It should be understood that the lens group 200 includes a convex lens located on the side close to the light inlet, and the protrusion 211 refers to the convex side of the convex lens. Under this structural layout, the protrusion 211 can extend toward the side of the light inlet to the aperture hole of the variable aperture 300, and the aperture hole can avoid the protrusion 211 and provide an accommodation space for the protrusion 211. At this time, it is equivalent to that in the height direction of the lens module, part of the lens group 200 is embedded in the variable aperture 300.

[0039] It should be noted that the embodiment of the present application sets the variable aperture 300 as a part of the lens module, and the lens group 200 and the variable aperture 300 are partially embedded in the lens module, so that the variable aperture 300 and the lens group 200 share the same carrier of the lens barrel 100, which can undoubtedly improve the overall structural compactness of the lens module. Compared with the solution in the related art in which the variable aperture and the lens module are set separately, the height dimension of the lens module of the embodiment of the present application is reduced, thereby reducing the height dimension of the camera and improving the convex hull problem of the electronic device.

[0040] At the same time, the driving device 400 is connected to the variable aperture 300, and the driving device 400 is used to adjust the aperture size of the variable aperture 300. When the variable aperture 300 needs to be adjusted, the driving device 400 can be used to achieve convenient regulation, which can improve the convenience of operation.

[0041] In order to further play a protective role, the lens module can also include a protective cover 600, which is arranged on a side of the lens module close to the light inlet. Of course, the protective cover 600 needs to be provided with a light hole to facilitate the passage of light.

[0042] It can be seen from the above description that in the embodiment of the present application, the variable aperture is installed on the side of the lens barrel where the light inlet is set, and the raised portion of the lens group is protrudingly set in the variable aperture, that is, the portion of the lens group protruding toward the light inlet extends into the aperture hole of the variable aperture. Under such a setting, in the height direction of the lens module, the aperture hole of the variable aperture provides an accommodating space for the lens group, which can undoubtedly effectively improve the structural compactness of the lens module, thereby reducing the height size of the camera and improving the convex hull problem of the electronic device.

[0043] In the embodiment of the present application, the specific implementation method of the protruding portion 211 protruding from the variable aperture 300 is not limited. For example, by thinning the side of the lens barrel 100 where the light inlet is provided, when the variable aperture 300 is installed on the lens barrel 100, the height position of the variable aperture 300 will be lowered and sleeved around the protruding portion 211, that is, the protruding portion 211 is located in the aperture hole of the variable aperture 300. At this time, the overall height dimension of the lens module will inevitably be reduced.

[0044] In another embodiment, Figure 2 to Figure 4 As shown, the lens barrel 100 of the embodiment of the present application may be provided with a first stepped groove 111 on one side of the light inlet, the first stepped groove 111 is arranged around the light inlet, and the variable aperture 300 is arranged in the first stepped groove 111. It should be understood that since the first stepped groove 111 is arranged around the light inlet, the first stepped groove 111 and the opening of the light inlet are arranged in a stepped shape. When the variable aperture 300 is arranged in the first stepped groove 111, it is ensured that the variable aperture 300 is also arranged around the light inlet, so that the light flux projected from the light inlet to the lens group 200 is controlled by the variable aperture 300.

[0045] At the same time, since the variable aperture 300 is arranged in the first stepped groove 111, the first stepped groove 111 provides an accommodating space for the variable aperture 300, and the variable aperture 300 is equivalent to being embedded in the lens barrel 100. In this way, after the variable aperture 300 and the lens module are combined, they only need to occupy the size space of the lens module. Compared with the solution in which the variable aperture and the lens module are independently stacked on each other in the related technology, the structural compactness of the lens module of the embodiment of the present application is optimized. After it is installed in the camera, it can undoubtedly reduce the height of the camera and achieve the effect of improving the convex hull problem of the electronic device.

[0046] In order to further optimize the compactness of the lens module, Figure 3 As shown, the protrusion 211 of the embodiment of the present application can protrude from the top surface of the variable aperture 300. It should be understood that the top surface of the variable aperture 300 refers to the end surface of the side facing away from the lens barrel. Under this structural layout, the protrusion 211 is configured to have more parts extending into the aperture hole of the variable aperture 300 until the end of the protrusion 211 protrudes from the top surface of the variable aperture 300. At this time, the height dimension of the lens module is reduced to a minimum.

[0047] At the same time, the surrounding area of ​​the raised portion 211 protruding from the top surface of the variable aperture 300 can also provide accommodation space for other components. For example, the protective cover 600 and the stop ring 500 described later can be arranged around the protruding portion 211, thereby avoiding increasing the height dimension of the lens module.

[0048] In the embodiment of the present application, the variable aperture 300 may be of various types. For example, the variable aperture 300 is a deformable structural member, which can change the size of the aperture hole in the middle thereof by deformation. Figure 2 to Figure 7 As shown, the variable aperture 300 of the embodiment of the present application may include a first blade 310 and a second blade 320. The first blade 310 and / or the second blade 320 may be movably arranged in the first step groove 111, and the two are stacked along the optical axis direction of the lens module; the first blade 310 is provided with a first through hole 311, and the second blade 320 is provided with a second through hole 321. The driving device 400 is used to drive the first blade 310 and the second blade 320 to produce relative movement to change the size of the aperture hole.

[0049] 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 the first blade 310 and the second blade 320 are both movably disposed in the first stepped groove 111. Based on the first through hole 311, the first blade 310 has a first light-transmitting area, and based on the second through hole 321, the second blade 320 has a second light-transmitting area; at the same time, since the first blade 310 and the second blade 320 are stacked along the optical axis direction of the lens module, only the area where the first through hole 311 and the second through hole 321 overlap can smoothly allow light to pass through, and the overlapping area of ​​the first through hole 311 and the second through hole 321 defines the light-transmitting hole of the variable aperture 300.

[0050] When the first blade 310 and the second blade 320 generate relative movement under the driving action of the driving device 400, the relative positions of the first through hole 311 and the second through hole 321 will also change accordingly, so that the overlapping area of ​​the first through hole 311 and the second through hole 321 can be adjusted, thereby changing the aperture size of the variable aperture 300.

[0051] It should be noted that the variable aperture 300 of the embodiment of the present application is not provided with a housing, which means that the variable aperture 300, the lens group 200 and the driving device 400 all use the lens barrel 100 as a carrier. This can undoubtedly reduce the overall volume occupied by the variable aperture 300, thereby improving the structural compactness of the lens module, and achieving the effect of further reducing the height size of the camera.

[0052] Furthermore, if Figure 2 , Figure 5 and Figure 6 As shown, the first through hole 311 of the embodiment of the present application may include a first light-transmitting portion 311a and a second light-transmitting portion 311b that are connected, and the area of ​​the first light-transmitting portion 311a is smaller than the area of ​​the second light-transmitting portion 311b; the second through hole 321 includes a third light-transmitting portion 321a and a fourth light-transmitting portion 321b that are connected, and the area of ​​the third light-transmitting portion 321a is smaller than the area of ​​the fourth light-transmitting portion 321b; the variable aperture 300 has a first state and a second state. When the variable aperture 300 is in the first state, the first light-transmitting portion 311a and the third light-transmitting portion 321a overlap to form a small aperture light-transmitting area H1; when the variable aperture 300 is in the second state, the second light-transmitting portion 311b and the fourth light-transmitting portion 321b overlap to form a large aperture light-transmitting area H2.

[0053] In this structural layout, due to the size relationship, when the first light-transmitting portion 311a and the second light-transmitting portion 311b overlap, it is easier to form a small aperture light-transmitting area H1, and when the second light-transmitting portion 311b and the fourth light-transmitting portion 321b overlap, it is easier to form a large aperture light-transmitting area H2. Through the driving action of the driving device 400, the first blade 310 and the second blade 320 can be driven to produce relative movement, thereby switching the variable aperture 300 between the first state and the second state. When a smaller amount of light is required, the variable aperture 300 can be switched to the first state, and the small aperture light-transmitting area H1 is used for light transmission; when a larger amount of light is required, the variable aperture 300 can be switched to the second state, and the large aperture light-transmitting area H2 is used for light transmission.

[0054] In the embodiment of the present application, the specific shapes of the first through hole 311 and the second through hole 321 are not limited. For example, the first light-transmitting portion 311a, the second light-transmitting portion 311b, the third light-transmitting portion 321a and the fourth light-transmitting portion 321b can all be square holes, so that the small aperture light-transmitting area H1 and the large aperture light-transmitting area H2 are both square light-transmitting areas. Figure 2 , Figure 5 and Figure 6 As shown, the hole edges of the first through hole 311 and the second through hole 321 in the embodiment of the present application may both be arc-shaped, so that the small aperture light-transmitting area H1 and the large aperture light-transmitting area H2 are both circular light-transmitting areas.

[0055] It should be understood that, under such a configuration, the aperture edges of the first light-transmitting portion 311a, the second light-transmitting portion 311b, the third light-transmitting portion 321a and the fourth light-transmitting portion 321b are all arc-shaped. When the variable aperture 300 is switched to the first state, the aperture edges of the first light-transmitting portion 311a and the third light-transmitting portion 321a mostly overlap together to form a circular light-transmitting area. The aperture diameter of the circular light-transmitting area is relatively small, so it is a small aperture light-transmitting area H1. For details, see Figure 5 When the variable aperture 300 is switched to the second state, the aperture edges of the second light-transmitting portion 311b and the fourth light-transmitting portion 321b mostly overlap together to form a circular light-transmitting area. The aperture of the circular light-transmitting area is relatively large, so it is a large aperture light-transmitting area H2. For details, see Figure 6 .

[0056] Among the options, Figure 2 , Figure 5 to Figure 7As shown, the variable aperture 300 of the embodiment of the present application may also 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 step groove 111, the first blade 310 and the second blade 320 are arranged between the third blade 330 and the fourth blade 340; the third blade 330 is provided with a third through hole 331, and the fourth blade 340 is provided with a 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 two 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 allowing light in the overlapping area of ​​the first through hole 311 and the second through hole 321 to pass through.

[0057] It should be understood that the fourth blade 340 is the bottom blade of the variable aperture 300, which can play a supporting role for other blades; at the same time, the fourth through hole 341 can pass the light in the overlapping area of ​​the first through hole 311 and the second through hole 321, and block the light outside the overlapping area of ​​the first through hole 311 and the second through hole 321, so as to avoid the formation of stray light in the accommodating cavity and affect the image quality. The third blade 330 is the top blade of the variable aperture 300, and the third through hole 331 can also block the light outside the overlapping area of ​​the first through hole 311 and the second through hole 321, so as to avoid the formation of stray light in the accommodating cavity and affect the image quality; at the same time, the third blade 330 can also cover and shield the first blade 310 and the second blade 320, so as to avoid the first blade 310 and the second blade 320 being directly exposed and having appearance defects.

[0058] The embodiment of the present application does not limit the specific positioning and installation method of the third blade 330 and the fourth blade 340. For example, the lens barrel 100 is provided with a plurality of positioning protrusions 114 in the first stepped groove 111, the third blade 330 is provided with a third through hole 331, and the fourth blade 340 is provided with a fourth through hole 341. The third through hole 331 can be positioned and matched with the positioning protrusion 114, and the fourth through hole 341 can be positioned and matched with the positioning protrusion 114. For details, see Figure 2 and Figure 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, thereby achieving positioning cooperation.

[0059] In an embodiment of the present application, there may be a variety of relative movement modes of the first blade 310 and the second blade 320. For example, at least one of the first blade 310 and the second blade 320 is configured to be able to move toward the other, so that the size of the aperture hole of the variable aperture 300 can be adjusted by the relative movement of the first blade 310 and the second blade 320.

[0060] In another embodiment, Figure 2 to Figure 6As shown, the first blade 310 and the second blade 320 of the embodiment of the present application can be rotatably arranged in the first stepped groove 111; the driving device 400 includes a driving component 410 and a connecting member 420, the connecting member 420 is movably arranged on the lens barrel 100, and the driving component 410 is used to drive the connecting member 420 to move; the moving path of the connecting member 420 is located in the direction of the perpendicular bisector of the first connecting line, and the first connecting line is the connecting line between the rotation center of the first blade 310 and the rotation center of the second blade 320; the connecting member 420 is penetrated by the first blade 310 and the second blade 320, and the connecting member 420 drives the first blade 310 and the second blade 320 to rotate when moving.

[0061] 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 a 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 the rotation center. The connecting member 420 and the lens barrel 100 can move relative to each other, and can smoothly move under the driving action of the driving assembly 410.

[0062] At the same time, since the connecting member 420 is inserted through the first blade 310 and the second blade 320, when the connecting member 420 moves, it will interfere with the first blade 310 and the second blade 320, and then drive the first blade 310 and the second blade 320 to move. Based on the technical feature that the moving path of the connecting member 420 is located in the direction of the perpendicular midline of the first connection, when the connecting member 420 moves, it can drive the first blade 310 and the second blade 320 to rotate toward or away from each other, thereby switching the variable aperture 300 between the first state and the second state.

[0063] Specifically, Figure 5 and Figure 6 As shown, in the process of the variable aperture 300 switching from the first state to the second state, the connecting member 420 moves from bottom to top as shown in the figure, and the first blade 310 and the second blade 320 first rotate toward each other and then rotate away from each other until the two rotate to form a large aperture light-transmitting area H2; in the process of the variable aperture 300 switching 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 first rotate toward each other and then rotate away from each other until the two rotate to form a small aperture light-transmitting area H1.

[0064] In the embodiment of the present application, the driving assembly 410 may be of various types, such as a linear motor, a gear rack assembly, etc. In another embodiment, Figure 2 and Fig. 9As shown, the driving assembly 410 of the embodiment of the present application may include a magnet 411 and a driving coil 412 , wherein one of the magnet 411 and the driving coil 412 is disposed on the lens barrel 100 , and the other is disposed on the connecting member 420 .

[0065] It should be understood that, based on the principle of magnetic effect of electric current, the driving coil 412 will generate a first magnetic field around it after being energized, and there will be a second magnetic field around the magnet 411. Since like poles repel each other and unlike poles attract each other, under the interaction of the first magnetic field and the second magnetic field, the magnet 411 and the driving coil 412 will be driven by each other, thereby indirectly driving the connecting member 420 and causing the connecting member 420 to move.

[0066] Of course, the embodiments of the present application do not limit the specific arrangement relationship between the magnet 411 and the driving coil 412 and the lens barrel 100 and the connecting member 420. Fig. 9 As shown, the magnet 411 can be arranged on the connecting piece 420, and the connecting piece 420 can be provided with a mounting groove 421, and the mounting groove 421 is used to accommodate the magnet 411, which can improve the compactness of the structure, and the driving coil 412 is installed on the lens barrel 100; alternatively, the magnet 411 is installed on the lens barrel 100, and the driving coil 412 is arranged on the connecting piece 420.

[0067] Furthermore, if Figure 2 to Figure 8 As shown, a guide groove 112 connected to the first stepped groove 111 may be provided in the lens barrel 100 of the embodiment of the present application, and the connector 420 may be movably disposed in the guide groove 112. The guide groove 112 can provide a moving space for the connector 420, which can improve the compactness of the structure inside the lens module. One end of the connector 420 extends into the first stepped groove 111, so that it is convenient to set the end of the connector 420 to penetrate 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 in which the variable aperture 300 includes the third blade 330 and the fourth blade 340, the two need to be provided with an avoidance hole for the connector 420 to pass through and move.

[0068] At the same time, the lens module of the embodiment of the present application may also include a stop ring 500, which is arranged in the first step groove 111, and the central axis of the stop ring 500 is located on the optical axis of the lens module; the stop ring 500 is provided with an avoidance space 510, and the connecting member 420 is passed through the avoidance space 510, and the stop ring 500 is limitedly engaged with the connecting member 420 at the first end of the avoidance space 510 to prevent the connecting member 420 from moving out from the opening end of the guide groove 112, and the first end is an end of the avoidance space 510 close to the opening end of the guide groove 112.

[0069] Under this structural layout, the end of the connecting member 420 can extend into the avoidance space 510 and can move in the avoidance space 510; when the connecting member 420 moves to the first end of the avoidance space 510, the connecting member 420 and the stop ring 500 are limited and matched, so that the driving device 400 can be prevented from failing due to the connecting member 420 moving from the opening end of the guide groove 112 into the accommodating cavity of the lens barrel 100. It can be seen that based on the existence of the stop ring 500, it can ensure that the driving device 400 can smoothly achieve the driving function.

[0070] The embodiment of the present application does not limit the specific location of the stop ring 500, which can be directly set on the groove surface of the first stepped groove 111, or Figure 2 As shown, it is arranged on a side of the variable aperture 300 away from the lens assembly 200 . At this time, the stop ring 500 can also limit the variable aperture 300 .

[0071] Among the options, Figure 1 to Figure 3 As shown, the lens barrel 100 of the embodiment of the present application may include an aperture carrier 110 and a barrel body 120, one side of the aperture carrier 110 is provided with a light inlet and a first step groove 111, and the side of the aperture carrier 110 facing away from the light inlet is provided with a second step groove 113; the lens group 200 includes a first lens sub-group 210 and a second lens sub-group 220, the first lens sub-group 210 is installed in the second step groove 113, and the second lens sub-group 220 is provided in the barrel body 120; the aperture carrier 110 is connected to the barrel body 120 through its side provided with the second step groove 113.

[0072] Specifically, the lens barrel 100 of the embodiment of the present application is a split structure, and the aperture carrier 110 and the barrel body 120 are in a detachable connection relationship, which can improve the convenience of disassembly and assembly of the lens barrel 100. In the embodiment of the present application, the lens group 200 is divided into two parts, namely, a first lens subgroup 210 and a second lens subgroup 220. During assembly, the second lens subgroup 220 can be directly assembled in the barrel body 120, while the first lens subgroup 210 is assembled between the aperture carrier 110 and the barrel body 120; each lens in the lens group 200 can be fixed by dispensing glue during assembly.

[0073] Under this structural layout, the variable aperture 300 and the first lens sub-group 210 share the same carrier, the aperture carrier 110, so that these components can be used as an integral module, thereby improving the convenience of installation and use; at the same time, since the variable aperture 300 and the first lens sub-group 210 are both embedded in the aperture carrier 110, the overall structural compactness of the lens module can be improved.

[0074] Based on the above structural layout, the aperture carrier 110 is configured to be calibrated by adjusting the relative positions of the two when it is connected to the barrel body 120. Specifically, when the variable aperture 300 is installed on the aperture carrier 110, since the first lens subgroup 210 is also installed on the aperture carrier 110, the light-incoming direction of the variable aperture 300 can be made consistent with the optical axis direction of the first lens subgroup 210 by calibrating the configuration structure relationship during the installation process; at the same time, the operator can subsequently calibrate the optical axis direction of the lens module, that is, calibrate the optical axes of the first lens subgroup 210 and the second lens subgroup 220 to be collinear, so that the light-incoming direction of the variable aperture 300 can be made consistent with the optical axis direction of the lens module, which can significantly improve the light distribution quality of the lens module.

[0075] Of course, the embodiment of the present application does not limit the specific configuration of the lens barrel 100, which may also be an integrated structure. The embodiment of the present application also does not limit the specific number of the first lens subgroup 210 and the second lens subgroup 220. Figure 3 As shown, the first lens subgroup 210 is one lens, which is conducive to pressing and fixing it through the aperture carrier 110.

[0076] like Figure 1 to Figure 3 As shown, the embodiment of the present application also provides a camera, which includes a photosensitive element and a lens module mentioned in any of the above solutions, so that the camera has the beneficial effects of any of the above solutions, which will not be repeated here. Among them, the photosensitive element is the imaging component of the camera, and the photosensitive element is used to receive light passing through the lens module to perform imaging.

[0077] The embodiment of the present application also provides an electronic device, which includes a housing and the aforementioned camera, wherein the camera is mounted on the housing. In the embodiment of the present application, the electronic device may be a smart phone, a tablet computer, a wearable device, etc., and the embodiment of the present application does not limit the specific type of the electronic device.

[0078] In combination with the foregoing, based on the lens module of the embodiment of the present application, the overall height of the camera can be reduced, thereby achieving the effect of improving the convex hull problem of the electronic device.

[0079] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A lens module, characterized in that: It includes a lens barrel, a lens group, a variable aperture and a driving device, wherein: The lens barrel has a light inlet and a receiving cavity, the light inlet is communicated with the receiving cavity, and the lens group is arranged in the receiving cavity; The lens assembly has a convex portion; The driving device is connected to the variable aperture, and the driving device is used to adjust the aperture size of the variable aperture; The lens barrel comprises an aperture carrier and a barrel body, the light inlet and a first stepped groove are arranged on one side of the aperture carrier, the first stepped groove is arranged around the light inlet, the variable aperture is arranged in the first stepped groove, so that the protrusion is protruded in the variable aperture, and a second stepped groove is arranged 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 step groove, and the first lens sub-group has the protruding portion; the second lens sub-group is arranged in the barrel body; the aperture carrier is connected to the barrel body through a side thereof provided with the second step groove.

2. The lens module according to claim 1, characterized in that: The protrusion protrudes from the top surface of the variable aperture.

3. The lens module according to claim 1, characterized in that: The variable aperture comprises a first blade and a second blade, the first blade and / or the second blade are movably arranged 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 size of the aperture hole.

4. The lens module according to claim 3, characterized in that: The first through hole includes a first light-transmitting portion and a second light-transmitting portion connected to each other, and the area of ​​the first light-transmitting portion is smaller than the area of ​​the second light-transmitting portion; the second through hole includes a third light-transmitting portion and a fourth light-transmitting portion connected to each other, and the area of ​​the third light-transmitting portion is smaller than the area of ​​the fourth light-transmitting portion; The variable aperture has a first state and a second state. 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 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.

5. The lens module according to claim 4, characterized in that: The hole edge of the first through hole and the hole edge of the second through hole are both in arc shape, so that the small aperture light-transmitting area and the large aperture light-transmitting area are both circular light-transmitting areas.

6. The lens module according to claim 3, characterized in that: The variable aperture also includes a third blade and a fourth blade, the third blade and the fourth blade are positioned and installed in the first step 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, the fourth blade is provided with a fourth through hole, the third through hole and the fourth through hole have the same shape, and the central axes of the three through holes are located on the optical axis of the lens module, and the third through hole and the fourth through hole are used for allowing light in the overlapping area of ​​the first through hole and the second through hole to pass through.

7. The lens module according to claim 3, characterized in that: The first blade and the second blade are both rotatably disposed in the first stepped groove; the driving device comprises a driving assembly and a connecting member, the connecting member is movably disposed on the lens barrel, and the driving assembly is used to drive the connecting member to move; the moving path of the connecting member is located in the direction of the perpendicular midline of the first connecting line, and 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 connecting member is inserted through the first blade and the second blade, and the connecting member drives the first blade and the second blade to rotate when moving.

8. The lens module according to claim 7, characterized in that: The driving component includes a magnet and a driving coil. One of the magnet and the driving coil is arranged on the lens barrel, and the other is arranged on the connecting member.

9. The lens module according to claim 7, characterized in that: The lens barrel is provided with a guide groove connected with the first stepped groove, the connecting member is movably arranged in the guide groove, and one end of the connecting member extends into the first stepped groove; the lens module further comprises a stop ring, the stop ring is arranged in the first stepped groove, and the central axis of the stop ring is located on the optical axis of the lens module; The stop ring is provided with an escape space, the connecting piece is passed through the escape space, the stop ring is limitedly cooperated with the connecting piece at the first end of the escape space to prevent the connecting piece from moving out of the opening end of the guide groove, and the first end is an end of the escape space close to the opening end of the guide groove.

10. A camera, characterized in that: It comprises a photosensitive element and the lens module according to any one of claims 1 to 9, wherein the photosensitive element is used to receive light passing through the lens module to perform imaging.

11. An electronic device, characterized in that: The invention comprises a housing and the camera as claimed in claim 10, wherein the camera is installed in the housing.

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