CN107465861B

CN107465861B - Composite cover plate, camera module and mobile terminal

Info

Publication number: CN107465861B
Application number: CN201710880966.2A
Authority: CN
Inventors: 邱泽朔; 姜宇; 彭运辉; 冉可
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-09-26
Filing date: 2017-09-26
Publication date: 2020-09-22
Anticipated expiration: 2037-09-26
Also published as: CN107465861A

Abstract

The invention discloses a composite cover plate, which comprises: the cover plate main body is provided with a first through hole; the fixing ring is at least partially accommodated in the first through hole and contacts and covers the inner wall of the first through hole; the first light-transmitting piece is at least partially accommodated in the fixed ring and provided with a first light incident surface, the first light incident surface is a convex curved surface, and light rays emitted by the flash lamp enter the first light-transmitting piece from the first light incident surface; and the second light-transmitting piece is accommodated in the fixed ring, and light emitted by the flash lamp penetrates through the first light-transmitting piece and then penetrates through the second light-transmitting piece to be emitted. The invention also discloses a camera module and a mobile terminal. The shooting effect of the camera module is improved, the shot pictures and video pictures are real, and the user experience is improved.

Description

Composite cover plate, camera module and mobile terminal

Technical Field

The invention relates to the technical field of camera electronic equipment, in particular to a composite cover plate, a camera module and a mobile terminal.

Background

With the development of society, mobile terminals are becoming more and more important in people's lives, and mobile terminals such as mobile phones and tablet computers have become an indispensable part of people's portability. The camera module is for making the function module of functions such as the mobile terminal realization is shot, is made a video recording, and general camera module includes camera and flash light, and the flash light is used for providing stronger light under the environment that light is more weak to obtain the photographic effect or the effect of making a video recording of preferred.

Among the prior art, for pleasing to the eye camera and flash light, use the transparency that outstanding in the shell to hide camera and flash light, make camera and flash light pass through the transparency and form a whole, the associative perception of reinforcing camera module, but because the flash light is great at the light that the during operation sent, it spreads to the camera position to pierce through the transparency easily to be bright, take place to scurry light promptly, influence the normal work of camera, lead to the shooting effect not good, it is unreal to shoot picture and video picture, influence user experience.

Disclosure of Invention

The invention aims to solve the technical problems that in the prior art, light emitted by a flash lamp during working is mixed, so that the normal work of a camera is influenced, the shooting effect is poor, pictures and video pictures are not real, and the user experience is influenced.

In order to solve the above technical problem, the present invention provides a composite cover plate, including:

the cover plate main body is provided with a first through hole;

the fixing ring is at least partially accommodated in the first through hole and contacts and covers the inner wall of the first through hole;

the first light-transmitting piece is at least partially accommodated in the fixed ring and provided with a first light incident surface, the first light incident surface is a convex curved surface, and light rays emitted by the flash lamp enter the first light-transmitting piece from the first light incident surface;

and the second light-transmitting piece is accommodated in the fixed ring, and light emitted by the flash lamp penetrates through the first light-transmitting piece and then penetrates through the second light-transmitting piece to be emitted.

In one embodiment, the cover plate body includes a first surface and a second surface opposite to each other, the light emitted from the flash lamp propagates from the second surface to the first surface, the fixing ring includes a first end received in the first through hole, and an end surface of the first end is located between the first surface and the second surface.

In one embodiment, the fixing ring further comprises a second end disposed opposite the first end, the second end protruding from the second surface.

In one embodiment, the outer wall of the second end is provided with a stop plate, the size of the stop plate is larger than that of the first through hole, and the stop plate abuts against the second surface.

In one embodiment, the stop plate is attached to the second surface through a light-shielding adhesive.

In one embodiment, the fixing ring is provided with a first clamping groove and a second clamping groove which are arranged at intervals, the first light-transmitting piece is clamped in the first clamping groove, the second light-transmitting piece is clamped in the second clamping groove, and a vacuum cavity is formed between the first light-transmitting piece and the second light-transmitting piece and between the fixing ring and the fixing ring.

In one embodiment, the second light-transmitting member has a second light-emitting surface, the second light-emitting surface is a concave curved surface, and the light emitted by the flash lamp passes through the first light-transmitting member, then passes through the second light-transmitting member, and then exits from the second light-emitting surface.

In one embodiment, the first light-transmitting member further includes a first light-emitting surface facing the second light-transmitting member, and the first light-emitting surface is a convex curved surface.

In one embodiment, the second light-transmitting member further includes a second light-incident surface facing the first light-transmitting member, and the second light-incident surface is a concave curved surface.

In one embodiment, the curved surface shapes of the first light emitting surface and the second light incident surface are the same.

In one embodiment, the first light incident surface protrudes from the fixing ring.

In one embodiment, the cover plate main body is further provided with a second through hole, the second through hole is communicated with the first surface and the second surface, the second through hole is opposite to the camera, the composite cover plate further comprises a third light transmission piece, and the third light transmission piece is contained in the second through hole and used for transmitting light entering the camera.

In one embodiment, the third light-transmitting member includes an end surface facing away from the camera, the end surface being flush with the first surface.

In one embodiment, the composite cover plate further comprises a fourth light-transmitting member, the fourth light-transmitting member is accommodated in the first through hole, the fourth light-transmitting member is located on a side of the second light-transmitting member away from the first light-transmitting member, and a side surface of the fourth light-transmitting member facing the second light-transmitting member is in contact with the first end.

In one embodiment, the fourth light transmissive element includes a top surface facing away from the retaining ring, the top surface being flush with the first surface.

In one embodiment, the retaining ring is made of a light-impermeable, elastomeric material.

The invention also provides a camera module which comprises a camera, a flash lamp and the composite cover plate, wherein the camera and the flash lamp are arranged adjacently, the composite cover plate is covered on one side of the camera and the flash lamp, and the composite cover plate is used for protecting the camera and the flash lamp.

In one embodiment, the flashlight includes a light emitting surface facing the composite cover plate, and the center line of the first through hole passes through the center of the light emitting surface.

In one embodiment, the center of the light emitting surface is located at a focus of the first light incident surface.

The invention also provides a mobile terminal which comprises the camera module.

The invention has the following beneficial effects: the first light transmission piece is a convex lens, after the light emitted by the flash lamp enters the first light transmission piece, the propagation path of the light is changed, the light tends to propagate towards the second light transmission piece, the divergence angle of the light in the fixing ring is smaller, the light efficiency emitted from the inner wall of the first through hole into the cover plate main body is reduced, the light fleeing to the camera is reduced, the normal work of the camera is not influenced by the flash lamp, the second light transmission piece is made of a material with the intensity higher than that of the cover plate main body and the first light transmission piece, the fixing ring is used for protecting the flash lamp, the first light-transmitting piece and the second light-transmitting piece are integrated into a whole, the first through hole is easy to mount or dismount, when the design is fixed ring for the structure of not light tight, fixed ring can also further reduce the scurrying light of flash lamp to the camera, has improved the camera module and has taken the effect, and it is real to take picture and video picture, has improved user experience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other obvious modifications can be obtained by those skilled in the art without creative efforts.

Fig. 1 is an exploded view of a composite cover plate according to an embodiment of the present invention.

Fig. 2 is an assembly view of a camera module with a composite cover plate according to an embodiment of the present invention.

Fig. 3 is an exploded view of a camera module for mounting a composite cover plate according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of a composite cover plate according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a fixing ring according to an embodiment of the invention.

Fig. 6 is a schematic structural diagram of a cover plate main body according to an embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of an implementation manner of a composite cover plate according to an embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view of another embodiment of a composite cover plate according to a first embodiment of the present invention.

Fig. 9 is a schematic diagram of a camera module with a composite cover plate according to an embodiment of the present invention.

Fig. 10 is an exploded view of a composite cover plate according to a second embodiment of the present invention.

Fig. 11 is a schematic cross-sectional view of a composite cover plate according to a second embodiment of the present invention.

Fig. 12 is a schematic diagram of a mobile terminal according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The composite cover plate provided by the embodiment of the invention is applied to a camera module of a mobile terminal, and particularly, the composite cover plate is used for covering and protecting a camera and a flash lamp of the camera module. The mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, and the like. The camera module is used for realizing shooting related functions such as shooting, shooting and the like and is connected with other electronic devices or modules in the mobile terminal to realize other functions in a cooperation mode.

Referring to fig. 1, fig. 2 and fig. 3, a composite cover 300 according to an embodiment of the present invention is protruded from a housing 50 of a mobile terminal 200, where the composite cover 300 includes a cover main body 30, a fixing ring 40, a first light-transmitting member 42 and a second light-transmitting member 44. Specifically referring to fig. 2 and 3, the cover plate main body 30 is fixed on the housing 50, the housing 50 is provided with at least two mounting holes 502, the camera 10 is at least partially inserted into the mounting holes 502 and protrudes out of the housing 50, further, the camera 10 includes a camera lens 102 and a circuit portion 104, the camera lens 102 is used for receiving and recognizing an external optical signal and converting the optical signal into an electrical signal, and the circuit portion 104 is used for processing and transmitting the electrical signal to other electronic modules or electronic devices of the mobile terminal 200, such as a main board. The camera lens 102 is at least partially inserted into the mounting hole 502 and protrudes out of the housing 50, the circuit part 104 is positioned inside the housing 50, and the flash 20 is at least partially inserted into the other mounting hole 502 and protrudes out of the housing 50. The cover main body 30 is mounted on the housing 50 at a side of the housing 50 facing the outside.

Referring to fig. 1, 4 and 6, the cover plate main body 30 covers one side of the camera 10 and the flash 20, specifically, the cover plate main body 30 includes a first surface 302 and a second surface 304, which are oppositely disposed, specifically, the first surface 302 and the second surface 304 are two end surfaces of the cover plate main body 30, wherein, referring to fig. 3, the second surface 304 is attached to the housing 50. The camera 10 and the flash 20 are located on the second surface 304 side of the cover main body 30, i.e., the camera 10 and the flash 20 are located on the side of the housing 50. In this embodiment, the light emitted from the flash 20 travels from the second surface 304 toward the first surface 302. Referring to fig. 6, the cover main body 30 is provided with first through holes 32 communicating with opposite side surfaces of the cover main body 30, and in particular, the first through holes 32 communicate the first surface 302 with the second surface 304. With reference to fig. 4 in particular, the perpendicular projection of the flash 20 on the second surface 304 falls within the range of the first through hole 32, i.e. the flash 20 corresponds to the first through hole 32.

Referring to fig. 1 and 4, in the present embodiment, the camera head 10 further includes a fixing ring 40, a first light-transmitting member 42 and a second light-transmitting member 44, the fixing ring 40 is at least partially accommodated in the first through hole 32, and the fixing ring 40 contacts and covers an inner wall of the first through hole 32. Specifically, referring to fig. 4, at least a portion of the first light-transmitting member 42 is accommodated in the fixing ring 40, the first light-transmitting member 42 has a first light incident surface 422, and the flash 20 is located on a side of the first light incident surface 422 of the first light-transmitting member 42. In one embodiment, the first light-transmitting member 42 is made of a transparent material with strength greater than that of the cover plate main body 30, the first light-transmitting member 42 is wear-resistant and is not prone to scratching, the first light-transmitting member 42 ensures long-term normal use of the flashlight 20, and the use of the first light-transmitting member 42 in combination with the low-cost cover plate main body 30 reduces the cost of the composite cover plate 300. In one embodiment, the shape of the first light-transmitting member 42 is the same as the shape of the fixed ring 40, such that the first light-transmitting member 42 can be mounted in a seamless fit with the fixed ring 40. In one embodiment, the fixing ring 40 is made of an elastic material, such as rubber, to provide a sealing and waterproof function, and prevent water or impurities from entering the interior of the housing 50 through the installation gap between the first light-transmitting member 42 and the fixing ring 40, thereby affecting the operation of the flashlight 20 and even damaging the flashlight 20.

Referring to fig. 4, the first light incident surface 422 is a surface of the first light transmissive member 42 facing the flash 20, and is used for absorbing light rays of the flash 20 entering the first light transmissive member 42. The first light incident surface 422 is a convex curved surface, and the light emitted by the flash 20 enters the first light transmissive element 42 through the first light incident surface 422. The first light incident surface 422 changes the propagation path of the light emitted from the flash 20. Specifically, the first light incident surface 422 may be a spherical surface or an aspheric surface. First printing opacity piece 42 is convex lens, the light that flash light 20 sent gets into behind first printing opacity piece 42, the propagation path of light is changed, light trend outwards propagates from first through-hole 32, light divergence angle in first through-hole 32 is less, the light efficiency that jets out to apron main part 30 in from the inner wall of first through-hole 32 reduces, reduce scurrying light to camera 10, flash light 20 does not influence camera 10's normal work, be favorable to camera 10 to shoot the image, the camera module 100 shooting effect has been improved, it is true to shoot picture and video picture, user experience has been improved.

Referring to fig. 1 and 4, in the present embodiment, the camera head 10 further includes a second light-transmitting member 44, specifically, referring to fig. 4, the second light-transmitting member 44 is accommodated in the fixing ring 40, and the light emitted by the flash 20 passes through the first light-transmitting member 42 and then passes through the second light-transmitting member 44 to be emitted. In one embodiment, the second light-transmitting member 44 is provided with a second light-emitting surface 444, and the second light-emitting surface 444 faces the outside of the housing of the mobile terminal 200. In one embodiment, the second light-transmitting member 44 is made of a transparent material with a strength greater than that of the cover plate main body 30, the second light-transmitting member 44 is wear-resistant and is not prone to scratching, the second light-transmitting member 44 ensures long-term normal use of the flashlight 20, and the use of the second light-transmitting member 44 in combination with the low-cost cover plate main body 30 reduces the cost of the composite cover plate 300. In one embodiment, second light-transmitting member 44 has a shape that is identical to that of retaining ring 40, such that second light-transmitting member 44 can be mounted in a seamless fit with retaining ring 40. In one embodiment, the fixing ring 40 is made of an elastic material, such as rubber, to provide a sealing and waterproof function, and prevent water or impurities from entering the inside of the housing 50 through the installation gap between the second light-transmitting member 44 and the first through hole 32, thereby affecting the operation of the flash lamp 20 and even damaging the flash lamp 20.

Specifically referring to fig. 4, the second light-emitting surface 444 is a surface of the second light-transmitting member 44 facing away from the flash 20 and facing the outside, and is used for emitting the light emitted from the flash 20. The second light-emitting surface 444 is a concave curved surface, and the light emitted by the flash 20 passes through the first light-transmitting member 42, enters the second light-transmitting member 44, and exits the second light-transmitting member 44 through the second light-emitting surface 444. The second light-emitting surface 444 changes a propagation path of the light emitted from the flash 20. Specifically, the second light emitting surface 444 may be a spherical surface or an aspheric surface. Second printing opacity piece 44 is concave lens, and when light jetted out from second printing opacity piece 44, the angle increase of dispersing of light, the area covered of flash light 20 light increases, is favorable to camera 10 to shoot the image, has improved camera module 100 and has shot the effect, and it is true to shoot picture and video picture, has improved user experience.

First printing opacity piece 42 is convex lens, the light that flash light 20 sent gets into behind first printing opacity piece 42, the propagation path of light is changed, light tends to propagate towards second printing opacity piece 44, light divergence angle in first through-hole 32 is less, the light efficiency that jets out to apron main part 30 in from the inner wall of first through-hole 32 reduces, reduce scurrying light to camera 10, flash light 20 does not influence the normal work of camera 10, second printing opacity piece 44 is concave lens, when light jets out from second printing opacity piece 44, the angle increase of divergence of light, the coverage area increase of flash light 20 light, be favorable to camera 10 to shoot the image, camera module 100 shooting effect has been improved, it is real to shoot picture and video picture, user experience has been improved.

In one embodiment, the second light-transmitting member 44 is made of a material having a greater strength than the first light-transmitting member 42, or the first light-transmitting member 42 and the cover body 30 are made of the same material, and the second light-transmitting member 44 is made of a material having a greater strength than the first light-transmitting member 42 and the cover body 30. The second light transmission piece 44 is closer to the outside of the shell than the first light transmission piece 42, the second light transmission piece 44 is in more contact with the outside, the second light transmission piece 44 is made of a transparent material with higher strength, the second light transmission piece 44 is wear-resistant and not prone to scratching, the second light transmission piece 44 ensures long-time normal use of the flash lamp 20, and the second light transmission piece 44 is combined with the first light transmission piece 42 with low cost and the cover plate main body 30 to reduce the cost of the composite cover plate 300.

Referring to fig. 4 and 5, in the present embodiment, the fixing ring 40 includes a first end 402 received in the first through hole 32, and an end surface (a first end surface 402a) of the first end 402 is located between the first surface 302 and the second surface 304. Specifically, the first end face 402a is located between the first surface 302 and the second surface 304, that is, the first end face 402a is located in the first through hole 32, the horizontal position of the first end face 402a is lower than the first surface 302, and the first end face 402a does not protrude from the first surface 302, on one hand, the first end face 402a is received in the first through hole 32, which can prevent the edge of the first end face 402a from scratching a user, and on the other hand, the edge of the first end face 402a is prevented from being worn to affect the structural stability of the camera module 100 and the overall aesthetic appearance of the composite cover plate 300.

Referring to fig. 4 and 5, in the present embodiment, the fixing ring 40 further includes a second end 404 disposed opposite to the first end 402, and the second end 404 protrudes from the second surface 304. The second end 404 protrudes out of the cover body 30 to allow the fixing ring 40 to be easily pulled out of or plugged into the first through hole 32, meanwhile, the second end 404 is located inside the housing of the mobile terminal 200 and cannot be directly observed by a user, and the second end 404 protruding out of the second surface 304 does not affect the overall aesthetic property of the composite cover 300.

With continued reference to fig. 4 and 5, in the present embodiment, the outer wall of the second end 404 is provided with a stop plate 406, the size of the stop plate 406 is larger than the size of the first through hole 32, and the stop plate 406 abuts against the second surface 304. Specifically, the stop plate 406 is used for determining the depth of the fixing ring 40 inserted into the first through hole 32, so as to prevent the fixing ring 40 from being difficult to be pulled out from the first through hole 32 due to the excessive depth of the fixing ring 40 inserted into the first through hole 32, and prevent the fixing ring 40 from protruding from the first surface 302 to affect the overall gloss of the composite cover plate 300.

In one embodiment, the stop plate 406 is attached to the second surface 304 by a light-shielding adhesive. Specifically, the surface (shown surface 406a) of the stop plate 406 facing the second surface 304 is attached to the second surface 304 by the light-shielding adhesive, which firmly fixes the stop plate 406 to the second surface 304, so that the fixing ring 40 is fixed in the first through hole 32; on the other hand, the light-shielding glue is opaque, so that light emitted by the flash lamp 20 cannot enter the cover main body 30 from the second surface 304 at a position around the first through hole 32, and further, the occurrence of light leakage is avoided.

Referring to fig. 4 and 5, in one embodiment, the fixing ring 40 has a first engaging groove 40a and a second engaging groove 40b arranged at intervals, the first light-transmitting element 42 is engaged with the first engaging groove 40a, the second light-transmitting element 44 is engaged with the second engaging groove 40b, and a vacuum cavity is formed between the first light-transmitting element 42, the second light-transmitting element 44 and the fixing ring 40. Light does not have the loss under vacuum environment, and the cavity passes the energy loss reduction of compound apron 300 with the light that sends of flashing, improves the utilization ratio of flash light 20 light, and the effectual consumption that reduces flash light 20 light has improved camera module 100 and has lasted the length of time of shooing, has improved mobile terminal 200's time of endurance, has further optimized user experience. Meanwhile, compared with a vacuum cavity, the color of the light of the flash lamp 20 is changed slightly by the lens, so that the image shot by the camera module 100 is more real.

Specifically, as shown in fig. 5, the inner wall of the fixing ring 40 is provided with a first boss 4002, a second boss 4004 and a third boss 4006, wherein the first boss 4002 is located between the second boss 4004 and the third boss 4006. A first clamping groove 40a is formed between the first boss 4002 and the second boss 4004, and a second clamping groove 40b is formed between the first boss 4002 and the third boss 4006. Referring to fig. 4, the first boss 4002 contacts the first light emitting surface 424 of the first light transmissive member 42, the second boss 4004 contacts the first light incident surface 422 of the first light transmissive member 42, and the first light transmissive member 42 is stably fixed in the first engaging groove 40a under the squeezing action of the first boss 4002 and the second boss 4004. In one embodiment, the first boss 4002 and the second boss 4004 or the entire fixing ring 40 are made of an elastic material, so that the first light transmissive member 42 can be conveniently mounted in the first engaging groove 40a, and the first boss 4002 and the second boss 4004 have less wear to the surfaces (the first light incident surface 422 and the first light emitting surface 424) of the first light transmissive member 42. The third boss 4006 contacts the second light emitting surface 444 of the second light transmissive member 44, the first boss 4002 contacts the second light incident surface 442 of the second light transmissive member 44, and the second light transmissive member 44 is stably fixed in the second engaging groove 40b under the squeezing action of the first boss 4002 and the third boss 4006. In one embodiment, the first boss 4002 and the third boss 4006 or the entire fixing ring 40 are made of an elastic material, so that the second light transmissive member 44 can be conveniently mounted in the second engaging groove 40b, and the first boss 4002 and the third boss 4006 have less wear on the surfaces (the second light incident surface 442 and the second light emitting surface 444) of the second light transmissive member 44. Further, the first boss 4002 is located between the second boss 4004 and the third boss 4006, or it is understood that the first boss 4002 is located between the first light transmission member 42 and the second light transmission member 44, and the pressing of the first boss 4002 by the first light transmission member 42 and the pressing of the first boss 4002 by the second light transmission member 44 are balanced with each other, so that the stability of fixing the first light transmission member 42 and the second light transmission member 44 in the fixing ring 40 is enhanced.

Referring to fig. 4, the first light transmissive element 42 further includes a first light emitting surface 424 facing the second light transmissive element 44, and the first light emitting surface 424 is a convex curved surface. The first light-transmitting member 42 is a convex lens with two opposite surfaces (the first light incident surface 422 and the first light emitting surface 424) being convex surfaces, and the first light-transmitting member 42 has a better effect of changing the light path of the light of the flash 20. Further, the second light transmissive element 44 further includes a second light incident surface 442 facing the first light transmissive element 42, and the second light incident surface 442 is a concave curved surface. In one embodiment, when the flash 20 is located at the focus of the first light incident surface 422, the light emitted from the first light emitting surface 424 to the second light incident surface 442 of the flash 20 is parallel to the inner wall of the first through hole 32, and the divergence angle of the light emitted from the second light emitting surface 444 is related to the focus of the second light transmitting member 44, which is easier to control.

In one embodiment, the curved surfaces of the first light emitting surface 424 and the second light incident surface 442 are the same. Specifically, referring to fig. 9, the light emitted from the first light emitting surface 424 directly enters the second light incident surface 442, and the curved surfaces of the first light emitting surface 424 and the second light incident surface 442 have the same shape, so that the propagation direction of the light is not changed during the transition from the first light transmitting member 42 to the second light transmitting member 44, thereby reducing the occurrence of light deviation to the fixed ring 40, reducing the occurrence of light channeling, and improving the shooting effect of the camera module 100.

Referring to fig. 4, in an embodiment, the first light incident surface 422 protrudes out of the fixing ring 40 to reduce a distance between the first light incident surface 422 and the flash 20, and all light rays emitted by the flash 20 are absorbed in the first light transmitting member 42 through the first light incident surface 422, and meanwhile, the second surface 304 is located inside the housing of the mobile terminal 200 and cannot be directly observed by a user, and the light incident surface protruding out of the second surface 304 does not affect the overall aesthetic property of the composite cover plate 300.

Referring to fig. 1, 4 and 6, in the present embodiment, the cover plate main body 30 further includes a second through hole 34 communicating the first surface 302 and the second surface 304, specifically referring to fig. 4, a vertical projection of the camera 10 on the second surface 304 falls within a range of the second through hole 34, that is, the camera 10 corresponds to the second through hole 34. In one embodiment, the second through hole 34 is aligned with the camera 10. The composite cover plate 300 further includes a third light-transmitting member 46, the third light-transmitting member 46 is received in the second through hole 34, and the third light-transmitting member 46 is used for protecting the camera 10. In one embodiment, the second through hole 34 is a circular through hole, but in other embodiments, the second through hole 34 may be a through hole with other shapes, such as a rectangular shape, a tapered shape, and the like. In this embodiment, the second through hole 34 does not intersect with the first through hole 32, so that the light path of the flash 20 and the light path of the camera 10 are separated, and mutual influence is avoided. The third light-transmitting member 46 is accommodated in the second through hole 34, the third light-transmitting member 46 is used for protecting the camera 10, specifically, the third light-transmitting member 46 is made of a transparent material with strength greater than that of the cover plate main body 30, the third light-transmitting member 46 is wear-resistant and not prone to scratching, the third light-transmitting member 46 ensures long-time normal use of the camera 10, and the third light-transmitting member 46 is combined with the low-cost cover plate main body 30 to be used, so that the cost of the composite cover plate 300 is reduced. In one embodiment, the third light-transmitting member 46 has the same shape as the second through hole 34, so that the third light-transmitting member 46 can be installed in a seamless fit with the second through hole 34, and further, a sealing ring (not shown) is further disposed between the third light-transmitting member 46 and the second through hole 34 to perform a sealing and waterproof function, so as to prevent water or impurities from entering the second through hole 34 from a mounting gap between the third light-transmitting member 46 and the second through hole 34 to affect the operation of the camera 10, or even damage the camera 10.

As shown in fig. 4, in the present embodiment, the third light-transmitting member 46 includes an end surface 46a facing away from the camera head 10, and the end surface 46a is flush with the first surface 302. Specifically, the thickness of the third light-transmitting member 46 is the same as the depth of the second through hole 34, that is, after the third light-transmitting member 46 is placed in the second through hole 34, a side surface of the third light-transmitting member 46 is flush with the first surface 302, so that the whole first surface 302 of the cover plate main body 30 is a continuous and flat surface, the part of the composite cover plate 300 exposed outside the housing 50 is a flat whole, the overall aesthetic effect of the composite cover plate 300 is improved, and the user experience is enhanced.

Referring to fig. 7, in one embodiment, the inner wall (the second inner wall 340) of the second through hole 34 is provided with a first light shielding layer 52 for blocking light emitted from the flash 20 from entering the cover main body 30 and then propagating into the second through hole 34. In one embodiment, the first light shielding layer 52 is a black ink layer coated on the second inner wall 340, and the black ink layer can achieve a good light absorption effect. Further, the method of coating the first light shielding layer 52 is simple and convenient, the first light shielding layer 52 is attached to the second inner wall 340, no gap exists between the first light shielding layer 52 and the second inner wall 340, most of light emitted by the flash lamp 20 is emitted from the first through hole 32, a small part of light enters the cover plate main body 30 and then propagates to the second inner wall 340, and enters the second through hole 34 through the second inner wall 340, and is directly absorbed by the first light shielding layer 52 in the process of propagating to the second through hole 34, so that the influence of the flash lamp 20 on the camera 10 is further avoided, the shooting effect of the camera module 100 is improved, the shot picture and the video picture are real, and the user experience is improved. Meanwhile, the light blocking effect of the black ink layer can be improved by increasing the thickness of the black ink layer, and the influence of the flash lamp 20 on the camera 10 is avoided.

Referring to fig. 8, in one embodiment, the second surface 304 of the composite cover plate 300 is provided with a second light shielding layer 54 for blocking the light emitted from the flash lamp 20 from propagating out of the second surface 304. Specifically, the second light shielding layer 54 covers the second surface 304 except for the positions corresponding to the first through hole 32 and the second through hole 34, so that on one hand, the light emitted by the flash lamp 20 can be prevented from being emitted into the cover plate main body 30 from the second surface 304, on the other hand, the influence on the shooting of the camera 10 caused by the leakage of part of the light in the cover plate main body 30 from the second surface 304 can be avoided, the shooting effect of the camera module 100 is improved, the shot pictures and video pictures are real, and the user experience is improved.

In one embodiment, the fixing ring 40 is fixed in the first through hole 32 by interference fit, and in other embodiments, the fixing ring 40 is adhered in the first through hole 32 by adhesive. The interference connection mode makes fixed ring 40 connect closely in first through-hole 32 to be difficult for droing, do not have the gap between fixed ring 40 and the first through-hole 32, prevent that steam, ash layer from getting into. In one embodiment, the first light-transmitting member 42 is fixed in the fixing ring 40 by interference fit, and in other embodiments, the first light-transmitting member 42 is adhered in the fixing ring 40 by glue. The interference connection mode makes first printing opacity piece 42 connect closely in solid fixed ring 40 to be difficult for droing, do not have the gap between first printing opacity piece 42 and the solid fixed ring 40, prevent that steam, ash layer from getting into. In one embodiment, the second light-transmitting member 44 is fixed in the fixing ring 40 by interference fit, and in other embodiments, the second light-transmitting member 44 is adhered in the fixing ring 40 by glue. The interference connection mode enables the second light-transmitting member 44 to be tightly connected in the second through hole 34 and not to easily fall off, and no gap exists between the second light-transmitting member 44 and the fixing ring 40, so that water vapor and ash layers are prevented from entering. In one embodiment, the third light-transmitting member 46 is fixed in the second through hole 34 by interference fit, and in other embodiments, the third light-transmitting member 46 is adhered in the second through hole 34 by adhesive. The interference connection mode enables the third light-transmitting member 46 to be tightly connected in the second through hole 34 and not to easily fall off, and no gap exists between the third light-transmitting member 46 and the second through hole 34, so that water vapor and an ash layer are prevented from entering.

First light transmission member 42 is convex lens, the light that flash light 20 sent gets into first light transmission member 42 after, the propagation path of light is changed, light tends to propagate towards second light transmission member 44, the angle of divergence of light in solid fixed ring 40 is less, the light efficiency that jets out to the apron main part 30 in from the inner wall of first through-hole 32 reduces, reduce scurrying to camera 10, flash light 20 does not influence the normal work of camera 10, second light transmission member 44 is that intensity is greater than the material of apron main part 30 and first light transmission member 42 and makes, a whole is constituteed with first light transmission member 42 and second light transmission member 44 to protection flash light 20, gu fixed ring 40, easily when first through-hole 32 is installed or is dismantled. In one embodiment, the fixing ring 40 is made of an opaque elastic material, and when the fixing ring 40 is designed to be an opaque structure, the fixing ring 40 can further reduce the light fleeing of the flash lamp 20 to the camera 10, so that the shooting effect of the camera module 100 is improved, the shot pictures and video pictures are real, and the user experience is improved.

Referring to fig. 10 and 11, the composite cover plate 300 according to the second embodiment of the present invention further includes a fourth light-transmitting member 48, the fourth light-transmitting member 48 is accommodated in the first through hole 32, and the fourth light-transmitting member 48 is located on a side of the second light-transmitting member 44 away from the first light-transmitting member 42. The fourth light-transmitting member 48 is received in the first through hole 32, and the fourth light-transmitting member 48 is used for further protecting the flashlight 20. With particular reference to fig. 11, the fourth light-transmitting member 48 is disposed adjacent to the fixing ring 40, and both the fourth light-transmitting member 48 and the fixing ring 40 are received in the first through hole 32. In one embodiment, the first through hole 32 is a circular through hole, but in other embodiments, the first through hole 32 may be a through hole having other shapes, such as a rectangular shape, a tapered shape, and the like. Specifically, the fourth light transmission member 48 is made of a transparent material with strength greater than that of the cover plate main body 30, the fourth light transmission member 48 is wear-resistant and is not prone to scratching, the fourth light transmission member 48 ensures long-time normal use of the camera 10, and the fourth light transmission member 48 is combined with the low-cost cover plate main body 30 to reduce the cost of the composite cover plate 300. In one embodiment, the shape of the fourth light-transmitting member 48 is the same as the shape of the first through hole 32, so that the fourth light-transmitting member 48 can be installed in a seamless fit with the first through hole 32, and further, a sealing ring (not shown in the figure) is further disposed between the fourth light-transmitting member 48 and the first through hole 32 to perform sealing and waterproof functions, so as to prevent water or impurities from entering the first through hole 32 from a mounting gap between the fourth light-transmitting member 48 and the first through hole 32 to affect the operation of the camera 10, or even damage the camera 10.

Referring to fig. 11, in the present embodiment, the fourth light-transmitting member 48 includes a bottom surface 48b facing the second light-transmitting member 44, and the bottom surface 48b contacts the first end 402. Specifically, the first end surface 402a abuts against the fourth light-transmitting member 48, so that no gap exists between the fourth light-transmitting member 48 and the fixing ring 40, and all the light rays of the flash 20 passing through the fixing ring 40 enter the fourth light-transmitting member 48 and pass through the fourth light-transmitting member 48 to be emitted, thereby improving the utilization rate of the light rays of the flash 20. In one embodiment, the end surfaces of the fourth light-transmitting member 48 are flat, and the fourth light-transmitting member 48 covers the first light-transmitting member 42, thereby further enhancing the protection of the composite cover 300 for the flashlight 20.

Referring to fig. 11, in one embodiment, a sealed cavity is formed between the second light-emitting surface 444 and the fourth light-transmitting element 48, and the cavity is vacuum. Because the second light-emitting surface 444 is an inwardly concave curved surface, the end surface of the fourth light-transmitting member 48 is a plane, and a cavity is formed between the second light-emitting surface 444 and the fourth light-transmitting member 48, in the process of manufacturing the composite cover plate 300, the space between the second light-emitting surface 444 and the fourth light-transmitting member 48 is designed to be vacuum, so that the loss of the light of the flash lamp 20 during propagation in the cavity can be reduced, the utilization rate of the light of the flash lamp 20 is improved, the energy consumption is saved, and the shooting effect of the camera module 100 is improved.

With continued reference to fig. 11, the fourth light-transmitting element 48 further includes a top surface 48a facing away from the fixing ring 40, and the top surface 48a is flush with the first surface 302. Specifically, the fourth light-transmitting member 48 may be a sheet-shaped light-transmitting member, so that the first surface 302 of the cover plate main body 30 is a flat surface, and the cover plate main body 30 does not show a pit at the position of the first through hole 32 to affect the overall beauty of the composite cover plate 300.

The embodiment of the present invention further provides a camera module 100, the structure of the camera module 100 is shown in fig. 3 and fig. 4, the camera module 100 includes a camera 10, a flash 20 and a composite cover 300 according to the embodiment of the present invention, the camera 10 is located on one side of the second surface 304 of the cover body 30, the flash 20 is at least partially accommodated in the first through hole 32, and the composite cover 300 is used for protecting the camera 10 and the flash 20.

Specifically, referring to fig. 3, the cover member further includes a fixing frame 60, and the fixing frame 60 fixes the cover main body 30 to the housing 50 through an edge of the cover main body 30. Specifically, the fixing frame 60 is sleeved outside the cover plate main body 30, and the edge of the cover plate main body 30 is fixed on the housing 50, so that the second surface 304 of the cover plate main body 30 is attached to the housing 50, and the first surface 302 is exposed outside the housing 50. The fixed frame 60 does not shield the first surface 302, and maintains the integrity of the first surface 302, so as to improve the user experience, and further, the cover plate main body 30 is fixed from the frame of the cover plate main body 30, so that the cover plate main body 30 made of fragile glass is prevented from being fixed in a punching mode and the like, and is fixed firmly.

As shown in fig. 4, in one embodiment, the flash 20 includes a light emitting surface 202 facing the composite cover 300, and a center line of the first through hole 32 passes through a center of the light emitting surface 202. Specifically, the light emitting surface 202 of the flash 20 is opposite, the optical paths of the light rays emitted from the light emitting surface 202 and transmitted to the reflecting surface are the same, and the light rays are uniformly distributed after being reflected by the reflecting surface, which is beneficial to improving the shooting effect of the camera module 100.

In one embodiment, the center of the light emitting surface 202 is located at the focus of the first light incident surface 422. Referring to fig. 9, the light emitted from the light emitting surface 202 of the flash 20 firstly enters the first light transmissive element 42 through the first light incident surface 422, and since the light emitting surface 202 is located at the focus of the first light incident surface 422, the light emitted from the light emitting surface 202 enters the first light transmissive element 42 and then propagates in a direction parallel to the thickness direction of the cover main body 30, the light propagates to the second light transmissive element 44 and is emitted from the second light emitting surface 444, the light is diffused, and the change of the propagation path of the light in the fourth light transmissive element 48 is negligible. The light entering the first light incident surface 422 is emitted to the second light emitting surface 444, and no light is emitted from the inner wall of the first through hole 32 and transmitted to the second through hole 34 to affect the shooting of the camera 10; the divergence angle of the light emitted from the second light-emitting surface 444 is increased, the coverage angle of the light of the flash 20 is increased, and the shooting effect of the camera module 100 is improved.

Further, the camera module 100 according to the embodiment of the present invention further includes a circuit board, and the circuit board is electrically connected to the flash 20 to control the flash 20 to operate.

Referring to fig. 12, an embodiment of the present invention further provides a mobile terminal 200, where the mobile terminal 200 refers to a computer device that can be used in mobile, including but not limited to a mobile phone, a notebook, a tablet computer, a POS machine, a vehicle-mounted computer, a camera, and the like. The mobile terminal 200 provided by the embodiment of the present invention includes the camera module 100 described above. Further, the mobile terminal 200 further includes functional components such as a main board and a display module.

While the invention has been described with reference to a number of illustrative embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A composite decking, comprising:

the cover plate main body is provided with a first through hole;

the first light-transmitting piece is at least partially accommodated in the fixing ring and fixed on the fixing ring, the first light-transmitting piece is provided with a first light-incoming surface, the first light-incoming surface is a convex curved surface, and light rays emitted by the flash lamp enter the first light-transmitting piece from the first light-incoming surface;

the second light-transmitting piece is accommodated in the fixed ring and fixed on the fixed ring, and light emitted by the flash lamp penetrates through the first light-transmitting piece and then penetrates through the second light-transmitting piece to be emitted;

and a vacuum cavity is formed among the first light-transmitting piece, the second light-transmitting piece and the fixing ring.

2. The composite cover plate of claim 1, wherein the cover plate body includes a first surface and a second surface opposite to each other, the light emitted from the flashlight propagates from the second surface toward the first surface, the fixing ring includes a first end received in the first through hole, and an end surface of the first end is located between the first surface and the second surface.

3. The composite cover plate of claim 2, wherein the retaining ring further includes a second end disposed opposite the first end, the second end protruding from the second surface.

4. The composite cover plate of claim 3, wherein the outer wall of the second end is provided with a stop plate having a size larger than the first through hole, the stop plate abutting the second surface.

5. The composite cover sheet of claim 4 wherein the stop sheet is attached to the second surface by a light blocking glue.

6. The composite cover plate of claim 2, wherein the fixing ring has a first engaging groove and a second engaging groove spaced apart from each other, the first light-transmitting member is engaged with the first engaging groove, and the second light-transmitting member is engaged with the second engaging groove.

7. The composite cover plate of claim 1, wherein the second light-transmitting member has a second light-emitting surface, the second light-emitting surface is a concave curved surface, and the light emitted by the flash lamp passes through the first light-transmitting member, then passes through the second light-transmitting member, and then exits from the second light-emitting surface.

8. The composite cover plate of claim 7, wherein the first light-transmitting member further comprises a first light-emitting surface facing the second light-transmitting member, and the first light-emitting surface is a convex curved surface.

9. The composite cover sheet of claim 8, wherein the second light transmissive element further comprises a second light incident surface facing the first light transmissive element, the second light incident surface being a concave curved surface.

10. The composite cover plate of claim 9, wherein the curved surface of the first light emitting surface and the curved surface of the second light incident surface are the same.

11. The composite cover plate of claim 1, wherein the first light incident surface protrudes from the retaining ring.

12. The composite cover plate of claim 2, wherein the cover plate body further comprises a second through hole, the second through hole communicates the first surface with the second surface, the second through hole faces the camera, and the composite cover plate further comprises a third light-transmitting member, the third light-transmitting member is received in the second through hole and is used for transmitting light entering the camera.

13. The composite cover sheet of claim 12 wherein the third light-transmitting element includes an end surface facing away from the camera head, the end surface being flush with the first surface.

14. The composite cover plate of claim 2, further comprising a fourth light-transmitting member received in the first through hole and positioned on a side of the second light-transmitting member facing away from the first light-transmitting member, wherein a side surface of the fourth light-transmitting member facing the second light-transmitting member is in contact with the first end.

15. The composite cover sheet of claim 14 wherein the fourth light-transmitting member includes a top surface facing away from the retaining ring, the top surface being flush with the first surface.

16. The composite cover plate of any one of claims 1 to 15, wherein the securing ring is made of a light-impermeable, resilient material.

17. A camera module, comprising a camera, a flash lamp and the composite cover plate of any one of claims 1 to 16, wherein the camera and the flash lamp are disposed adjacent to each other, the composite cover plate is disposed on one side of the camera and the flash lamp, and the composite cover plate is used for protecting the camera and the flash lamp.

18. The camera module of claim 17, wherein the flash includes a light emitting surface facing the composite cover plate, and a center line of the first through hole passes through a center of the light emitting surface.

19. The camera module of claim 18, wherein a center of the light emitting surface is located at a focus of the first light incident surface.

20. A mobile terminal, characterized in that it comprises a camera module according to any one of claims 17 to 19.