CN107635090B - Flash lamp lens, camera shooting assembly and terminal equipment - Google Patents

Abstract

The invention provides a flash lamp lens which comprises a light incident surface, a light emergent surface and an inclined side surface, wherein the light incident surface and the light emergent surface are arranged oppositely, the inclined side surface is connected with the light incident surface or the light emergent surface and forms an included angle with a normal of the light emergent surface, and the orthographic projection of the inclined side surface on the light emergent surface is positioned at the periphery of the light emergent surface; and a light absorption layer is arranged on the inclined side surface. The invention provides a camera shooting assembly with the flash lamp lens and terminal equipment with the camera shooting assembly. According to the scheme of the invention, the appearance effect of the double cameras can be created through the design of 'imitating double cameras', so that the visual experience of a user is met at extremely low cost, and the product grade is improved.

Description

Flash Lenses, Camera Components and Terminal Equipment

technical field

The present invention relates to the technical field of electronic products, and in particular, to a flash lens, a camera assembly with the flash lens, and a terminal device with the camera assembly.

Background technique

Some mobile phones on the market have been equipped with dual cameras. The design of dual cameras has more distinct and unique visual effects, which improves the product quality, but requires an additional camera module. This has resulted in a substantial increase in the cost of the product.

SUMMARY OF THE INVENTION

The present invention provides a flash lens, a camera assembly, and a terminal device, which can create the appearance effect of dual cameras through a "fake dual camera" design, thereby satisfying users' visual experience at extremely low cost and improving product quality.

A flash lens includes a light incident surface, a light exit surface and an inclined side surface, the light incident surface and the light exit surface are arranged opposite to the light exit surface, the inclined side surface is connected with the light entrance surface or the light exit surface, and is connected with the light exit surface. The normal line of the light emitting surface is arranged at an included angle, the orthographic projection of the inclined side surface on the light emitting surface is located on the periphery of the light emitting surface; and a light absorbing layer is arranged on the inclined side surface.

A camera assembly includes a camera module, the camera module includes a camera and a camera lens, the camera lens is used to transmit light entering the camera, and the camera assembly also includes a camera module. A flash unit arranged adjacently; the flash unit includes a flash and the above-mentioned flash lens, the flash lens is used to transmit the light emitted by the flash, and the light absorbing layer is used to absorb the light to make the inclined side surface appear The same color as the light incident end face of the camera.

A terminal device, comprising a casing, the casing is provided with a window; the terminal device further comprises the above-mentioned camera assembly, the camera and the flash are both arranged in the casing, the frame Both the transparent cover and the transparent cover are accommodated in the opening.

According to the solution of the present invention, by arranging the light absorbing layer on the inclined side surface, the inclined side surface exhibits a black texture due to absorbing light; and when the human eye looks at the flashing lens, the black inclined side surface is located at The periphery of the light emitting surface thus gives the user a feeling similar to looking at a lens. The design of disposing a light-absorbing layer on the inclined side of the flash can create a dual-camera experience through a "fake dual-camera" design, which is easy to implement without significantly increasing costs.

Description of drawings

In order to illustrate the structural features and effects of the present invention more clearly, the following detailed description will be given in conjunction with the accompanying drawings and specific embodiments.

1 is a schematic cross-sectional structure diagram of a camera lens according to a first embodiment of the present invention;

2 is a schematic cross-sectional structure diagram of a camera lens according to a second embodiment of the present invention;

3 is a schematic cross-sectional structure diagram of a camera lens according to a third embodiment of the present invention;

4 is a schematic cross-sectional structure diagram of a camera lens according to a fourth embodiment of the present invention;

5 is a schematic diagram of an assembly structure of a camera assembly according to an embodiment of the present invention;

Fig. 6 is the exploded structure schematic diagram of the camera assembly shown in Fig. 5;

7 is a schematic diagram of the overall structure of a terminal device according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an exploded structure of a terminal device according to another embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a flash lens, which is used to transmit light emitted by a flash. The flash lens includes a light incident surface, a light exit surface and an inclined side surface, the light incident surface is arranged opposite to the light exit surface, and the inclined side surface is connected with the light entrance surface or the light exit surface, and is connected with the light exit surface. The normal line of the surface is arranged at an included angle, the projection of the inclined side surface on the light-emitting surface is located on the periphery of the light-emitting surface; the inclined side surface is provided with a light absorbing layer.

Wherein, the light incident surface is used to receive the light of the flash, the light exit surface is used to emit the light of the flash, the light incident surface and the light exit surface may be parallel surfaces, the light incident surface and the The light-emitting surface can be substantially perpendicular to the line of sight of the human eye. The inclined side is located on the side of the flash lens, and the inclined side may be the inner side or the outer side of the flash lens, the inner side and the outer side and the light exit surface (or the light incident surface). surface) at an intersection angle, and the projection of the inclined side surface on the light-emitting surface is located at the periphery of the light-emitting surface. The light absorbing layer is used for absorbing light, so that the inclined side surface presents a black texture due to no reflection and refraction.

Usually, the perimeter of the lens seen by the human eye appears black because the perimeter of the light-incident end of the camera is provided with a black material, such as black plastic. The camera lens above the camera is transparent, so the human eye can see the camera with a black texture on the periphery through the camera lens. In this embodiment, the light absorbing layer is arranged on the inclined side surface, so that the inclined side surface has a black texture due to absorbing light; and when the human eye looks at the flash lens, the black inclined side surface is located at the The periphery of the light emitting surface thus gives the user a feeling similar to looking at a lens. This design of setting the light-absorbing layer on the inclined side of the flash does not require a significant increase in cost and is very easy to implement, but it can create a dual-camera experience through the "fake dual-camera" design.

The flash lens according to the embodiment of the present invention will be described in detail below with reference to the specific drawings.

As shown in FIG. 1 , the flash lens 10 according to the first embodiment of the present invention includes a light incident surface 15 , a light exit surface 11 and an inclined side surface 14 . The light incident surface 15 is arranged opposite to the light exit surface 11 , the inclined side surface 14 is connected to the light incident surface 15 , and is arranged at an angle with the normal of the light exit surface 11 , and the projection of the inclined side surface 14 on the light exit surface 11 is located on the light exit surface 11 . perimeter. A light absorbing layer is provided on the inclined side surface 14 (the black shaded part in FIG. 1 ). The flash lens 10 further includes a first surface 12 and a second surface 13. The light exit surface 11, the first surface 12, the second surface 13, the inclined side surface 14, and the light incident surface 15 are connected in sequence, and the first surface 12 is perpendicular to the light exit surface. 11. The second surface 13 is parallel to the light emitting surface 11. The second surface 13 is also provided with the light absorbing layer (the black shaded part in FIG. 1).

In the first embodiment, the flash lens 10 is in the shape of a "big head", that is, the light-emitting surface 11 , the first surface 12 and the second surface 13 form a boss, and the radial dimension of the boss is larger than that of the inclined side 14 and the entrance. The radial dimension of the area formed by the smooth surface 15. Such a "big head" type flash lens 10 is used to mount on a body (eg, a housing or other bearing member on the housing) from the outside. When the human eye looks at the light emitting surface 11 of the flash lens 10, since both the inclined side surface 14 and the second surface 13 fall within the main visual field of the human eye, the light absorbing surface 14 and the second surface 13 are both provided with the light absorption layer so that both appear black, giving the user a viewing experience looking at the camera. The first surface 12 is not in the main field of view of the human eye, so the light absorbing layer may not be provided thereon. Of course, in other embodiments, in order to ensure a person's viewing experience under various viewing angles, the light absorbing layer may also be provided on the first surface 12 .

In addition, in the first embodiment, when the flash lens 10 is mounted on the main body, both the first surface 12 and the second surface 13 are in contact with the inner wall of the main body. The inclined side surface 14 can fit with the inner wall of the main body, and the inner wall of the main body can be adapted to be inclined to match the inclined side surface 14; or, the inner wall of the main body can be a straight wall, There is a certain gap between the inclined side surface 14 and the inner wall of the main body.

As shown in FIG. 2 , in the second embodiment of the present invention, similar to the above-mentioned first embodiment, the flash lens 20 is also in the shape of a "big head", which is used to be mounted on the body from the outside. However, the difference from the above-mentioned first embodiment is that a groove is formed in the flash lens 20 , and the inclined side surface 26 and the light incident surface 27 are both inner surfaces of the groove. The flash lens 20 further includes a first surface 22, a second surface 23, a third surface 24 and a fourth surface 25, a light-emitting surface 21, a first surface 22, a second surface 23, a third surface 24, a fourth surface 25, an inclined surface The side surface 26 and the light incident surface 27 are connected in sequence, and the first surface 22 and the third surface 24 are both perpendicular to the light exit surface 21 , and the second surface 23 and the fourth surface 25 are both parallel to the light exit surface 21 . The light absorbing layer (the black shaded part in FIG. 2 ) is also provided on the second surface 23 , the third surface 24 and the fourth surface 25 .

In this second embodiment, the light exit surface 21, the first surface 22 and the second surface 23 form a boss, and the third surface 24, the fourth surface 25, the inclined side surface 26 and the light incident surface 27 form the groove, The radial dimension of the boss area is greater than the radial dimension of the groove area. The setting of the groove is suitable for the situation where the internal structure space of the product is limited, and the flash lamp can be installed in the position corresponding to the groove, so as to make use of the structure of the groove to install the flash lamp as compactly as possible. Since the light absorbing layers are provided on the second surface 23 , the third surface 24 , the fourth surface 25 and the inclined side surface 26 , these surfaces appear black when the human eye looks at the flash lens 20 , giving people a lens viewing experience. In other embodiments, in order to ensure people's viewing experience under various viewing angles, the light absorbing layer may also be provided on the first surface 22; or, in order to save costs, only the second surface 23 and the fourth surface 25 may be provided The light absorbing layer is arranged on the inclined side surface 26 to only ensure the pseudo-dual-camera experience when the human eye is perpendicular to the flash lens 20 .

As shown in FIG. 3 , in the third embodiment of the present invention, similar to the above-mentioned first embodiment, the flash lens 30 is also in the shape of a "big head". But the difference is that the boss of the flash lens 30 is composed of a light incident surface 35 , a first surface 34 and a second surface 33 , and the boss is arranged close to the light incident surface 35 , that is, the general shape of the flash lens 30 is the same as that of the flash lens 30 . The general shape of the mirror sheet 10 is a mirror image. The flash lens 30 is mounted on the body from the inside. Specifically, the light incident surface 35 , the first surface 34 , the second surface 33 , the inclined side surface 32 , and the light exit surface 31 are connected in sequence, and the first surface 34 is perpendicular to the light exit surface 31 , and the second surface 33 is parallel to the light incident surface 35 . The light absorbing layer is also provided on the second surface 33 . Since the light absorbing layer is provided on the second surface 33 and the inclined side surface 32 , these surfaces appear black when the human eye looks at the flash lens 30 , giving people a lens viewing experience. In other embodiments, in order to ensure a person's viewing experience under various viewing angles, the light absorbing layer may also be provided on the first surface 34 .

As shown in FIG. 4 , in the fourth embodiment of the present invention, similar to the above-mentioned second embodiment, the flash lens 40 is also in the shape of a “big head”, but its general shape is set as a mirror image of the flash lens 20 . Specifically, a groove is formed in the flash lens 40 , and both the inclined side surface 46 and the light incident surface 47 are inner surfaces of the groove. The flash lens 40 further includes a first surface 42, a second surface 34, a third surface 44 and a fourth surface 45, the light exit surface 41, the first surface 42, the second surface 43, the third surface 44, the fourth surface 45, the inclined surface The side surface 46 and the light incident surface 47 are connected in sequence, and the first surface 42 and the third surface 44 are both perpendicular to the light exit surface 41 , and the second surface 43 and the fourth surface 45 are both parallel to the light exit surface 41 . The light absorbing layer is also provided on the fourth surface 45 (the black shaded part in FIG. 4 ).

In the fourth embodiment, the flash lens 40 can be mounted on the body from the inside, and the groove can be used to accommodate the flash, and this design is beneficial to save the internal structure space of the product. Since the light absorbing layer is provided on the fourth surface 45 and the inclined side surface 46 , these surfaces appear black when the human eye looks at the flash lens 40 , giving people an experience of viewing the lens. In other embodiments, in order to ensure a person's viewing experience under various viewing angles, the light absorbing layer may also be provided on the first surface 42 , the second surface 43 and/or the third surface 44 .

The flash lenses described in the first to fourth embodiments above all have bosses, and the bosses are convenient for engaging with the body. In other embodiments, the flash lens may not be provided with the boss, but is in the shape of a frustum as a whole, and the frustum-shaped flash lens is embedded in the body.

In the embodiment of the present invention, as shown in FIG. 1 to FIG. 4 , a Fresnel tooth pattern may be formed on the light incident surface, so that the part of the flash lens is a Fresnel lens, so that the light of the flash can be scattered in all directions. It converges and exits in parallel to illuminate the subject and can reduce chromatic aberration.

Further, in the embodiment of the present invention, the light absorbing layer may include a film base layer (not shown), and the surface of the film base layer is coated with black paint. The black paint imparts light absorbing properties to the film base. The film base layer may be made of a soft material that can be easily bent to conform to the surface of the flash lens. The light absorbing layer can be attached to the surface that needs to absorb light, and the surface refers to the above-mentioned inclined side, the first surface, the second surface, the third surface and/or the fourth surface . The light absorbing layer on the surface may be one, or several connected in sequence. Compared with the method of integrally forming the light absorbing layer on the flash lens, by attaching the light absorbing layer to the flash lens, only the light absorbing layer can be replaced when needed without replacing the entire flash lens. Of course, the light-absorbing layer may also be integrally formed on the flash lens, for example, the light-absorbing layer is a layer of light-absorbing paint.

Alternatively, further, the light absorbing layer may include a thin film base layer (not shown), and a bundled nanotube structure is formed in the thin film base layer. That is, a large number of bundled carbon nanotubes are closely arranged in the film base layer, and the incident light cannot be emitted, so that the light absorption layer has excellent light absorption performance.

As shown in FIG. 5 and FIG. 6 , an embodiment of the present invention further provides a camera assembly 50, including a camera assembly and a flash assembly, the camera assembly is disposed adjacent to the flash assembly, and the flash assembly is used for The camera module performs fill light when capturing images. The camera module may include a camera 54 and a camera lens 51 . The light incident end face 542 of the camera 54 appears black. The light-incident end surface 542 is the light-receiving surface of the camera 54 except the lens area 541 , which is indicated by hatching in FIG. 6 . The light incident end face 542 appears black because a black material, such as black plastic, is used. The camera lens 51 is used to transmit light entering the camera 54 . The flash unit may include a flash 56 and the flash lens described in the above embodiment, the flash lens is used for the light emitted by the flash 56 to pass therethrough. In the following embodiments, the flash lens is the flash lens 30 in the above-mentioned third embodiment as an example for description.

In the camera assembly 50 of this embodiment, the light absorbing layer on the inclined side surface 32 of the flash lens 30 and the second surface 33 can absorb light, so that the two surfaces appear the same black color as the light incident end surface 542 of the camera 54 . When the human eye looks at the camera assembly 50, a "dual camera" sensory experience is produced. As a result, the camera assembly 50 provides the appearance experience of dual cameras by imitating the dual-camera design, which does not require a substantial increase in cost and is very easy to implement.

Further, as shown in FIGS. 5 and 6 , the camera assembly 50 may further include a transparent cover plate 52 . The transparent cover plate 52 is provided with a first through hole 521 and a second through hole 522 . The camera lens 51 is accommodated in the first through hole 521 , and the flash lens 30 is accommodated in the second through hole 522 . The transparent cover plate 52 serves to accommodate and hold the camera lens 51 and the flash lens 30 . The transparent cover plate 52 can be made of transparent material, so as to enhance the appearance and enhance the user experience.

In addition, compared with the transparent cover plate 52 , the camera lens 51 and the flash lens 30 have higher requirements on strength, optics and processing technology. For example, the transparent cover plate 52 can be made of acrylic material, and the camera lens 51 can be made of sapphire material. Therefore, by designing the transparent cover plate 52 which is independent of the camera lens 52 and the flash lens 30 instead of being integrated, it is possible to focus on designing and processing key positions and save costs. Of course, the transparent cover plate 52, the camera lens 51 and the flash lens 30 may also have the same strength, optical parameters and processing technology.

Further, as shown in FIG. 6 , the hole wall of the second through hole 522 is inclined, that is, the diameter of the second through hole 522 gradually increases from one end to the other end. Specifically, the outer end (indicated by the solid line) of the second through hole 522 may have a smaller aperture, and the inward end (indicated by the dotted line) may have a larger aperture, so as to adapt to the shape of the flash lens 30 . The inclined side surface 32 of the flash lens 30 is matched with the hole wall of the second through hole 522 . The second through hole 522 with the inclined hole wall is beneficial to the stable assembly of the flash lens 30 .

In other embodiments, the flash lens can also be the flash lens 10 in the above-mentioned first embodiment. At this time, the second through hole is a stepped hole, which includes a first hole and a second hole that are communicated with each other. The aperture of the first hole is constant and larger, and the aperture of the second hole is smaller and gradually reduced to adapt to the shape of the flash lens 10 . The inclined side surface 14 of the flash lens 10 is matched with the hole wall of the second through hole (specifically, the hole wall of the second hole).

Alternatively, the flash lens can also be the flash lens 20 in the above-mentioned second embodiment. In this case, the second through hole is a stepped hole, which includes a third hole and a fourth hole that are communicated with each other. The apertures of the third hole and the fourth hole are both constant, but the aperture of the third hole is larger than the aperture of the fourth hole to adapt to the shape of the flash lens 20 . The inclined side surface 26 of the flash lens 20 has no matching relationship with the hole wall of the second through hole.

Alternatively, the flash lens can also be the flash lens 40 in the above-mentioned fourth embodiment. In this case, the second through hole is a stepped hole, including a fifth hole and a sixth hole that are connected to each other. The apertures of the fifth hole and the sixth hole are both constant, but the aperture of the fifth hole is smaller than the aperture of the sixth hole to adapt to the shape of the flash lens 40 . The inclined side surface 46 of the flash lens 40 has no matching relationship with the hole wall of the second through hole.

Further, as shown in FIG. 5 and FIG. 6 , the camera assembly 50 may further include a frame 53 . The frame 53 encloses the transparent cover 52 and the camera lens 51 and the flash lens 30 in the transparent cover 52 . The frame 53 plays the role of decoration and retention. The frame 53 may be made of a metal material to improve texture and achieve grounding. Of course, the frame 53 can also be made of non-metallic materials.

Further, as shown in FIGS. 5 and 6 , the camera assembly 50 may further include a pressing plate 55 . The frame 53 , the transparent cover 52 , the flash lens 30 and the camera lens 51 are all carried on the pressing plate 55 , and the camera 54 and the flash 56 are both arranged in the pressing plate 55 . An opening 551 and an opening 552 are respectively provided on the pressing plate 55 at positions corresponding to the camera 54 and the flash 56 . The first through hole 521 is aligned with the opening 551 corresponding to the camera 54 , and the second through hole 522 is aligned with the opening 552 corresponding to the flash 56 . The pressing plate 55 serves as a bearing member and can be assembled to the terminal equipment independently. For example, the pressing plate 55 may be installed on the middle frame of a terminal device such as a mobile phone. Since the middle frame is a component with relatively high structural strength, after the pressing plate 55 is mounted on the middle frame, it can well support the various components carried thereon.

During assembly, the flash lens 30 can be placed at the opening 552 of the pressing plate 55 so that the light-emitting surface 31 faces upwards; then the transparent cover 52 is installed to the pressing plate 55 so that the second through hole 552 is matched with the flash lens 30; The lens 51 is inserted into the first through hole 521 ; the frame 53 is then inserted into the pressing plate 55 to enclose the transparent cover 52 therein. Of course, the frame 53 can also be installed before the transparent cover 52, and the transparent cover 52 can be embedded in the frame 53; the camera lens 51 can also be inserted into the first through hole 521 to form an assembly with the transparent cover 52, and then this The assembly is integrated into the pressure plate 55 .

As shown in FIG. 5 and FIG. 6 , the transparent cover plate 52 is covered on the pressing plate 55, and the first through holes 521 and the second through holes 522 on the transparent cover plate 52 are aligned with the opening 551 and the opening 552, respectively, so that the The camera lens 51 in the first through hole 521 is aligned with the camera 54 , and the flash lens 30 in the second through hole 522 is aligned with the flash 56 . Therefore, the natural light can enter the camera 54 through the camera lens 51 and the opening 551 , and the light from the flash 56 passes through the opening 552 and exits through the flash lens 30 .

Further, in this example, as shown in FIG. 6 , a groove 553 is formed on the pressing plate 55 , and the frame 53 is installed in the groove 553 . The grooves 553 are designed to stably install the frame 53 and at the same time reduce the height of the frame 53 protruding from the pressing plate 55 , thereby reducing the size of the terminal device and improving the appearance. Of course, the groove 553 may not be provided.

Further, in this example, as shown in FIG. 6 , the bottom of the frame 53 may be provided with a folded edge 531 extending horizontally to the outside of the frame 53 , and the folded edge 531 is installed at the bottom of the groove 553 . Designing the folded edge 531 can increase the connection strength and reduce the risk of the frame 53 falling off.

As shown in FIG. 7 , an embodiment of the present invention further provides a terminal device 60 , and the terminal device 60 may be, for example, a mobile phone. The terminal device 60 includes a housing 61 . A window (not shown) is provided on the casing 61 . The terminal device 60 further includes a camera assembly 50 . The camera 54 and the flash 56 are both arranged in the casing 61 , and the frame 53 , the transparent cover 52 , the camera lens 51 and the flash lens 30 are all accommodated in the opening window.

Further, with reference to FIGS. 5 to 7 , the housing 61 includes a middle frame and a rear shell that is fastened to the middle frame. The visible part of the casing 61 in FIG. 7 is the rear case, and the shielded part installed under the rear case is the middle frame. Wherein, the opening window is arranged on the rear casing. The camera 54 and the flash 56 are both disposed on the middle frame and housed in the rear case. In this embodiment, the camera assembly 50 further includes a pressure plate 55 . The pressure plate 55 is installed between the middle frame and the rear case. The frame 53 , the transparent cover 52 , the camera lens 51 , and the flash lens 30 are all supported on the pressure plate 55 . superior. Since the middle frame is a component with high structural strength, after the pressing plate 55 is installed on the middle frame, it can support the frame 53 , the transparent cover 52 , the camera lens 51 , and the flash lens 30 and other components carried thereon.

When assembling, after the camera assembly 50 is assembled on the middle frame, the rear case is fastened, so that the frame 53 is exposed from the opening, and the transparent cover 52 can be seen from the opening. , the camera lens 51 , and the flash lens 30 .

Further, in this example, as shown in FIG. 8 , the terminal device 60 may further include a circuit board 62 , and the circuit board 62 is disposed on the middle frame and located in the rear case. The circuit board 62 is provided with a notch 621 , the camera 54 is located in the notch 621 and is electrically connected to the circuit board 62 , and the flash 56 is arranged on the circuit board 62 . In this design, the camera 54 is not directly arranged on the circuit board 62 , but outside the circuit board 62 , so the position of the camera 54 can be adjusted as required to reduce the overall thickness of the terminal device 60 . Of course, the circuit board 62 may not have the notch 621 , and the camera 54 is directly arranged on the circuit board 62 .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed by the present invention. Modifications or replacements, these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (17)

1. A flash lens, characterized in that, It includes a light incident surface, a light exit surface and an inclined side surface, the light entrance surface is arranged opposite to the light exit surface, the inclined side surface is connected with the light entrance surface, and is arranged at an angle with the normal of the light exit surface, The orthographic projection of the inclined side surface on the light-emitting surface is located at the periphery of the light-emitting surface; a groove is formed in the flash lens, and the inclined side surface and the light incident surface are both inner surfaces of the groove; the flash lens further comprises a first surface, the second surface, the third surface and the fourth surface, the light emitting surface, the first surface, the second surface, the third surface, the fourth surface, the inclined side surface, and all the The light incident surfaces are connected in sequence, the light exit surface, the first surface and the second surface form a boss; the third surface, the fourth surface, the inclined side surface and the light incident surface form the groove ; Both the inclined side surface and the fourth surface are provided with a light absorbing layer. 2. The flash lens of claim 1, wherein The first surface and the third surface are both perpendicular to the light-emitting surface, and the second surface and the fourth surface are both parallel to the light-emitting surface; the second surface and the third surface are on the The light absorbing layer is also provided. 3. The flash lens of claim 1, wherein The first surface is perpendicular to the light exit surface, and the second surface is parallel to the light incident surface; the light absorption layer is also provided on the second surface. 4. The flash lens of claim 1, wherein The first surface and the third surface are both perpendicular to the light emitting surface, and the second surface and the fourth surface are both parallel to the light emitting surface. 5. The flash lens according to any one of claims 1-4, characterized in that, A Fresnel tooth pattern is formed on the light incident surface. 6. The flash lens according to any one of claims 1-4, characterized in that, The light absorption layer includes a film base layer, and the surface of the film base layer is coated with black paint. 7. The flash lens according to any one of claims 1-4, characterized in that, The light absorption layer includes a thin film base layer, and a bundled nanotube structure is formed in the thin film base layer. 8. A camera assembly, comprising a camera module, the camera module comprising a camera and a camera lens, the camera lens being used to transmit light entering the camera, characterized in that: The camera assembly further includes a flash unit disposed adjacent to the camera module; the flash unit includes a flash and the flash lens according to any one of claims 1 to 7, the flash lens is used to make the The light emitted by the flash passes through, and the light absorbing layer is used for absorbing the light so that the inclined side surface presents the same color as the light incident end surface of the camera. 9. The camera assembly according to claim 8, wherein: The camera assembly further includes a transparent cover plate, the transparent cover plate is provided with a first through hole and a second through hole, the camera lens is accommodated in the first through hole, and the flash lens is accommodated in the first through hole. in the second through hole. 10. The camera assembly according to claim 9, wherein, The hole wall of the second through hole is arranged obliquely, and the inclined side surface of the flash lens is matched with the hole wall of the second through hole. 11. The camera assembly according to claim 9 or 10, wherein, The camera assembly further includes a frame, and the frame surrounds the transparent cover plate therein. 12. The camera assembly according to claim 11, wherein: The camera assembly further includes a pressure plate, and the frame, the transparent cover, the camera lens, and the flash lens are all carried on the pressure plate; the pressure plate corresponds to the position of the camera and the flash. Openings are provided at all positions, the opening corresponding to the camera is aligned with the first through hole, and the opening corresponding to the flash is aligned with the second through hole. 13. The camera assembly of claim 12, wherein: A groove is formed on the pressing plate, and the frame is installed in the groove. 14. The camera assembly of claim 13, wherein: The bottom of the frame is provided with a folded edge extending horizontally toward the outside of the frame, and the folded edge is installed at the bottom of the groove. 15. A terminal device, comprising a housing, characterized in that: The casing is provided with a window; the terminal device further includes the camera assembly according to any one of claims 8-14, the camera and the flash are both arranged in the casing, and the camera Both the frame and the transparent cover of the component are accommodated in the opening. 16. The terminal device according to claim 15, wherein, The casing includes a middle frame and a rear casing fastened on the middle frame, the opening window is arranged on the rear casing, the camera and the flash are both arranged on the middle frame and accommodated in the middle frame. inside the rear casing; the camera assembly further includes a pressing plate, the pressing plate is installed between the middle frame and the rear casing, the frame, the transparent cover, the camera lens, and the The flash lenses are all carried on the pressing plate. 17. The terminal device according to claim 16, wherein, The terminal device further includes a circuit board, which is arranged on the middle frame and is located in the rear shell; a notch is formed on the circuit board, and the camera is located in the notch and is connected with the The circuit board is electrically connected; the flashing light is arranged on the circuit board.

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