WO2022188269A1

WO2022188269A1 - Camera module and mobile terminal

Info

Publication number: WO2022188269A1
Application number: PCT/CN2021/095258
Authority: WO
Inventors: 林墨洲; 韦怡; 余爱翔; 吴继炎; 梁镓俊; 张百成
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-03-10
Filing date: 2021-05-21
Publication date: 2022-09-15

Abstract

An embodiment of the present application provides a camera module and a mobile terminal. The camera module comprises a lens assembly, a light guide having a light inlet, and a cover located on an object side of the lens assembly. The lens assembly comprises a lens barrel and at least one lens provided in the lens barrel. A light emergent surface surrounding the periphery of the light inlet is formed at the top surface of the light guide. The object side of the lens barrel is located at the light inlet. The cover has a visible region and a light filling region which surrounds the periphery of the visible region. The visible region covers the lens and the light filling region covers the light emergent surface, wherein the light transmittance of the visible region is greater than the light transmittance of the light filling region. The light filling region covers the light emergent surface, and thus the light filling region can protect the light emergent surface from abrasion and scratch.

Description

Camera module and mobile terminal

technical field

The present application relates to the technical field of optical imaging, and in particular, to a camera module and a mobile terminal.

Background technique

With the continuous development of mobile terminals, due to their portability and rich and diverse operability, mobile terminals are now favored by a large number of users. A mobile terminal usually includes a camera module, and a user can take pictures and video through the camera module. But in low light, or some other special shooting scenes (such as macro shooting), the quality of the shooting is poor.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present application provide a camera module and a mobile terminal, and the light guide is located inside the cover plate to prevent the light guide from being damaged and scratched. The technical solutions of the embodiments of the present application are implemented as follows:

On the one hand, the embodiments of the present application provide a camera module, including:

lens assembly;

a light guide member having a light entrance, the object side surface of the light guide includes a light exit surface disposed on the outer periphery of the light entrance; and

A cover plate, covering the light guide member and the lens assembly, the cover plate includes a visible area and a supplementary light area arranged on the outer periphery of the visible area, the visible area covers at least part of the In the lens assembly, the supplementary light area covers the light emitting surface; wherein, the light transmittance of the visible area is greater than the light transmittance of the supplementary light area.

Another embodiment of the present application provides a mobile terminal, including:

The camera module provided by the above embodiment; and

a casing, the casing is formed with a light passage, the camera module is located in the casing, and the cover plate closes the light passage.

Description of drawings

1 is a schematic structural diagram of a camera module in an embodiment of the application;

Fig. 2 is the exploded schematic diagram of the structure shown in Fig. 1;

Fig. 3 is the structural schematic diagram of another viewing angle of the structure shown in Fig. 1;

4 is a cross-sectional view of FIG. 3 along the A-A direction;

Fig. 5 is an enlarged view at B in Fig. 4;

6 is a schematic structural diagram of a cover plate in an embodiment of the application;

7 is a schematic structural diagram of a light guide member in an embodiment of the present application;

FIG. 8 is a cross-sectional view along the A-A direction of FIG. 3 in another embodiment of the application;

FIG. 9 is a schematic structural diagram of the structure shown in FIG. 7 from another perspective;

FIG. 10 is a schematic structural diagram of the structure shown in FIG. 7 from another viewing angle.

Description of reference numerals

Lens assembly 10; first part 101; second part 102; lens barrel 11; flange 111; light guide 20; light entrance 20a; first connection surface 20b; light exit surface 20c; 20d; ventilation groove 20e; isolation groove 20f; light guide body 21; light guide column 211; annular light guide ring 212; board 30; visible area 31; fill light area 32; fill light body 321; fill light layer 322; receiving groove 323; first ring area 33; first body 331; first shading layer 332; second ring area 34; The second body 341 ; the second light shielding layer 342 ; the flexible circuit board 40 ; the light blocking layer 50 ; the positioning structure 60 ;

Detailed ways

The technical solutions in the application embodiments will be clearly and completely described below with reference to the accompanying drawings in the application embodiments.

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings. It should be noted that, in the embodiments of the present application, "circumferential direction" refers to the direction shown in FIG. 3 . , "top", "bottom" and "height direction" refer to the directions shown in FIG. 4 , the orientation or positional relationship in the description of the embodiments of the present application is only for the convenience of describing the present application and simplifying the description, rather than indicating or It is implied that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be regarded as a limitation on the embodiments of the present application, and all other The embodiments all belong to the protection scope of the present application.

lens assembly;

In some implementations, the light-filling region includes a light-filling body and a light-filling layer stacked from the object side to the image side, and the light-filling layer is disposed corresponding to the light exit surface.

In some embodiments, an image side surface of the light-filling body is provided with a receiving groove, and the light-filling layer is disposed in the receiving groove.

In some embodiments, the cover plate further includes a first ring area located between the visible area and the supplementary light area, and the light transmittance of the first ring area is smaller than the light transmittance of the supplementary light area. Rate;

The object side surface of the light guide further includes a first connecting surface between the light entrance and the light exit surface, and the first connecting surface seals and bonds the first ring region.

In some embodiments, the cover plate further includes a first ring area located between the visible area and the supplementary light area, and the light transmittance of the first ring area is smaller than the light transmittance of the supplementary light area. rate; the object side end of the lens assembly is sealingly bonded to the first ring region.

In some embodiments, the first ring region includes a first body and a first light shielding layer, and the first light shielding layer is disposed on the image side of the first body.

In some embodiments, the cover plate further includes a second ring area located at the outer periphery of the supplementary light area; the light transmittance of the second ring area is smaller than the light transmittance of the supplementary light area;

The object side surface of the light guide member further includes a second connecting surface located at the outer periphery of the light emitting surface, and the second connecting surface is sealed and bonded to the second ring region.

In some implementations, the second ring region includes a second body and a second light shielding layer, and the second light shielding layer is disposed on the image side of the second body.

In some implementations, the light exit surface is inclined along the image side of the light guide member to the object side of the light guide member, and is inclined in a direction away from the optical axis of the lens assembly.

In some embodiments, the camera module further includes a light blocking layer, and the light blocking layer is disposed on the inner peripheral sidewall of the light guide member forming the light entrance.

In some implementations, the cover plate further includes a first ring area located between the visible area and the supplementary light area, and a second ring area located at the outer periphery of the supplementary light area;

The object side of the light guide further includes a first connection surface between the light entrance and the light exit surface, and a second connection surface located at the outer periphery of the light exit surface;

The camera module further includes an adhesive member, the first ring area and the first connection surface, and the second ring area and the second connection surface are sealed and bonded by the adhesive member, and so that an interval space is formed between the light-filling area and the light-emitting surface; and

At least one of the first ring area, the second ring area, the first connecting surface, the second connecting surface, and the adhesive member is provided with a ventilation groove, and the ventilation groove communicates with the Space and atmosphere.

In some implementations, the light guide member includes a light guide portion formed with the light entrance port, and at least one light entrance portion disposed on the outer periphery of the light guide portion, and the object side surface of the light guide portion includes all the light guide portions. The light emitting surface is described, and at least part of the outer peripheral side surface of the light incident portion is a light incident surface; the supplementary light can enter the light guide member through the light incident surface and exit from the light emitting surface.

In some implementations, the light incident surface extends along the radial direction of the light guide portion.

In some embodiments, the light guide member includes a plurality of the light incident portions arranged at intervals along the circumference of the outer periphery of the light guide portion.

In some implementations, the light guide portion includes a light guide column formed with the light entrance port, and a light guide ring sleeved on the outer peripheral side of the light guide column, and the light entrance portion is provided on the outer circumference of the light guide ring. on the side.

In some implementations, the object-side end of the light incident portion and the object-side end of the light guide ring are farther from the cover plate than the object-side end of the light guide column.

In some implementations, the image sides of the light guide column, the light guide ring, and the light incident portion are all flush.

In some implementations, the light incident surface is connected to the outer peripheral side surface of the light guide ring, and there is a smooth transition between the outer peripheral side surface of the light incident portion and the outer peripheral side surface of the light guide ring.

In some embodiments, the light guide member further includes a scattering structure disposed on the image side of the light guide ring, and the scattering structure is used for scattering the supplementary light incident from the light incident surface to the light guide ring. on the surface of the light.

In some implementations, a plane perpendicular to the optical axis of the lens assembly is used as a projection surface, and the projection of the light exit surface is located within the projection of the scattering structure.

In some implementations, the scattering structure includes a plurality of serrations spaced along the circumference of the light guide ring, and each of the serrations extends in a direction away from the light guide rod.

In some implementations, an isolation groove is provided on the image side of the light guide ring, the isolation groove is close to the light incident portion, and at least part of the isolation groove is provided on the light incident portion and the light exit surface is located there. between the orthographic projections of the light guide member facing away from the cover plate.

In some embodiments, the object-side end of the lens assembly is located in the light entrance, the outer peripheral side of the lens assembly extends toward the image side of the light guide to form an annular flange, and the image of the light guide is The side surface is sealed and bonded with the object side surface of the annular flange, and the cover plate is sealed to cover the light entrance.

In some implementations, the camera module further includes a side-emitting lamp disposed on the outer peripheral side of the light guide, and the side-emitting lamp is used to emit supplementary light and enter the light through the outer peripheral side of the light guide. In the light guide member, the light is emitted from the light emitting surface to the shooting area.

In some embodiments, the distance between the object side of the lens assembly and the image side of the cover is 0.05mm˜0.4mm.

In some embodiments, the camera module further includes at least one positioning structure disposed on the outer peripheral side of the light guide, the positioning structure is used to cooperate with the limiting structure in the mobile terminal, so that the camera A module is assembled to the mobile terminal.

The camera module provided by any of the above embodiments; and

Referring to FIGS. 1 to 3 , one aspect of an embodiment of the present application provides a camera module. The camera module includes a lens assembly 10 , a light guide 20 having a light entrance 20 a , and a cover plate 30 located on the object side of the lens assembly 10 . , the lens assembly 10 includes a lens barrel 11 and at least one lens set in the lens barrel 11, the top surface of the light guide 20 is formed with a light exit surface 20c surrounding the outer periphery of the light entrance 20a, and the object side end of the lens barrel 11 is located at the entrance At the optical port 20a, the cover plate 30 has a visible area 31 and a supplementary light area 32 surrounding the outer periphery of the visible area 31. The visible area 31 covers the lens, and the supplementary light area 32 covers the light exit surface 20c. The light transmittance is greater than the light transmittance of the supplementary light region 32 . Specifically, the light emitting surface 20c faces the object side of the lens assembly 10 . After the supplementary light is emitted from the light emitting surface 20c, the supplementary light is emitted to the shooting area of the lens assembly 10 through the supplementary light area 32 . The imaging light enters the lens assembly 10 through the visible area 31 and the light entrance 20a.

In the embodiment of the present application, the top surface of the light guide member 20 is the above-mentioned object side surface of the light guide member 20 , and the top surface of the light guide member 20 is used for illustration later in this application. The bottom surface of the light guide member 20 is the image side surface of the light guide member, and the bottom surface of the light guide member 20 is used for illustration later in this application. Similarly, the top, bottom, top, or bottom of any component in the camera module mentioned later can be described by using the angle of the object side and the image side, which will not be repeated in this application. In addition, the visible area 31 and the supplementary light area 32 in the embodiment of the present application can be understood as dividing the cover plate 30 into multiple areas, and the physical components in each area are named in the name of the area. In other words, zones can represent physical structures. That is, the viewable area 31 can also be understood as a viewable portion. Similarly, the light-filling area 32 can also be understood as a light-filling portion. The first ring region 33 and the second ring region 34 mentioned later can also be understood as the first connecting portion and the second connecting portion, which will not be repeated in this application. The rest of this application is introduced in the name of the district.

In the camera module provided by the embodiment of the present application, first, the light guide member 20 is added, and the light exit surface 20c is arranged on the outer periphery of the light entrance 20a, so that the fill light is emitted from the light exit surface 20c, and passes through the fill light area 32. When emitted to the shooting area of the lens assembly 10 , the fill light can illuminate the subject in the shooting area, thereby improving the brightness of the subject and realizing the fill light. The imaging light reflected by the object to be photographed enters the lens assembly 10 through the visible area 31 and the light entrance 20a, so that the lens assembly 10 can complete the shooting, which increases the amount of light entering the lens assembly 10, and improves the camera module in low light. , or the shooting quality in some other special shooting scenarios (such as macro shooting).

Secondly, in the embodiment of the present application, the cover plate 30 can also be covered on the light guide member 20 and the lens assembly 10 , that is, the cover plate 30 can be disposed on the object side of the light guide member 20 and the lens assembly 10 at the same time, so that the The visible area 31 covers the lens, and the supplementary light area 32 covers the light-emitting surface 20c. On the one hand, the visible area 31 covers the lens to prevent the lens from being worn and scratched, and the light transmittance of the visible area 31 is relatively large, so as to reduce the influence of the visible area 31 on the imaging light, so that most of the imaging light can pass through. Enter the lens assembly 10 through the viewing area 31 . On the other hand, the light-filling area 32 covers the light-emitting surface 20c. Therefore, the light-filling area 32 can protect the light-emitting surface 20c and prevent the light-emitting surface 20c from being worn and scratched, thereby improving the overall appearance of the camera module and the light guide member 20. reliability.

Thirdly, the present application can also make the light transmittance of the visible area 31 larger than the light transmittance of the supplementary light area 32, so that when the user looks at the cover plate 30, since the light transmittance of the supplementary light area 32 is small, the user can be prevented from clearly seeing See the light-emitting surface 20c and other internal structures to improve the aesthetics.

The material of the cover plate 30 is not limited, for example, the cover plate 30 may be glass, plastic, silicone, or the like.

The light transmittance of the visible area 31 is greater than the light transmittance of the supplementary light area 32 is not limited. Exemplarily, in an embodiment, the visible area 31 and the supplementary light area 32 are made of different materials. For example, the visible area 31 Glass with high light transmittance is used, and plastic with low light transmittance is used for the supplementary light area 32 . In another embodiment, the visible area 31 and the supplementary light area 32 are respectively plastics with different light transmittances. For example, the cover plate 30 may be formed by a two-color injection molding process. In another embodiment, the visible area 31 and the supplementary light area 32 are integrally formed into a structure, so that the integrity is good and the strength is high. Scratch resistance, the top surface and/or bottom surface of the supplementary light area 32 is provided with a light blocking structure to reduce the light transmittance of the supplementary light area 32, for example, the light blocking structure is dark ink, dark colors include but are not limited to black or gray and many more.

Taking the application of the camera module to a mobile terminal as an example, the mobile terminal includes the camera module in any of the embodiments of the present application and a casing.

In the mobile terminal provided by the embodiment of the present application, the cover plate 30 closes the light opening, that is to say, the cover plate 30 is in contact with the outside world, and the light guide member 20 and the lens assembly 10 are hidden in the casing, which can be used according to aesthetics, scratch resistance or other requirements. , the cover plate 30 is subjected to material selection or appearance design treatment; and since the light guide member 20 is not exposed, its light-filling performance can be fully considered, reducing the requirements for the surface treatment and appearance fineness of the light guide member 20, and reducing the light guide member 20. 20 pieces of design difficulty.

The mobile terminals provided by the embodiments of the present application include but are not limited to mobile phones, tablet computers, PDAs (Personal Digital Assistants, personal digital assistants), portable computers, and the like.

In one embodiment, please refer to FIG. 1 to FIG. 3 , the camera module further includes a flexible circuit board 40 and an image sensor. The image sensor is located on the image side of the lens assembly 10. During the shooting process, the imaging light of the object to be photographed enters the lens assembly 10, and then reaches the image sensor. The photons in the imaging light hit the image sensor to generate movable charges, which are internal photoelectric charges. As a result, the mobile charges pool together to form an electrical signal. The image sensor and the main board of the mobile terminal are electrically connected by the flexible circuit board 40 . An A/D converter (analog-to-digital converter) and a DSP (Digital Signal Processor) are arranged on the main board. The A/D converter converts the electrical signal into a digital signal, and the digital signal is processed by the DSP. Finally, the image is transmitted to the screen of the mobile terminal to display the image, that is, the photographing of the object to be photographed is realized.

It should be noted that the image sensor may be CMOS (Complementary Metal Oxide Semiconductor) or CCD (Charged Coupled Device, charge coupled device), or may be other types of image sensors other than CMOS or CCD, such as CID Sensor (Charge Injection Device, charge injection device). It will be appreciated that for CMOS, the DSP can be integrated within the CMOS. CMOS has the advantages of high integration, low power consumption and low cost, and is more suitable for mobile phones with limited installation space.

The lens assembly 10 in the embodiment of the present application may be a macro lens or a super macro lens, that is, the lens assembly 10 may be used for macro or super macro photography. Macro or super macro shooting means that the camera module shoots at a large magnification when it is close to the subject. Macro generally means that the distance between the lens assembly 10 and the object to be photographed is between 2.5 cm and 10 cm, and super macro generally means that the distance between the lens assembly 10 and the object to be photographed is within 1 cm. When the lens assembly 10 provided by the embodiment of the present application is used for macro or super macro photography, photography is performed at a large magnification, for example, photography at an image ratio of 1:4 or greater (also referred to as optical magnification), wherein, Image ratio refers to the ratio between the imaging height of the image sensor and the height of the subject.

In the embodiment of the present application, when the lens assembly 10 is used for macro or super macro photography, the light emitting surface 20c surrounds the outer periphery of the light entrance 20a, the distance between the lens assembly 10 and the object to be photographed is shortened, and the light emitting surface 20c is close to the object to be photographed. The distance between the objects to be photographed is shortened synchronously, and the light guide 20 can guide the supplementary light to the shooting area of the lens assembly 10, so that the supplementary light can illuminate the object to be photographed, thereby ensuring the shooting of the camera module.

In one embodiment, please refer to FIGS. 4 to 7 , the cover plate 30 includes a first ring area 33 located between the visible area 31 and the supplementary light area 32 , and the light transmittance of the first ring area 33 is smaller than that of the supplementary light area 32 of light transmittance. In this way, by designing a plurality of areas with different light transmittances on the cover plate 30, the ID design requirements are met, and the aesthetics of the camera module is improved. When the user sees the cover plate 30, the appearance of the cover plate 30 has a plurality of annular areas. Record-shaped, good visual aesthetics, good user perception.

The first ring area 33 can be understood as the first connection part mentioned above, and the first ring area 33 is used for description and illustration hereinafter in this application.

In one embodiment, please refer to FIG. 4 to FIG. 7 , the top surface of the light guide member 20 has a first connecting surface 20b located between the light entrance 20a and the light exit surface 20c, and the bottom surface of the first ring area 33 is connected to the first connecting surface 20b. Face 20b is hermetically bonded. Specifically, both the first ring region 33 and the first connection surface 20b are annular. On the one hand, the cover plate 30 is fixedly connected with the light guide member 20, the light exit surface 20c is located on the outer periphery of the first connection surface 20b, the distance between the light exit surface 20c and the light entrance 20a is relatively far, and due to the distance between the first ring area 33 The bottom surface is sealed and bonded with the first connecting surface 20b, and there is no gap between the bottom surface of the first ring area 33 and the first connecting surface 20b, which can prevent the supplementary light from being emitted from the light-emitting surface 20c and then reflected by the cover plate 30 and projected to the lens to avoid string Therefore, to a certain extent, the supplementary light can be prevented from interfering with the imaging of the lens assembly 10 . On the other hand, the light transmittance of the first ring area 33 is smaller, which further prevents the user from observing the colloid between the bottom surface of the first ring area 33 and the first connection surface 20b.

In one embodiment, please refer to FIG. 7 , the camera module includes a light blocking layer 50 disposed on the inner peripheral sidewall of the light entrance 20a. The light blocking layer 50 can block the supplementary light and prevent the supplementary light from being projected to the lens assembly 10 from the inner peripheral side wall of the light entrance 20a, thereby avoiding the flare phenomenon.

The specific structure of the light blocking layer 50 is not limited. Exemplarily, the light blocking layer 50 includes but is not limited to dark ink, such as gray ink or black ink.

In one embodiment, the top surface of the lens barrel 11 is hermetically bonded to the bottom surface of the first ring region 33 . Specifically, the object side end of the lens barrel 11 extends into the bottom side of the first ring region 33 through the light entrance 20a. In this way, the cover plate 30 is fixedly connected to the lens barrel 11 , which can enhance the connection reliability between the cover plate 30 and the lens barrel 11 . On the one hand, there is no gap between the bottom surface of the first ring area 33 and the top surface of the lens barrel 11, which can not only prevent foreign matter from entering between the lens and the cover plate 30, but also prevent the supplementary light from exiting from the light exit surface 20c and then passing through the cover plate. 30 is reflected to the lens to prevent the supplementary light from directly projecting to the lens from the inner peripheral side wall of the light entrance 10a. Therefore, the phenomenon of flare can be avoided, and to a certain extent, the interference of the supplementary light with the imaging of the lens assembly 10 can be avoided. On the other hand, the distance between the lens and the cover plate 30 is closer, so that the foreign objects inside the cover plate 30 can be farther away from the object surface of the lens assembly 10 , thereby improving the tolerance of the lens assembly 10 to foreign objects such as white spots and hairs, and reducing assembly In the process, the adverse effect of white dots and hairs is generated. In addition, the size of the camera module in the height direction is small, so that the mobile terminal can be lighter and thinner. On the other hand, the light transmittance of the first ring area 33 is smaller, which further prevents the user from observing the colloid between the bottom surface of the first ring area 33 and the top surface of the lens barrel 11 .

In an embodiment, please refer to FIG. 8 , the light emitting surface 20 c is inclined along the direction from the image side to the object side and away from the optical axis of the lens assembly 10 . It can also be understood that the vertical distance between the side of the light exit surface 20c close to the light entrance port 20a and the cover plate 30 is greater than the vertical distance between the side of the light exit surface 20c away from the light entrance port 20a and the cover plate 30 . Vertical distance between cover plates 30 . That is, from the image side of the lens assembly 10 to the object side of the lens assembly 10 , the light exit surface 20 c is inclined in a direction away from the optical axis of the lens assembly 10 . From the image side of the lens assembly 10 to the object side of the lens assembly 10 , the light emitting surface 20c is substantially in the shape of a gradually expanding bell mouth. In this way, it is convenient for most of the supplementary light to be projected into the shooting area of the lens assembly 10, and the utilization rate of the supplementary light is improved.

In one embodiment, referring to FIGS. 4 to 7 , the cover plate 30 includes a second ring region 34 surrounding the outer periphery of the supplementary light region 32 , and the light transmittance of the second ring region 34 is smaller than that of the supplementary light region 32 . The top surface of the light guide member 20 has a second connecting surface 20d surrounding the outer periphery of the light exit surface 20c, and the bottom surface of the second annular region 34 is sealed and bonded to the second connecting surface 20d. Specifically, both the second ring region 34 and the second connection surface 20d are annular. In this way, the cover plate 30 and the light guide member 20 are fixedly connected. Since the second ring area 34 surrounds the outer circumference of the supplementary light area 32, it can prevent external dust, dander and other debris from entering the cover plate 30 and the light guide member 20. between the cover plate 30 and the lens to improve the reliability of the camera module. On the other hand, the light transmittance of the second ring region 34 is smaller, which further prevents the user from observing the colloid between the bottom surface of the second ring region 34 and the second connecting surface 20d.

The specific manner of sealing and bonding is not limited. Exemplarily, in an embodiment, bonding is performed by dispensing, double-sided tape, or foam tape.

The second ring region 34 can be understood as the above-mentioned second connecting portion, and the second ring region 34 is used for description and illustration hereinafter in this application.

In one embodiment, please refer to FIG. 5 together, the light-filling region 32 includes a light-filling body 321 and a light-filling layer 322 , and the light-filling layer 322 is disposed on the light-filling book 321 body and close to the light guide member On one side of 20 , the light-filling layer 322 corresponds to the light-emitting surface 20 c , and the light transmittance of the visible area 31 is greater than the light transmittance of the light-filling layer 322 .

In the present application, by arranging the light-filling layer 322 on the light-filling body 321 , the light transmittance of the light-filling body 321 is reduced, so that the light transmittance of the visible area 31 is greater than that of the light-filling layer 322 . In addition, the supplementary light body 321 is a part of the cover plate 30, or it can also be understood that the cover plate 30 includes a body, and the material of the body includes glass. According to the position of the object side of the light guide 20 corresponding to the body, the body can be divided into The supplementary light body 321 , and the subsequent first body 331 and the second body 341 .

In one embodiment, a receiving groove is formed on the side of the light-filling body 321 close to the light guide member 20 , and the light-filling layer 322 is disposed in the receiving groove.

By opening a receiving groove 323 on the side of the light-filling body 321 close to the light guide, and then arranging the light-filling layer 322 in the receiving groove 323, the difficulty of preparing the light-filling layer 322 can be reduced, and the cover can be reduced. Thickness of plate 30 .

In one embodiment, please refer to FIG. 6 together, the cover plate 30 further includes a first ring area 33 located between the visible area 31 and the fill light area 32 , and the first ring area 33 includes The first body 331 and the first body 332, the first body 332 is disposed on the side of the first body 331 close to the light guide member 20, the first body 331 and the supplementary light body 321 are integrated type structure, the first body 332 is disposed between the visible area 31 and the light-filling layer 322; the first body 332 corresponds to the first connection surface 20b, and the transparent surface of the first body 332 The light rate is smaller than the light transmittance of the supplementary light layer 322 .

By arranging the first body 332 on the side of the first body 331 close to the light guide member 20 , and making the light transmittance of the first body 332 smaller than the light transmittance of the supplementary light layer 322 , the position of the first body 331 is reduced. The light transmittance even reduces the light transmittance at the first body 331 to 0.

In one embodiment, please refer to FIG. 6 , the cover plate 30 further includes a second ring area 34 located at the outer periphery of the light supplement area 32 , and the second ring area 34 includes a second body 341 and a second light shielding layer 342, the second light-shielding layer 342 is disposed on the side of the second body 341 close to the light guide member 20, the second body 341 and the supplementary light body 321 are integral structures, the second The light-shielding layer 342 is disposed on the outer periphery of the supplementary light layer 322 ; the second light-shielding layer 342 corresponds to the second connecting surface 20 d , and the light transmittance of the second light-shielding layer 342 is smaller than that of the supplementary light layer 322 . Transmittance.

By disposing the second light shielding layer 342 on the side of the second body 341 close to the light guide member 20, and making the light transmittance of the second light shielding layer 342 smaller than that of the supplementary light layer 322, the second body is reduced The light transmittance at 341 even reduces the light transmittance at the second body 341 to 0.

The first ring area 33 , the second ring area 34 and the supplementary light area 32 can be designed with different light transmittances according to requirements. In an embodiment, please refer to FIGS. 4 to 7 , the first ring area 33 and the second ring area 34 The transmittance of the light source is zero, and the transmittance of the supplementary light area 32 is 50%. To prevent the user from seeing the colloid or other internal structures through the first ring area 33 and the second ring area 34 , the fill light area 32 can be designed to be semi-transparent according to the light fill requirements and the perspective effect. In this way, the appearance effect of the ID is achieved and the functional requirements are met at the same time.

The different light transmittances of the first ring area 33 , the second ring area 34 and the light-filling area 32 are not limited. Exemplarily, in one embodiment, the cover plate 30 is an integrally formed structure. For example, the cover plate 30 is For glass material, inks with different light transmittances can be provided on the first ring area 33 , the second ring area 34 and the fill light area 32 . The first ring area 33 and the second ring area 34 are provided with ink with substantially zero light transmittance, and the fill light area 32 is provided with ink with light transmittance greater than zero and less than 100%. In another embodiment, different textures or patterns may be set on the first ring area 33 , the second ring area 34 and the supplementary light area 32 to make the first ring area 33 , the second ring area 34 and the supplementary light area 32 transparent. The light rate is different. In another embodiment, the first ring area 33, the second ring area 34 and the supplementary light area 32 are made of plastic or glass of different colors or materials, and the first ring area 33, the second ring area 34 and the supplementary light area 32 can also be The light areas 32 have different light transmittances.

In an embodiment, please refer to FIG. 3 , a plane perpendicular to the optical axis of the lens assembly 10 is used as the projection plane, the projection pattern of the cover plate 30 is a circle, and the diameter of the cover plate 30 is between 6 mm and 15 mm. In this way, the size of the cover plate 30 is moderate, which can not only protect the light guide member 20 but also avoid excessive exposure of the internal structure.

In one embodiment, please refer to FIGS. 4 to 7 , the cover plate 30 includes a first ring area 33 located between the visible area 31 and the supplementary light area 32 , and a second ring area 34 surrounding the outer periphery of the supplementary light area 32 , the top surface of the light guide member 20 has a first connecting surface 20b located between the light entrance 20a and the light exit surface 20c, and a second connecting surface 20d surrounding the periphery of the light exit surface 20c. A connecting surface 20b is sealed and bonded, the bottom surface of the second ring area 34 is sealed and bonded to the second connecting surface 20d, a space 20c' is formed between the light exit surface 20c and the bottom surface of the supplementary light area 32, and the light guide member 20 includes a The ventilation grooves 20e on the first connecting surface 20b and/or the second connecting surface 20d communicate with the space 20c' and the atmosphere. On the one hand, during the bonding process, the space 20c' provides a certain overflow space for the colloid, so that the bottom surface of the first ring region 33 and the first connecting surface 20b are sealed and bonded, and the bottom surface of the second ring region 34 is connected with the second The surface 20d is sealed and bonded. On the other hand, the air in the interval space 20c' can escape through the ventilation groove 20e, so as to prevent the interval space 20c' from forming a closed space during the bonding process, which affects the colloid bonding.

The number of the ventilation grooves 20e is not limited, and may be one or a plurality of them.

It should be noted that the multiple in the embodiments of the present application refers to two or more in number.

The specific manner of forming the space 20c between the light emitting surface 20c and the bottom surface of the supplementary light region 32 is not limited. In an embodiment, please refer to FIG. 4 and FIG. Higher than the height of the light emitting surface 20c, an interval space 20c' is formed between the light emitting surface 20c and the bottom surface of the supplementary light area 32. As shown in FIG.

The specific arrangement position of the ventilation groove 20e is not limited. In an embodiment, please refer to FIG. 2 and FIG. 7 , the first connection surface 20b is provided with a ventilation groove 20e. In another embodiment, the second connecting surface 20d is provided with a ventilation groove 20e. In yet another embodiment, both the first connecting surface 20b and the second connecting surface 20d are provided with ventilation grooves 20e.

In one embodiment, please refer to FIG. 3 , FIG. 4 , and FIGS. 7 to 10 , the light guide member 20 includes a light guide body 21 formed with a light entrance port 20 a and at least one light guide body 21 disposed on the outer peripheral side of the light guide body 21 . In the light portion 22, in the height direction of the light guide member 20, the top surface of the light incident portion 22 is lower than the top surface of the light guide body 21, the light exit surface 20a is formed on the top surface of the light guide body 21, and the light incident portion 22 has The light incident surface 22 a extends from the outer peripheral side of the light guide body 21 along the radial direction of the lens assembly 10 .

The supplementary light enters the light incident portion 22 from the light incident surface 22a, and the supplementary light enters the light guide body 21 approximately along the circumferential direction of the lens assembly 10, and then exits from the light exit surface 20c. In this way, it can be avoided that the brightness of the light exit surface 20c is too high where the light incident surface 22a is located, and the degree of explosion of lights can be reduced. The light guide body 21 can disperse the supplementary light and avoid the concentrated emission of the supplementary light, so that the uniformity of the supplementary light emitted from the light-emitting surface 20c is better, and the phenomenon of uneven light and dark on the light-emitting surface 20c is avoided, which not only improves the appearance of the light-emitting surface 20c. Uniformity, but also improve the uniformity of the fill light in the shooting area.

It should be noted that the uniformity of the appearance of the light emitting surface 20c refers to the uniformity of the brightness exhibited by the light emitting surface 20c after the light element 20 is illuminated.

The specific structure of the light guide body 21 is not limited. In an exemplary embodiment, please refer to FIG. 3 , FIG. 4 , and FIGS. 7 to 10 . The light guide body 21 includes a light guide column 211 formed with a light entrance 20 a and a surrounding The annular light guide ring 212 located on the outer periphery of the light guide rod 211 has a top surface lower than the top surface of the light guide rod 211 in the height direction of the light guide member 20 , and the light exit surface 20 a is formed on the top surface of the light guide rod 211 , the light incident portion 22 is arranged on the outer peripheral side surface of the annular light guide ring 212 .

After the fill light enters the annular light guide ring 212 from the light entrance part 22, the fill light is further dispersed by the annular light guide ring 212, and the fill light evenly distributed in the annular light guide ring 212 enters the light guide column 211 to prevent the fill light from being directly projected towards the exit light. The surface 20c makes the uniformity of the supplementary light emitted from the light-emitting surface 20c better, thereby further improving the appearance uniformity of the light-emitting surface 20c, further avoiding the problem of uneven light and dark on the light-emitting surface 20c, and further improving the uniformity of the supplementary light in the shooting area. sex.

In a specific embodiment, please refer to FIG. 7 , both the first connection surface 20 b and the second connection surface 20 d are formed on the top surface of the light guide column 211 .

The specific structure and shape of the light guide column 211 is not limited. In one embodiment, please refer to FIG. 4 and FIG. 7 . Taking the plane perpendicular to the optical axis of the lens assembly 10 as the projection surface, the projected outer contour of the light guide column 211 is circular, that is, Said, the light guide rod 211 is substantially cylindrical.

In order to further improve the uniformity of the appearance of the light emitting surface 20c and the uniformity of the supplementary light to the shooting area, in an embodiment, please refer to FIG. 4 and FIG. In this way, in the height direction of the light guide member 20, the distance between the light incident surface 22a and the light exit surface 20c is farther, so as to further reduce the degree of explosion.

In one embodiment, please refer to FIG. 7 and FIG. 9 , a portion of the annular light guide ring 212 extends outward along its circumferential direction to form a light incident portion 22 , and an end face of the light incident portion 22 is a light incident surface 22 a. In this way, the area of the light incident surface 22 a is relatively large, so that the light incident portion 22 can enter the supplementary light into the light incident portion 22 from the light incident surface 22 a.

In order to further reduce the loss of the supplementary light, in an exemplary embodiment, please refer to FIG. 7 and FIG. 9 , the outer peripheral side surface 20b of the light incident portion is an outwardly convex convex arc surface, and the outer peripheral side surface 22b of the light incident portion is the same as the one shown in FIGS. 7 and 9 . Smooth transition between the outer peripheral sides of the annular light guide ring 212 . Specifically, the outer edge of the outer peripheral side surface 22b of the light incident portion is respectively connected to the top surface of the light incident portion 22, the bottom surface of the light incident portion 22, and the light incident surface 22a. In this way, the formation of sharp corners on the light incident portion 22 is avoided, thereby reducing the loss of the supplementary light on the light incident portion 22 .

In an embodiment, please refer to FIG. 7 and FIG. 9 , the light incident portion 22 and the light guide body 21 are integrally formed. For example, the light incident portion 22 and the light guide body 21 are integrally injection-molded.

The specific structure and shape of the light incident portion 22 is not limited. For example, in an embodiment, please refer to FIG. 7 and FIG. 9 , a plane perpendicular to the optical axis of the lens assembly 10 is used as the projection plane, and the light incident portion 22 is approximately a fish fin. shape. In this way, the contour line of the outer peripheral side surface 22b of the light incident portion is an outwardly convex convex arc line.

In a specific embodiment, please refer to FIG. 7 and FIG. 9 , a plane perpendicular to the optical axis of the lens assembly 10 is used as the projection surface, and the circle where the projected outer contour of the annular light guide ring 212 is located is between the outer peripheral side surface 22b of the light incident portion. The circle where the contour line is located is inscribed, and the tangent point between the two is located at the end of the light incident portion 22 away from the light incident surface 22a. In this way, it is further convenient for the light incident portion 22 to collect the supplementary light into the light guide member 20 .

The number of light incident parts 22 is not limited. For example, in an embodiment, please refer to FIG. 7 and FIG. 9 , the number of light incident parts 22 is multiple, which is convenient for more supplementary light to enter the light guide member 20 , so as to improve the overall brightness; for example, the number of light incident parts 22 may be between 2 and 20. The plurality of light incident portions 22 are evenly distributed along the circumferential interval of the lens assembly 10 . In this way, the uniformity of the supplementary light is improved. Exemplarily, the number of light incident portions 22 is two, and the two light incident portions 22 are evenly distributed along the circumferential interval of the lens assembly 10 . In another embodiment, the number of light incident parts 22 is one.

In an embodiment, please refer to FIG. 9 and FIG. 10 , the light guide member 20 includes a scattering structure 23 disposed on the bottom surface of the light guide body 21 , and the scattering structure 23 can scatter the supplementary light. In this way, the supplementary light is scattered by the scattering structure 23 and then emitted from the light-emitting surface 20c to the shooting area of the lens assembly 10, and the distribution of the supplementary light is more uniform.

In one embodiment, please refer to FIGS. 9 and 10 , a plane perpendicular to the optical axis of the lens assembly 10 is used as the projection surface, and the projection of the light exit surface 20 c is located within the projection of the scattering structure 23 . In this way, it is ensured that the supplementary light rays emitted by the light emitting surface 20c are scattered by the scattering structure 23, which can prevent the supplementary light rays from being too concentrated, avoid the problem of uneven brightness and darkness on the light emitting surface 20c, and further improve the appearance uniformity of the light emitting surface 20c and the shooting performance. The fill light uniformity of the area.

The specific structural form of the scattering structure 23 is not limited. In an exemplary embodiment, please refer to FIG. 9 and FIG. 10 , the scattering structure 23 includes a plurality of saw teeth 231 distributed along the circumference of the lens assembly 10 at intervals, and the saw teeth 231 are along the lens. Radial extension of assembly 10 . The sawtooth 231 changes the propagation direction of the supplementary light, so that the supplementary light is dispersed and distributed, so as to improve the uniformity of the supplementary light distribution. The sawtooth 231 can also be understood as forming a scattering member in the scattering structure 23 . The serrations 231 are used for introduction and illustration later in this application.

In order to further avoid the problem of uneven brightness and darkness on the light exit surface 20c, in an embodiment, please refer to FIG. 4, FIG. 9 and FIG. 10, the bottom surface of the light guide body 21 is formed with an isolation groove 20f located where the light incident portion 22 is located, so as to The plane perpendicular to the optical axis of the lens assembly 10 is the projection surface, and the outer edge line of the isolation groove 20f is located radially outside the outer edge line of the light exit surface 20c. It can also be understood that the isolation groove 20f is close to the light incident portion 22 , and at least part of the isolation groove 20f is provided in the light incident portion 22 , and the light exit surface 20c is located away from the light guide member 20 . between the orthographic projections on one side of the cover plate 30 . That is to say, taking the plane perpendicular to the optical axis of the lens assembly 10 as the projection surface, at least part of the projection of the isolation groove 20f is located between the projection of the light incident portion 22 and the projection of the light exit surface 20c. The brightness of the fill light is higher, and the isolation groove 20f can reduce the fill light that directly enters the light guide body 21 where the light incident portion 22 is located, and plays a role in blocking light. It is balanced with the brightness of the light exit surface 20c away from the light incident portion 22, thereby further improving the appearance uniformity of the light exit surface 20c and the uniformity of the supplementary light for the shooting area.

In an embodiment, please refer to FIG. 4 , the lens assembly 10 and the light guide member 20 are fixedly connected. The lens assembly 10 and the light guide 20 can be connected as a whole, and then assembled to the mobile terminal, which can not only reduce the assembly error between the lens assembly 10 and the light guide 20, but also improve the drop reliability of the camera module. .

In order to prevent foreign objects from falling between the cover plate 30 and the lens and affecting the shooting of the camera module, in an embodiment, please refer to FIG. 2 and FIG. 4 , the object side end of the lens barrel 11 is located in the light entrance 20a, the The outer peripheral side extends from the bottom side of the light guide member 20 to form an annular flange 111 , the bottom surface of the light guide member 20 is sealed and bonded to the top surface of the annular flange 111 , and the cover plate 30 is sealed to cover the light entrance 20 a. It can also be understood that, please refer to FIG. 4 and FIG. 9 together, the lens assembly includes a first part 101 and a second part 102 connected to each other, the first part 101 is arranged in the light entrance 20a, the first part 101 The second part 102 is disposed outside the light entrance 20a. The peripheral side surface of the second portion 102 protrudes from the peripheral side surface of the first portion 101 , and at least part of the second portion 102 protruding from the first portion 101 is sealed and bonded to the light guide member 20 away from the surface of one side of the cover plate 30 . Since the lens barrel 11, the light guide member 20 and the cover plate 30 together form a closed space around the light entrance 20a, the lens is located in the closed light entrance 20a, which can prevent foreign matter from contaminating the lens and prevent foreign matter from adhering to the cover plate 30. The bottom surface of the camera module affects the shooting of the camera module. Since the production environment of the camera module production process requires higher cleanliness, it is usually a dust-free environment. During the production of the camera module, the cover plate 30, the light guide member 20 and the annular flange 111 together surround the light entrance 20a. A closed space is formed, and the lens is located in the closed light entrance 20a, which can prevent foreign objects from falling between the cover plate 30 and the lens during the production process, thereby improving the quality of the camera module. On the other hand, by adopting the method of sealing and bonding, the cover plate 30 and the light guide member 20 are reliably connected, and the drop reliability is improved. On the other hand, in the subsequent maintenance process, not only the maintenance personnel can be prevented from violently disassembling the lens assembly 10, the light guide 20 and the cover plate 30, but also foreign objects can be prevented from entering between the cover plate 30 and the lens during the maintenance process.

The specific manner for the cover plate 30 to seal and cover the optical port 20a is not limited. For example, in an embodiment, please refer to FIG. 4 to FIG. 7 . The bottom surface of the ring region 33 is hermetically bonded to the first connecting surface 20b. It is not only convenient for the cover plate 30 to seal and cover the light entrance 20a, but also can prevent the user from observing the glue between the bottom surface of the first ring region 33 and the first connecting surface 20b. In one embodiment, please refer to FIGS. 4 to 7 , the second ring region 34 and the second connecting surface 20d are both annular, and the bottom surface of the second ring region 34 is sealed and bonded to the second connecting surface 20d. In this way, the cover plate 30 can also seal and cover the light entrance 20a, and can also prevent the user from observing the glue between the bottom surface of the second ring region 34 and the second connecting surface 20d.

The specific manner of sealing and bonding the bottom surface of the light guide member 20 and the top surface of the annular flange 111 is not limited. For example, please refer to FIG. 4 . In one embodiment, the bottom surface of the light guide column 211 and the top surface of the annular flange 111 Seal bonding.

In one embodiment, the camera module includes a side-emitting lamp located on the outer peripheral side of the light guide member 20, and the supplementary light emitted by the side-emitting lamp is injected into the light guide member 20 from the outer peripheral side of the light guide member 20, and is emitted from the light-emitting surface 20c. It is emitted to the shooting area of the lens assembly 10 . The supplementary light rays enter the light guide member 20 from the outer peripheral side of the light guide member 20, and do not directly face the light exit surface 20c. The supplementary light is concentratedly emitted from the light emitting surface 20c, which further makes the appearance uniformity of the light emitting surface 20c after lighting up, and avoids the problem of uneven distribution of light and dark after the light emitting surface 20c is lit. Since the side-emitting lamps are located on the outer peripheral side of the light guide member 20, the user can also be prevented from seeing the side-emitting lamps through the light guide member 20. In this way, it is convenient to hide the side-emitting lamps in other structures, improving the appearance of fineness, thereby enhancing the user experience. .

It should be noted that a side-emitting lamp refers to a light-emitting surface whose side surface emits supplementary light. The light-emitting surface of the side-emitting lamp connects the bottom surface of the side-emitting lamp and the top surface of the side-emitting lamp. The power terminals of the side-emitting lamps are located on the bottom surface thereof. The light-emitting surface of the side-emitting lamp does not directly face the light-emitting surface 20c, so as to improve the appearance uniformity and supplementary light uniformity of the light-emitting surface 20c.

Exemplarily, in an embodiment, referring to FIG. 3 , the light-emitting surface of the side-emitting lamp faces the light-incident surface 22 a of the light-incident portion 22 . The supplementary light rays enter into the light guide body 21 approximately along the circumferential direction of the lens assembly 10, which can prevent the supplementary light rays from directly entering the light guide body 21 along the radial direction of the lens assembly 10, thereby further preventing the light emitting surface 20c from being located where the side light-emitting lamps are located. The brightness is too high, further reducing the degree of explosion. The light guide body 21 can disperse the supplementary light and avoid the concentrated emission of the supplementary light, so that the uniformity of the supplementary light emitted from the light-emitting surface 20c is better, further avoiding the problem of uneven light and dark on the light-emitting surface 20c, and further improving the light-emitting surface 20c. Appearance uniformity and fill light uniformity to the shooting area. In another embodiment, the outer peripheral side of the light guide member 20 is formed with a light incident area for the supplementary light to enter, and the supplementary light enters the light guide member 20 from the light incident area along the radial direction of the lens assembly 10 . That is to say, a light incident area for the incident light of the supplementary light is reserved on the outer peripheral side surface of the light guide member 20 , and the light emitting surface of the side-emitting lamp faces the light incident area. Exemplarily, in one embodiment, a part of the area of the outer peripheral side of the light guide 20 is directly reserved as a light incident area, and another part of the area of the outer peripheral side of the light guide 20 is subjected to reflection treatment to form a reflection area, and the reflection treatment includes but It is not limited to coating a reflective layer and the like. In this way, the reflective area of the light guide member 20 can reflect the supplementary light back into the light guide member 20, and only the light incident area can enter the supplementary light.

In one embodiment, referring to FIG. 4 , the minimum distance between the lens closest to the cover plate 30 and the bottom surface of the viewing area 31 is between 0.05 mm and 0.4 mm. It can also be understood that the distance between the surface of the lens assembly 10 on the side close to the cover plate 30 and the surface of the cover plate 30 on the side close to the lens assembly 10 is 0.05mm˜0.4mm. For example, the minimum distance between the lens closest to the cover 30 and the bottom surface of the viewing area 31 is 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm or 0.4mm, etc. On the one hand, by shortening the distance between the lens and the cover plate 30, the foreign objects inside the cover plate 30 can be farther away from the object surface of the lens assembly 10, thereby improving the tolerance of the lens assembly 10 to foreign objects such as white dots and hairs, and reducing assembly In the process, the adverse effects of white dots and hairs are produced. On the other hand, the size of the camera module in the height direction is small, so that the mobile terminal can be thinner and lighter.

In one embodiment, please refer to FIG. 2 and FIG. 4 , the object side end of the lens barrel 11 is located in the light entrance 20a. Specifically, the light entrance 20a penetrates the top surface and the bottom surface of the light guide member 20, the object side end of the lens barrel 11 extends into the light entrance 20a from the bottom side of the light entrance 20a, and the cover plate 30 covers the light entrance 20a. top. On the one hand, the lens assembly 10 can be protected from damage to the lens. On the other hand, the distance between the lens and the cover 30 is made smaller, and the distance between the lens and the cover 30 is shortened, so that the foreign objects inside the cover 30 can be farther away from the object surface of the lens closest to the cover 30 , so as to improve the tolerance of the lens to foreign objects such as white-spot hairs, and reduce the adverse effects of white-spot hairs during the assembly process.

In one embodiment, please refer to FIGS. 1 to 3 and FIGS. 7 to 10 , the camera module includes at least one positioning structure 60 disposed on the outer peripheral side of the light guide member 20 . The mobile terminal is provided with a limiting structure adapted to the shape of the positioning structure 60 , and the positioning structure 60 is inserted into the limiting structure to position and assemble the camera module on the mobile terminal.

The specific structure of the positioning structure 60 is not limited. Exemplarily, in an embodiment, the positioning structure 60 is a protrusion, and the limiting structure is a groove adapted to the shape of the protrusion. In another embodiment, the positioning structure 60 is a groove, and the limiting structure is a protrusion adapted to the shape of the groove. The protrusions are inserted into the grooves to position and assemble the camera module on the mobile terminal.

In one embodiment, referring to FIGS. 1 to 3 and FIGS. 7 to 10 , the light guide 20 and the positioning structure 60 are integrally formed, for example, the light guide 20 and the positioning structure 60 are integrally injection molded.

In the above description, references to "some embodiments", "an embodiment", "another embodiment", "a particular embodiment" describe a subset of all possible embodiments and, therefore, throughout the specification The appearances of "in some embodiments" or "in an embodiment" in various places are not necessarily necessarily referring to the same embodiment, and furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments, It is to be understood that "some embodiments", "an embodiment", "another embodiment" and "a particular embodiment" may be the same or different subsets of all possible embodiments and may be used without conflict combined with each other.

The above is only the embodiment of the present application, but the protection scope of the present application is not limited to this. Covered within the scope of protection of this application.

Claims

A camera module, comprising:

lens assembly;

a light guide member having a light entrance, the object side surface of the light guide includes a light exit surface disposed on the outer periphery of the light entrance; and

A cover plate, covering the light guide member and the lens assembly, the cover plate includes a visible area and a supplementary light area arranged on the outer periphery of the visible area, the visible area covers at least part of the In the lens assembly, the supplementary light area covers the light emitting surface; wherein, the light transmittance of the visible area is greater than the light transmittance of the supplementary light area.
The camera module according to claim 1, wherein the light-filling area comprises a light-filling body and a light-filling layer sequentially arranged from the object side to the image side, and the light-filling layer is arranged corresponding to the light emitting surface .
The camera module according to claim 2, wherein a receiving groove is provided on the image side of the light-filling body, and the light-filling layer is arranged in the receiving groove.
The camera module according to claim 1, wherein the cover plate further comprises a first ring area located between the visible area and the supplementary light area, and the light transmittance of the first ring area is The rate is less than the transmittance of the supplementary light area;

The object side surface of the light guide further includes a first connecting surface between the light entrance and the light exit surface, and the first connecting surface seals and bonds the first ring region.
The camera module according to claim 1, wherein the cover plate further comprises a first ring area located between the visible area and the supplementary light area, and the light transmittance of the first ring area is The light transmittance is less than the light transmittance of the supplementary light area; the object side end of the lens assembly is sealed and bonded to the first ring area.
The camera module according to claim 5, wherein the first ring area comprises a first body and a first light shielding layer, and the first light shielding layer is disposed on the image side of the first body.
The camera module according to any one of claims 1-6, wherein the cover plate further comprises a second ring area located at the outer periphery of the supplementary light area; the light transmittance of the second ring area less than the transmittance of the supplementary light area;

The object side surface of the light guide member further includes a second connecting surface located at the outer periphery of the light emitting surface, and the second connecting surface is sealed and bonded to the second ring region.
The camera module according to claim 7, wherein the second ring region comprises a second body and a second light shielding layer, and the second light shielding layer is disposed on the image side of the second body.
The camera module according to claim 5, wherein the light exit surface is inclined along the image side of the light guide member to the object side of the light guide member, and is inclined in a direction away from the optical axis of the lens assembly .
The camera module according to claim 1, wherein the camera module further comprises a light blocking layer, and the light blocking layer is disposed on the inner peripheral side wall of the light guide member forming the light entrance port .
The camera module according to claim 1, wherein the cover plate further comprises a first ring area located between the visible area and the supplementary light area, and a first ring area located at the outer periphery of the supplementary light area the second ring area;

The object side of the light guide further includes a first connection surface between the light entrance and the light exit surface, and a second connection surface located at the outer periphery of the light exit surface;

The camera module further includes an adhesive member, the first ring area and the first connection surface, and the second ring area and the second connection surface are sealed and bonded by the adhesive member, and so that an interval space is formed between the light-filling area and the light-emitting surface; and

At least one of the first ring area, the second ring area, the first connecting surface, the second connecting surface, and the adhesive member is provided with a ventilation groove, and the ventilation groove communicates with the Space and atmosphere.
The camera module according to claim 1, wherein the light guide member comprises a light guide portion formed with the light entrance port, and at least one light entrance portion disposed on the outer periphery of the light guide portion, The object side surface of the light guide part includes the light exit surface, and at least part of the outer peripheral side surface of the light entrance part is a light entrance surface; the supplementary light can enter the light guide member through the light entrance surface and exit from the light entrance surface. Describe the glossy exit.
The camera module according to claim 12, wherein the light incident surface extends along a radial direction of the light guide portion.
The camera module according to claim 12, wherein the light guide member comprises a plurality of the light incident portions arranged at intervals along the circumferential direction of the outer periphery of the light guide portion.
The camera module according to claim 12, wherein the light guide portion comprises a light guide column formed with the light entrance port, and a light guide ring sleeved on the outer peripheral side of the light guide column, and the light entrance The light part is arranged on the outer peripheral side surface of the light guide ring.
The camera module according to claim 15, wherein the object-side end of the light incident portion and the object-side end of the light guide ring are farther from the cover plate than the object-side end of the light guide column.
The camera module according to claim 15, wherein the image side surfaces of the light guide column, the light guide ring, and the light incident portion are all flush.
The camera module according to claim 15, wherein the light incident surface is connected to the outer peripheral side surface of the light guide ring, and the outer peripheral side surface of the light incident portion and the outer peripheral side surface of the light guide ring are smoothly transitioned .
The camera module according to claim 15, wherein the light guide member further comprises a scattering structure disposed on the image side of the light guide ring, and the scattering structure is used for incident light from the light incident surface. The supplementary light is scattered to the light-emitting surface.
The camera module according to claim 19, wherein a plane perpendicular to the optical axis of the lens assembly is used as a projection surface, and the projection of the light emitting surface is located within the projection of the scattering structure.
The camera module according to claim 19, wherein the scattering structure comprises a plurality of serrations arranged at intervals along the circumference of the light guide ring, and each of the serrations extends in a direction away from the light guide column .
The camera module according to claim 19, wherein an image side surface of the light guide ring is provided with an isolation groove, the isolation groove is close to the light entrance portion, and at least part of the isolation groove is provided in the entrance The light part and the light emitting surface are between the orthographic projections of the side of the light guide member facing away from the cover plate.
The camera module according to claim 1, wherein the object side end of the lens assembly is located in the light entrance, and the outer peripheral side of the lens assembly extends toward the image side of the light guide to form a ring shape A flange, the image side surface of the light guide member is sealed and bonded to the object side surface of the annular flange, and the cover plate is sealed to cover the light entrance port.
The camera module according to claim 1, characterized in that, the camera module further comprises a side light-emitting lamp arranged on the outer peripheral side of the light guide member, and the side light-emitting lamp is used for emitting supplementary light and passing through the light guide. The outer peripheral side surface of the light guide member is injected into the light guide member, and then emitted from the light emitting surface to the shooting area.
The camera module according to claim 1, wherein the distance between the object side surface of the lens assembly and the image side surface of the cover plate is 0.05mm˜0.4mm.
The camera module according to claim 1, wherein the camera module further comprises at least one positioning structure arranged on the outer peripheral side of the light guide member, the positioning structure is used for connecting with the limiter in the mobile terminal. The camera module is assembled to the mobile terminal by cooperating with the bit structure.
A mobile terminal, comprising:

The camera module of any one of claims 1-26; and

a casing, the casing is formed with a light passage, the camera module is located in the casing, and the cover plate closes the light passage.