Mobile terminal

Abstract

An embodiment of the present application provides a mobile terminal, including: a camera and a fill light module; the fill light module includes a fill light source and a light guide member having a first avoidance opening; a plane perpendicular to the optical axis of the camera is a projection plane, and the projection of the end face of the camera near the object side on the projection plane is located in the projection of the first avoidance opening on the projection plane; one end of the light guide member near the object side has a plurality of spaced-apart convex portions, each convex portion includes a reflection surface and a light-emitting surface corresponding to the reflection surface, the light of the fill light source enters the light guide member, the reflection surface reflects a part of the light of the fill light source to the corresponding light-emitting surface, and guides it to the field of view of the camera through the corresponding light-emitting surface. The mobile terminal according to the embodiment of the present application can provide sufficient illumination for the field of view of the camera in the close-range shooting mode, and thus, the object to be photographed in the field of view can be clearly photographed.

Description

Technical Field

[0001] The present invention belongs to the field of imaging technology, and particularly relates to a mobile terminal. Background Art

[0002] In order to meet different photographing needs of users, various cameras with different functions have emerged on mobile terminals, such as macro cameras, super macro cameras, wide-angle cameras, telephoto cameras, and so on. A macro camera can be used for close-range macro photography, and a super macro camera can be used for super macro photography.

[0003] In related technologies, the distance between the flash used for filling light and the camera is relatively far. When performing close-range macro or super macro photography, since the distance between the camera and the object to be photographed is generally only a few centimeters or even a few millimeters, the illuminance within the field of view is significantly insufficient, and the object to be photographed within the field of view cannot be clearly photographed. Summary of the Invention

[0004] In view of this, embodiments of the present application are expected to provide a mobile terminal that can provide sufficient light for the field of view in a close-range shooting mode.

[0005] To achieve the above object, embodiments of the present application provide a mobile terminal, including:

[0006] A camera;

[0007] A light-filling module, the light-filling module includes a light-filling light source and a light guide member having a first avoidance opening; a plane perpendicular to the optical axis of the camera is a projection plane, and the projection of the end face of the camera near the object side on the projection plane is located within the projection of the first avoidance opening on the projection plane; one end of the light guide member near the object side has a plurality of spaced-apart protrusions, each protrusion includes a reflection surface and a light-emitting surface corresponding to the reflection surface, the light of the light-filling light source enters the light guide member, the reflection surface reflects a part of the light of the light-filling light source to the corresponding light-emitting surface, and guides it to the field of view of the camera through the corresponding light-emitting surface.

[0008] Further, the reflection surfaces of the plurality of protrusions are arranged in parallel and spaced apart, and the angle between the reflection surface and the light-emitting surface of one protrusion is the same as the angle between the reflection surface and the light-emitting surface of another protrusion.

[0009] Further, the angle between the reflection surface and the light-emitting surface of the same protrusion ranges from 15° to 45°.

[0010] Further, the light-emitting surfaces of the plurality of protruding portions are arranged in parallel at intervals, and among two adjacent protruding portions, the angle between the reflecting surface and the light-emitting surface of the protruding portion closer to the optical axis is greater than the angle between the reflecting surface and the light-emitting surface of the protruding portion farther from the optical axis; or,

[0011] The light-emitting surfaces of the plurality of protruding portions are arranged in parallel at intervals, and among two adjacent protruding portions, the angle between the reflecting surface and the light-emitting surface of the protruding portion closer to the optical axis is less than the angle between the reflecting surface and the light-emitting surface of the protruding portion farther from the optical axis.

[0012] Further, the light-emitting surface is perpendicular to the projection surface; or, the light-emitting surface is inclined with respect to the projection surface.

[0013] Further, one end of the camera closer to the object side is inserted into the first avoidance opening; or, the light guide is arranged at one end of the camera closer to the object side, and the camera is located outside the first avoidance opening.

[0014] Further, the light guide includes a plurality of sub-light guides, and the plurality of sub-light guides are arranged at intervals to enclose and form the first avoidance opening.

[0015] Further, the number of the supplementary light sources is multiple, and the multiple supplementary light sources are arranged at intervals along the circumferential direction of the camera.

[0016] Further, the light guide has an installation space arranged on the periphery of the first avoidance opening, and the supplementary light source is arranged in the installation space.

[0017] Further, the mobile terminal further includes a protective lens and a housing having a receiving cavity, and the housing has a second avoidance hole communicated with the receiving cavity;

[0018] Both the camera and the supplementary light module are arranged in the receiving cavity, and one end of the camera closer to the object side and the light guide are both located at the second avoidance hole, and the protective lens is arranged in the second avoidance hole.

[0019] Further, the second avoidance hole includes a first sub-hole and a second sub-hole, and the protective lens includes a first sub-lens and a second sub-lens;

[0020] The second sub-hole surrounds the first sub-hole, one end of the camera closer to the object side is located at the first sub-hole, and the light guide is located at the second sub-hole;

[0021] The first sub-lens is arranged in the first sub-hole, and the second sub-lens is arranged in the second sub-hole.

[0022] Further, the end face of the light guide member away from the object side is a non-light-transmitting surface.

[0023] An embodiment of the present application provides a mobile terminal. By arranging a plurality of convex portions having a reflecting surface and a light-emitting surface at intervals at one end of the light guide member close to the object side, the light of the supplementary light source can be guided from the peripheral side of the camera to the object to be photographed through the convex portions. Thus, as much light as possible can be guided to the field of view of the camera within a limited structural space. Therefore, in the close-up shooting mode, sufficient light can be provided for the field of view of the camera, and further, the object to be photographed within the field of view can be clearly photographed.

[0024] An embodiment of the present application provides a mobile terminal. By arranging a plurality of convex portions having a reflecting surface and a light-emitting surface at intervals at one end of the light guide member close to the object side, the light of the supplementary light source can be guided from the peripheral side of the camera to the object to be photographed through the convex portions. Thus, as much light as possible can be guided to the field of view of the camera within a limited structural space. Therefore, in the close-up shooting mode, sufficient light can be provided for the field of view of the camera, and further, the object to be photographed within the field of view can be clearly photographed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a camera according to an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of a mobile phone photographing an object to be photographed;

[0027] Figure 3 is a partial cross-sectional view of a mobile terminal provided by an embodiment of the present application. The continuous arrows in the figure indicate the propagation direction of a part of the light of the light guide light source;

[0028] Figure 4 is a partial cross-sectional view of a second mobile terminal provided by an embodiment of the present application. The continuous arrows in the figure indicate the propagation direction of a part of the light of the light guide light source;

[0029] Figure 5 is a partial cross-sectional view of a third mobile terminal provided by an embodiment of the present application. The continuous arrows in the figure indicate the propagation direction of a part of the light of the light guide light source;

[0030] Figure 6 is a schematic structural diagram of a second supplementary light module provided by an embodiment of the present application;

[0031] Figure 7 is a schematic structural diagram of a third supplementary light module provided by an embodiment of the present application;

[0032] Figure 8 is Figure 3 a partial external structural diagram of the mobile terminal shown in

[0033] Figure 9 is a partial external structural diagram of a fourth mobile terminal provided by an embodiment of the present application.

[0034] Reference Numerals:

[0035] Mobile terminal 10; housing 11; accommodation cavity 11a; second avoidance hole 11b; first sub-hole 11c; second sub-hole 11d; camera 12; lens 121; Sensor 122; PCB board 123; fixer 124; fill light module 13; light guide member 131; sub-light guide member 1311; first avoidance opening 131a; convex portion 131b; reflection surface 131c; light-emitting surface 131d; light-blocking surface 131e; installation space 131f; light-blocking surface 131e; fill light source 132; protective lens 14; first sub-lens 141; second sub-lens 142; screen 15; object to be photographed 20; magnified image on the screen 30. Detailed implementation manner

[0036] The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] It should be noted that, without conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other. The detailed description in the specific implementation manner should be understood as an explanatory illustration of the gist of the present application and should not be regarded as an improper limitation of the present application.

[0038] Please refer to Figure 1 and Figure 2, the camera 12 described in this application includes a lens 121, a Sensor (image sensor) 122, a PCB board (printed circuit board) 123, and a holder 124. The Sensor 122 includes, but is not limited to, a CCD (Charged Coupled Device) and a CMOS (Complementary Metal Oxide Semiconductor). The Sensor 122 is fixed on the PCB board 123. The holder 124 is disposed on the side of the Sensor 122 close to the object 20 to be photographed and is connected to the PCB board 123. The holder 124 is provided with a cavity for accommodating the lens 121, and the lens 121 faces the Sensor 122. During the photographing process, the light of the object 20 to be photographed enters the camera 12. The incident light first enters the lens 121 and then reaches the Sensor 122. The photons in the light hit the Sensor 122 to generate movable charges, which is the internal photoelectric effect. The movable charges gather to form an electrical signal, which is subjected to analog-to-digital conversion by an A / D converter, that is, the charge signal is converted into a digital signal. The digital signal is sent to a DSP (Digital Signal Processor) for processing and finally transmitted to the screen 16 of the terminal device to form a displayed image, that is, the photographing of the object 20 to be photographed is realized. Specifically, the structure of the DSP includes an ISP (Image Signal Processor) and a JPEG encoder (JPEG image decoder), where the ISP is the key to determining the smoothness of the image. It can be understood that for a CMOS, the DSP can be integrated within the CMOS. The CMOS has the advantages of high integration, low power consumption, and low cost, and is more suitable for mobile phones with limited internal space.

[0039] The PCB board 123 can be a rigid board, a flexible board, or a rigid-flex board. When a mobile phone uses a CMOS, the CMOS can be applicable to any one of a rigid board, a flexible board, or a rigid-flex board. When a mobile phone uses a CCD, only a rigid-flex board can be used, and the rigid-flex board has the highest price among the above three types of boards. Therefore, when using a CCD, it will result in a relatively high cost of the mobile phone.

[0040] In some embodiments, the camera can be a macro camera capable of performing macro photography. A macro camera refers to a camera that, through the optical ability of the lens 121, can perform photography with a relatively large optical magnification when the distance from the object to be photographed is relatively close while ensuring that the image of the object to be photographed is clear. Among them, the optical magnification refers to the ratio between the imaging height of the sensor and the height of the object to be photographed.

[0041] It should be noted that the magnification perceived by the user = optical magnification * screen magnification * digital magnification. The optical magnification refers to the ratio of the height of the image formed on the sensor to the height of the object being photographed. The screen magnification refers to the ratio of the screen size to the sensor size. The digital magnification is the ratio of the size of a magnified part on the screen after the user manually magnifies a part of the screen to the size of that part on the screen before magnification. Specifically, an example is used to illustrate the magnification principle of the image perceived by the user after shooting. For example, Figure 2 As shown, the light reflected from the object 20 reaches the Sensor 122 after passing through the lens 121, and then generates an electrical signal. After passing through the analog-to-digital conversion device, the electrical signal is converted into a digital signal. After being processed by the DSP digital signal processing chip, it is transmitted to the screen 16 of the mobile terminal to form an image, and the user can magnify a part of the image on the screen 16 as needed. At this time, the image displayed on the screen 16 is the screen magnified image 30.

[0042] Specifically, according to the basic optical imaging principle, tan(FOV / 2) = imaging height / focal length = object height / object distance, and optical magnification = imaging height / object height = focal length / object distance. Among them, FOV (Field Of View) is the field of view angle, which refers to the angle formed by two sides of the maximum range that the object to be measured or photographed can pass through the center of the lens with the center of the lens of the optical instrument as the vertex in the optical instrument. FOV is usually used to measure the field of view range of the lens. For example, the viewing angle of a conventional standard lens is about 45 degrees, and the viewing angle of the wide-angle lens 121 is more than 60 degrees. According to the above calculation formula of optical magnification, to increase the optical magnification, it can be achieved by reducing the working distance or increasing the focal length, that is, on the premise of ensuring clear imaging, the lens 121 is as close as possible to the object being photographed and the focal length of the lens 121 is increased. Among them, the working distance refers to the distance from the object being photographed to the front end of the lens.

[0043] According to the Gaussian imaging formula, 1 / f = 1 / u + 1 / v. Where f is the focal length; u is the object distance; v is the image distance;

[0044] When u > 2f, the object being photographed forms a reduced and inverted real image on the Sensor 122;

[0045] When u = 2f, v = f, that is, the focal length is equal to the image distance, and the object being photographed forms an equal-sized and inverted real image on the Sensor 122;

[0046] When f < u < 2f, the object being photographed forms an enlarged and inverted real image on the Sensor 122;

[0047] When u = f, the object being photographed does not form an image on the Sensor 122;

[0048] When u < f, a virtual image is formed, and the object to be photographed cannot form a real image on Sensor122.

[0049] Therefore, with the focal length f unchanged, v and u show opposite trends of change. When u increases, v decreases; when u decreases, v increases. Since macro photography is a shooting method of taking a close-up shot to obtain an enlarged image of the object to be photographed, that is, the object to be photographed forms an enlarged real image on the sensor. Therefore, during close-up macro photography, the object distance u is relatively small, and the working distance is also correspondingly small. Therefore, in order to meet the need for focusing, the focal length of the lens 121 needs to be smaller to ensure that f < u < 2f, and the image distance and object distance satisfy the above Gaussian imaging formula.

[0050] The internationally recognized statement in the photography industry is that photography with an optical magnification of around 1∶1 to 1∶4 belongs to macro photography. In some embodiments, the camera can also be an ultra-macro camera capable of performing ultra-macro photography. An ultra-macro camera refers to a macro camera that can still achieve focusing when the working distance is less than 10 mm, that is, the sensor can still clearly image when the working distance is less than 10 mm. It should be noted that "less than" in the embodiments of the present application does not include this number. In one embodiment, the ultra-macro range is 3 mm to 9 mm. That is to say, when the working distance is 3 mm to 9 mm, the ultra-macro camera can image and can clearly image on Sensor122.

[0051] The ultra-macro camera can be a telephoto ultra-macro lens or a wide-angle ultra-macro lens. Exemplarily, the value range of the focal length f of the wide-angle ultra-macro lens is 1.3 mm to 2.2 mm, the FOV is 70° to 78°. Exemplarily, the effective focal length f of the wide-angle ultra-macro lens is 1.335 mm, the FOV at the maximum image height is 77.6 degrees, the aperture value (f-number) is 2.8, and it can clearly image when the working distance is 3 mm. That is to say, the lens 121 can focus on the object to be photographed with a working distance of about 3 mm.

[0052] In the embodiments of the present application, "a plurality of" means greater than or equal to two.

[0053] In the embodiments of the present application, the field of view refers to the area where the object to be photographed can be seen on the screen of the mobile terminal; the object side refers to the side close to the object to be photographed.

[0054] The mobile terminal in the embodiments of the present application may include terminal devices such as mobile phones, laptop computers, tablet computers, PDAs (Personal Digital Assistants), and portable computers. For the convenience of description, in the embodiments of the present application, the mobile terminal is taken as an example of a mobile phone for description.

[0055] One embodiment of the present application provides a mobile terminal. Please refer toFigure 3 The mobile terminal 10 includes a camera 12 and a fill light module 13. The fill light module 13 includes a fill light source 132 and a light guide member 131 having a first avoidance opening 131a. A plane perpendicular to the optical axis A of the camera 12 is a projection plane, and the projection of the end face of the camera 12 near the object side on the projection plane is located within the projection of the first avoidance opening 131a on the projection plane. One end of the light guide member 131 near the object side has a plurality of protruding portions 131b arranged at intervals. Each protruding portion 131b includes a reflecting surface 131c and a light-emitting surface 131d corresponding to the reflecting surface 131c. The light of the fill light source 132 enters the light guide member 131, and the reflecting surface 131c reflects a part of the light of the fill light source 132 to the corresponding light-emitting surface 131d, and the light is refracted on the light-emitting surface 131d, so that a part of the light of the fill light source 132 can be guided to the field of view of the camera 12 through the corresponding light-emitting surface 131d. That is to say, when shooting, the plurality of protruding portions 131b can guide the light of the fill light source 132 from the periphery of the camera 12 to the object 20 to be photographed, and the light reflected from the object 20 to be photographed enters the camera 12 through the first avoidance opening 131a to achieve imaging.

[0056] It should be noted that in practical applications, a small amount of the light of the fill light source 132, after entering the corresponding protruding portion 131b, will not be projected onto the reflecting surface 131c of the protruding portion 131b, but will be directly projected onto the light-emitting surface 131d of the protruding portion 131b, and will be directly refracted on the light-emitting surface 131d to guide to the field of view of the camera 12. However, most of the light guiding to the field of view of the camera 12 still mainly comes from the reflection of the reflecting surface 131c.

[0057] In the mobile terminal 10 according to the embodiment of the present application, by arranging a plurality of protruding portions 131b at intervals at one end of the light guide member 131 near the object side, and each protruding portion 131b is provided with a reflecting surface 131c and a light-emitting surface 131d corresponding to the reflecting surface 131c, it can be ensured that the reflecting surface 131c can reflect as much light as possible to the light-emitting surface 131d. Thus, as much light as possible can be guided to the field of view of the camera 12 within a limited structural space. Therefore, in the close-up shooting mode, sufficient illumination can be provided for the field of view of the camera 12, and further, the object 20 within the field of view can be clearly photographed.

[0058] Please refer to Figure 3 and Figure 6 , the reflecting surfaces 131c of the plurality of protruding portions 131b in this embodiment are arranged in parallel at intervals, and the included angle α (refer to Figure 6 ) between the reflecting surface 131c and the light-emitting surface 131d of one protruding portion 131b is the same as the included angle α between the reflecting surface 131c and the light-emitting surface 131d of another protruding portion 131b.

[0059] Specifically, please refer to Figure 3 , each reflecting surface 131c can intersect with the corresponding light-emitting surface 131d to form a sharp angle at the intersection. Please refer to Figure 6 , each reflecting surface 131c can also not intersect with the corresponding light-emitting surface 131d, which is equivalent to that the end of each reflecting surface 131c near the object side corresponding to the light-emitting surface 131d is a plane or a curved surface. Optionally, the included angle α between the reflecting surface 131c and the light-emitting surface 131d of the same convex part 131b ranges from 15° to 45°.

[0060] The light-emitting surface 131d of each convex part 131b in this embodiment is perpendicular to the projection surface. In other embodiments, the light-emitting surface 131d of each convex part 131b can also be inclined relative to the projection surface.

[0061] Please refer to Figure 7 , in another embodiment, the light-emitting surfaces 131d of multiple convex parts 131b can also be arranged in parallel at intervals. Each light-emitting surface 131d can be perpendicular to the projection surface or can be inclined relative to the projection surface at the same angle. Among two adjacent convex parts 131b, the included angle α between the reflecting surface 131c of the convex part 131b close to the optical axis A and the corresponding light-emitting surface 131d is greater than the included angle α between the reflecting surface 131c of the convex part 131b far from the optical axis A and the corresponding light-emitting surface 131d. That is to say, the reflecting surfaces 131c of multiple convex parts 131b are not parallel. From the direction close to the optical axis A to the direction far from the optical axis A, the included angle α between the reflecting surface 131c and the corresponding light-emitting surface 131d gradually becomes smaller. Thus, the light guiding effect can be further improved. In other embodiments, it can also be that among two adjacent reflecting surfaces 131c, the included angle α between the reflecting surface 131c close to the optical axis A and the corresponding light-emitting surface 131d is less than the included angle α between the reflecting surface 131c far from the optical axis A and the corresponding light-emitting surface 131d.

[0062] Please refer to Figure 8 , the light guiding member 131 in the embodiment of the present application is a continuous ring structure. Specifically, the light guiding member 131 in the embodiment of the present application is circular. To improve the uniformity of supplementary light, multiple supplementary light sources 132 are provided in the embodiment of the present application. The multiple supplementary light sources 132 are arranged at intervals along the circumference of the camera 12. The included angle between two adjacent supplementary light sources 132 can be the same or different.

[0063] It is understandable that the light guide member 131 is not limited to being circular. In other embodiments, the outer ring of the annular light guide member 131 can also be rectangular, triangular, elliptical, irregular, etc., and the inner ring can be any one of circular, rectangular, triangular, elliptical, irregular, etc., that is, the outer ring and the inner ring of the annular light guide member 131 can be of the same shape or different shapes, which is not limited herein.

[0064] In other embodiments, the light guide member 131 may not be a continuous annular structure either. For example, please refer to Figure 9 , in another embodiment, the light guide member 131 may include a plurality of sub-light guide members 1311, and the plurality of sub-light guide members 1311 are arranged at intervals to enclose and form a first avoidance opening 131a. Similarly, in order to improve the uniformity of supplementary lighting, one or more supplementary lighting light sources 132 may be provided at one end of each sub-light guide member 1311 away from the object side.

[0065] The supplementary lighting light source 132 in the embodiment of the present application may be any one of an LED (Light Emitting Diode) lamp, a metal halide lamp, a fluorescent lamp, a high-pressure sodium lamp, an incandescent lamp, an iodine tungsten lamp, and a xenon lamp. Exemplarily, in one embodiment, the supplementary lighting light source 132 is an LED lamp, and the LED lamp operates stably, generates low heat, has low energy consumption, and has a long service life.

[0066] Please refer to Figure 3 , the mobile terminal 10 in this embodiment further includes a protective lens 14 and a housing 11 having a receiving cavity 11a. The housing 11 has a second avoidance hole 11b communicating with the receiving cavity 11a. The camera 12 and the supplementary lighting module 13 are both disposed in the receiving cavity 11a, and one end of the camera 12 close to the object side and the light guide member 131 are both located at the second avoidance hole 11b, and the protective lens 14 is disposed in the second avoidance hole 11b. The protective lens 14 mainly serves to protect the camera 12. After the light refracted from multiple light exit surfaces 131d passes through the protective lens 14, it is directed to the field of view of the camera 12. Similarly, the light reflected from the object 20 to be photographed also passes through the protective lens 14 and then enters the camera 12, and finally imaging is achieved.

[0067] Please refer to Figure 4, in another embodiment, the second avoidance hole 11b may further include a first sub-hole 11c and a second sub-hole 11d, and the protective lens 14 includes a first sub-lens 141 and a second sub-lens 142. The second sub-hole 11d surrounds the circumferential side of the first sub-hole 11c. One end of the camera 12 close to the object side is located at the first sub-hole 11c, and the light guide member 131 is located at the second sub-hole 11d. The first sub-lens 141 is disposed in the first sub-hole 11c, and the second sub-lens 142 is disposed in the second sub-hole 11d. The opening gap of the second sub-hole 11d may be 1 to 3 mm, and the gap between the second sub-hole 11d and the first sub-hole 11c may be 0.5 to 2 mm. That is to say, the light refracted from the plurality of light-emitting surfaces 131d passes through the second sub-lens 142 and then is guided to the field of view of the camera 12, and the light reflected from the object 20 to be photographed enters the camera 12 after passing through the first sub-lens 141, and finally imaging is achieved.

[0068] Further, in one embodiment, one end of the camera 12 close to the object side can be disposed through the first avoidance opening, thereby enabling the camera 12 and the light guide member 131 to be more compactly arranged in the accommodation cavity 11a of the mobile terminal 10 to save the internal space of the mobile terminal 10. Please refer to Figure 5 , in another embodiment, the light guide member 131 is disposed at one end of the camera 12 close to the object side, and the camera 12 is located outside the first avoidance opening 131a, that is, one end of the camera 12 close to the object side is not disposed through the first avoidance opening 131a, thereby reducing the opening size of the second avoidance hole 11b on the housing 11.

[0069] Please refer to Figures 3 to 7 , the light guide member 131 of the present embodiment has an installation space 131f disposed on the circumferential side of the first avoidance opening 131a, and the supplementary light source 132 is disposed in the installation space 131f.

[0070] Specifically, please refer to Figure 3 , a part of the end surface of the light guide member 131 of the embodiment of the present application far from the object side is recessed toward the object side to form the installation space 131f. Please refer to Figure 6 , in another embodiment, a part of the side wall of the light guide member 131 far from the optical axis A may also be recessed toward the optical axis A to form the installation space 131f, and the supplementary light source 132 is disposed in the installation space 131f of the light guide member 131, which is not only convenient for light guiding, but also enables the overall structure of the supplementary light module 13 to be more compact.

[0071] It can be understood that in other embodiments, the supplementary light source 132 may also be disposed outside the light guide member 131.

[0072] In addition, since the light guide member 131 is made of a light-transmitting material, to prevent users from seeing the internal structure of the mobile terminal 10 through the light guide member 131, please refer to Figures 3 to 7 , the end face of the light guide member 131 away from the object side can be set as a non-light-transmitting surface 131e. For example, the end face of the light guide member 131 away from the object side can be atomized to achieve a frosted effect.

[0073] It should be noted that setting the end face of the light guide member 131 away from the object side as the non-light-transmitting surface 131e is mainly for the case where this end face is not used as the light incident surface of the supplementary light source 132. For example, for the structural form in which the supplementary light source 132 is arranged in the installation space 131f of the light guide member 131 adopted in this embodiment, the end face of the light guide member 131 away from the object side can be set as the non-light-transmitting surface 131e. However, when the supplementary light source 132 is arranged outside the light guide member 131 and this end face is used as the light incident surface of the supplementary light source 132, this end face cannot be entirely set as the non-light-transmitting surface 131e, and at least the area used as the light incident surface on this end face cannot be set as a non-light-transmitting area.

[0074] In other embodiments, the side wall of the light guide member 131 away from the optical axis A can also be set as a non-light-transmitting surface.

[0075] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mobile terminal, characterized in that, Comprising: A camera; A supplementary light module, the supplementary light module including a supplementary light source and a light guide member having a first avoidance opening; A plane perpendicular to the optical axis of the camera is a projection plane, and the projection of the end face of the camera near the object side on the projection plane is located within the projection of the first avoidance opening on the projection plane; one end of the light guide member near the object side has a plurality of protruding portions arranged at intervals, each protruding portion including a reflection surface and a light-emitting surface corresponding to the reflection surface, the light of the supplementary light source enters the light guide member, the reflection surface reflects a part of the light of the supplementary light source to the corresponding light-emitting surface, and is directed to the field of view of the camera by refraction occurring on the corresponding light-emitting surface, so that the plurality of protruding portions direct the light of the supplementary light source from the circumferential side of the camera to the object to be photographed.

2. The mobile terminal according to claim 1, characterized in that The reflection surfaces of the plurality of protruding portions are arranged in parallel at intervals, and the angle between the reflection surface and the light-emitting surface of one protruding portion is the same as the angle between the reflection surface and the light-emitting surface of another protruding portion.

3. The mobile terminal according to claim 2, wherein The angle between the reflection surface and the light-emitting surface of the same protruding portion ranges from 15° to 45°.

4. The mobile terminal according to claim 1, characterized in that The light-emitting surfaces of the plurality of protruding portions are arranged in parallel at intervals. Among two adjacent protruding portions, the angle between the reflection surface and the light-emitting surface of the protruding portion closer to the optical axis is greater than the angle between the reflection surface and the light-emitting surface of the protruding portion farther from the optical axis; or, The light-emitting surfaces of the plurality of protruding portions are arranged in parallel at intervals. Among two adjacent protruding portions, the angle between the reflection surface and the light-emitting surface of the protruding portion closer to the optical axis is less than the angle between the reflection surface and the light-emitting surface of the protruding portion farther from the optical axis.

5. The mobile terminal according to any one of claims 1-4, characterized in that, The light-emitting surface is perpendicular to the projection plane; or, the light-emitting surface is inclined with respect to the projection plane.

6. The mobile terminal according to any one of claims 1-4, characterized in that, One end of the camera near the object side is inserted into the first avoidance opening; or, the light guide member is arranged at one end of the camera near the object side, and the camera is located outside the first avoidance opening.

7. The mobile terminal according to any one of claims 1 to 4, characterized in that The light guide member includes a plurality of sub-light guide members, and the plurality of sub-light guide members are arranged at intervals to enclose and form the first avoidance opening.

8. The mobile terminal according to any one of claims 1-4, characterized in that, The number of the supplementary light sources is multiple, and the multiple supplementary light sources are arranged at intervals along the circumference of the camera.

9. The mobile terminal according to any one of claims 1-4, characterized in that, The light guide member has an installation space provided on the periphery of the first avoidance opening, and the supplementary light source is arranged in the installation space.

10. The mobile terminal according to any one of claims 1-4, characterized in that, The mobile terminal further includes a protective lens and a housing having an accommodation cavity, and the housing has a second avoidance hole communicating with the accommodation cavity; The camera and the supplementary light module are both arranged in the accommodation cavity, and one end of the camera near the object side and the light guide member are both located at the second avoidance hole, and the protective lens is arranged in the second avoidance hole.

11. The mobile terminal according to claim 10, wherein The second avoidance hole includes a first sub-hole and a second sub-hole, and the protective lens includes a first sub-lens and a second sub-lens; The second sub-hole surrounds the first sub-hole on the periphery, one end of the camera near the object side is located at the first sub-hole, and the light guide member is located at the second sub-hole; The first sub-lens is disposed in the first sub-hole, and the second sub-lens is disposed in the second sub-hole.

12. The mobile terminal according to any one of claims 1-4, characterized in that, The end face of the light guide member away from the object side is a non-light-transmitting surface.

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