WO2021232911A1

WO2021232911A1 - Mobile terminal

Info

Publication number: WO2021232911A1
Application number: PCT/CN2021/081250
Authority: WO
Inventors: 陈嘉伟
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-05-22
Filing date: 2021-03-17
Publication date: 2021-11-25

Abstract

Embodiments of the present application provide a mobile terminal, comprising a camera and a light supplement module. The light supplement module comprises a light supplement light source, and a light guide member having a first receiving port. A plane perpendicular to an optical axis of the camera is a projection plane. The projection of the end face of the end of the camera close to an object side on the projection plane is located in the projection of the first receiving port on the projection plane. The end of the light guide member close to the object side has a plurality of protrusions provided at intervals. Each of the protrusions comprises a reflective surface and a light exit surface corresponding to the reflective surface. Light rays of the light supplement light source enter the light guide member. Some of the light rays of the light supplement light source are reflected to the corresponding light exit surface by the reflective surface and are guided to a field of view of the camera by means of the corresponding light exit surface. The mobile terminal of the embodiments of the present application can provide sufficient lighting for a field of view of a camera in a close-range photographing mode, and thus can clearly photograph an object to be photographed in the field of view.

Description

Mobile terminal

Cross-references to related applications

This application is based on the Chinese patent application with the application number 202010444229.X, the application date is May 22, 2020 and 202020878497.8, the application date is May 22, 2020, and the priority of the above-mentioned Chinese patent application is requested. The above-mentioned Chinese patent The entire content of the application is hereby incorporated into this application as a reference.

Technical field

This application relates to the field of imaging technology, and in particular to a mobile terminal.

Background technique

In order to meet the different camera needs of users, a variety of cameras with different functions have appeared on mobile terminals, such as macro cameras, super macro cameras, wide-angle cameras, telephoto cameras, and so on. The macro camera can be used for close macro shooting, and the super macro camera can be used for super macro shooting.

In related technologies, the flash used to fill light is far away from the camera. When performing close macro or super macro shooting, the distance between the functional camera and the subject is generally only a few centimeters or even a few millimeters. The illuminance in the field of view is obviously insufficient, and the subject in the field of view cannot be photographed clearly.

Summary of the invention

In view of this, the embodiments of the present application expect to provide a mobile terminal that can provide sufficient illumination for the field of view in the close-range shooting mode.

To achieve the foregoing objective, an embodiment of the present application provides a mobile terminal, including:

Camera;

A light-filling module, the light-filling module includes a light-filling light source, and a light guide with a first escape port; a plane perpendicular to the optical axis of the camera is a projection surface, and the camera is close to the end surface of the object side The projection on the projection surface is located in the projection of the first relief opening on the projection surface; the end of the light guide near the object side has a plurality of convex portions arranged at intervals, and each convex The rising portion includes a reflective surface and a light-emitting surface corresponding to the reflective surface. The light from the supplemental light source enters the light guide, and the reflective surface reflects a part of the light from the supplemental light source to the corresponding The light-emitting surface is guided to the field of view of the camera through the corresponding light-emitting surface.

Further, the reflecting surfaces of a plurality of the protrusions are arranged in parallel and spaced apart, and the angle between the reflecting surface of one of the protrusions and the light-emitting surface is equal to that of the other protrusion. The angle between the reflecting surface and the light emitting surface is the same.

Further, the included angle between the reflective surface and the light emitting surface of the same convex portion ranges from 15° to 45°.

Further, the light-emitting surfaces of a plurality of the protrusions are arranged in parallel and spaced apart, and among the two adjacent protrusions, the reflective surface and the light-emitting surface of the protrusions that are close to the optical axis are The included angle therebetween is greater than the included angle between the reflective surface of the convex portion far away from the optical axis and the light-emitting surface; or,

The light-emitting surfaces of the plurality of protrusions are arranged in parallel and spaced apart. Among the two adjacent protrusions, the light-emitting surface of the protrusion near the optical axis is between the reflective surface and the light-emitting surface. The included angle is smaller than the included angle between the reflective surface and the light-emitting surface of the convex portion away from the optical axis.

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

Further, the end of the camera close to the object side is inserted in the first avoidance opening; or, the light guide is arranged at the end of the camera close to the object side, and the camera is located at the first avoidance opening Outside.

Further, the light guide includes a plurality of sub light guides, and the plurality of sub light guides are arranged at intervals to form the first escape opening.

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 functional camera.

Further, the light guide has an installation space provided on a peripheral side of the first escape opening, and the supplemental light source is provided in the installation space.

Further, the mobile terminal further includes a protective lens, and a housing with an accommodation cavity, and the housing has a second escape hole communicating with the accommodation cavity;

The camera and the light supplement module are both arranged in the accommodating cavity, and the end of the camera close to the object side and the light guide are both located at the second escape hole, and the protective lens is arranged at The second escape hole.

Further, the second escape 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 is surrounded by the peripheral side of the first sub-hole, the end of the camera close to the object side is located at the first sub-hole, and the light guide 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.

Further, the end surface of the light guide member far away from the object side is a non-transparent surface.

The embodiment of the present application provides a mobile terminal. By arranging a plurality of protrusions with a reflective surface and a light emitting surface at intervals on the end of the light guide near the object side, the light source can be supplemented from the peripheral side of the camera through the protrusions. The light is guided to the subject, thus, as much light as possible can be guided to the field of view of the camera in the limited structural space, so that in the close-range shooting mode, sufficient light can be provided for the field of view of the camera, and then , You can clearly shoot the subject in the field of view.

Description of the drawings

FIG. 1 is a schematic structural diagram of a camera according to an embodiment of the application;

Figure 2 is a schematic diagram of a mobile phone photographing a subject;

FIG. 3 is a partial cross-sectional view of a mobile terminal according to an embodiment of the application, and the continuous arrows in the figure indicate the direction in which a part of the light of the light guide light source propagates;

4 is a partial cross-sectional view of a second type of mobile terminal provided by an embodiment of the application, and the continuous arrows in the figure indicate the direction in which a part of the light of the light guide light source propagates;

FIG. 5 is a partial cross-sectional view of a third type of mobile terminal provided by an embodiment of the application, and the continuous arrows in the figure indicate the direction in which a part of the light of the light guide light source propagates;

FIG. 6 is a schematic structural diagram of a second light supplement module provided by an embodiment of the application;

FIG. 7 is a schematic structural diagram of a third light supplement module provided by an embodiment of the application;

FIG. 8 is a schematic diagram of a part of the external structure of the mobile terminal shown in FIG. 3;

FIG. 9 is a schematic diagram of a part of the external structure of a fourth type of mobile terminal provided by an embodiment of the application.

Detailed ways

The application will be further described in detail below in conjunction with the drawings and specific embodiments.

It should be noted that, in the case of no conflict, the embodiments of the application and the technical features in the embodiments can be combined with each other. The detailed description in the specific implementation should be understood as an explanation of the purpose of the application, and should not be regarded as a reference to the application. Improper restrictions.

Please refer to FIGS. 1 and 2, the camera 12 described in the present application includes a lens 121, a Sensor (image sensor) 122, a PCB board (printed circuit board) 123 and a holder 124. Sensor 122 includes but is not limited to CCD (Charged Coupled Device), CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor). The Sensor 122 is fixed on the PCB board 123, and the holder 124 is arranged on the side of the Sensor 122 close to the subject 20 and connected to the PCB board 123. The holder 124 is provided with a cavity for accommodating the lens 121, and the lens 121 is opposite to the Sensor 122. During the photographing process, the light of the subject 20 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. This is the internal photoelectric effect, and the movable charges are collected and formed The electrical signal undergoes digital-to-analog conversion through an A/D converter, that is, the charge signal is converted into a digital signal, and the digital signal is sent to DSP (Digital Signal Processor) for processing, and finally transmitted to the screen 16 of the terminal device to form The image is displayed, that is, the photograph of the object 20 is realized. Specifically, the structure of the DSP includes an ISP (Image Signal Processor) and a JPEG encoder (JPEG image decoder). Among them, the ISP is the key to determining the smoothness of the image. It is understandable that for CMOS, DSP can be integrated in CMOS. CMOS has the advantages of high integration, low power consumption, and low cost, and is more suitable for mobile phones with limited internal space.

The PCB board 123 may be a rigid board, a flexible board, or a rigid-flex board. When the mobile phone adopts CMOS, CMOS can be applied to any one of hard board, soft board or soft-hard combined board. When the mobile phone adopts CCD, only the soft and hard board can be used, and the price of the soft and hard board is the highest among the above three kinds of boards. Therefore, when the CCD is used, the cost of the mobile phone will be high.

In some embodiments, the camera may be a macro camera capable of macro shooting. The macro camera refers to the optical capability of the lens 121. Under the premise of ensuring that the image of the subject is clear, when the subject is close to the subject A camera that shoots with a larger optical magnification, where the optical magnification refers to the ratio between the imaging height of the sensor and the height of the object.

It should be noted that the magnification that the user feels = optical magnification * screen magnification * digital magnification, optical magnification refers to the ratio of the height of the image on the sensor to the height of the subject, and the screen magnification refers to the screen size and the sensor The ratio of the size, the digital magnification is the ratio of the size of the same part on the screen after the user has artificially enlarged the part of the screen to the size on the screen before the enlargement. Specifically, an example of the magnification principle of the image that the user feels after shooting is illustrated. As shown in FIG. 2, the light reflected on the object 20 reaches the Sensor 122 after passing through the lens 121, and then generates an electrical signal, which passes 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 enlarge the part of the image on the screen 16 as needed. The displayed image is the enlarged screen image 30.

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, and the field of view refers to the two sides of the optical instrument with the lens center of the optical instrument as the vertex, and the maximum range of the measured or photographed object that can pass through the lens center. Angle. FOV is usually used to measure the field of view of a 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 above 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 should be as close as possible to the subject and increase The focal length of the lens 121 is achieved. Among them, the working distance refers to the distance from the subject to the front end of the lens.

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;

When u>2f, the subject will be a reduced and inverted real image on Sensor122;

When u=2f, v=f, that is, the focal length is equal to the image distance, and the subject is a real upside-down image on the Sensor122;

When f<u<2f, the subject will be a magnified upside-down real image on Sensor122;

When u=f, the subject is not imaged on Sensor122;

When u<f, it is a virtual image, and the subject cannot be a real image on Sensor122.

Therefore, when the focal length f does not change, v and u show opposite trends. When u increases, v decreases, and when u decreases, v increases. Since macro shooting is a way of shooting at close range to obtain an enlarged image of the subject, that is, the subject becomes a magnified real image on the Sensor. Therefore, when close-up macro shooting, the object distance u is relatively small, which works The distance is correspondingly smaller. Therefore, in order to meet the need of focusing, the focal length of the lens 121 needs to be smaller to ensure that f<u<2f, and the image distance and the object distance meet the above-mentioned Gaussian imaging formula.

The internationally recognized saying in the photography industry is that shooting with an optical magnification of about 1:1 to 1:4 is macro photography. In some embodiments, the camera may also be a super macro camera capable of super macro shooting. Super macro camera refers to a macro camera that can still achieve focus when the working distance is less than 10mm, that is, the sensor can still image clearly when the working distance is less than 10mm. It should be noted that "less than" in the embodiments of the present application does not include the number. In one embodiment, the ultra-macro range is 3mm-9mm. In other words, when the working distance is 3mm-9mm, the ultra-macro camera can image, and it can image clearly on the Sensor122.

The super macro camera can be a telephoto super macro lens or a wide-angle super macro lens. Exemplarily, the focal length f of the wide-angle super macro lens ranges from 1.3 mm to 2.2 mm, and the FOV is 70° to 78°. Exemplarily, the effective focal length f of the wide-angle super macro lens is 1.335 mm, and the maximum image The high FOV is 77.6 degrees, the f-number is 2.8, and the working distance is 3mm, the image can be clearly imaged. That is to say, the lens 121 can focus on the subject with a working distance of about 3mm.

In the embodiments of the present application, multiple fingers are greater than or equal to two.

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

The mobile terminals in the embodiments of the present application may include terminal devices such as mobile phones, notebook computers, tablet computers, PDAs (Personal Digital Assistant, personal digital assistants), and portable computers. For ease of description, in the embodiments of the present application, the mobile terminal is a mobile phone as an example for description.

An embodiment of the present application provides a mobile terminal. Please refer to FIG. 3. The mobile terminal 10 includes a camera 12 and a light supplement module 13. The light supplement module 13 includes a light supplement light source 132 and a light guide 131 having a first escape opening 131a. The plane perpendicular to the optical axis A of the camera 12 is the projection surface, and the projection of the end surface of the camera 12 close to the object side on the projection surface is located in the projection of the first escape opening 131a on the projection surface. The end of the light guide 131 close to the object side has a plurality of raised portions 131b arranged at intervals. Each raised portion 131b includes a reflective surface 131c and a light emitting surface 131d corresponding to the reflective surface 131c. The light from the light source 132 enters the light guide. 131, the reflecting surface 131c reflects a part of the light of the supplementary 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 supplementary light source 132 can be guided to the camera through the corresponding light-emitting surface 131d 12 field of view. In other words, when shooting, the plurality of protrusions 131b can guide the light from the supplementary light source 132 to the subject 20 from the peripheral side of the camera 12, and the light reflected on the subject 20 passes through the first escape opening 131a Shoot into the camera 12 to achieve imaging.

It should be noted that in practical applications, after the supplementary light source 132 and a small amount of light enter the corresponding protrusion 131b, it will not be projected on the reflective surface 131c of the protrusion 131b, but will be directly projected onto the protrusion 131b. On the light-emitting surface 131d of the rising portion 131b, and directly on the light-emitting surface 131d, guide the field of view of the camera 12 through refraction. However, most of the light guided to the field of view of the camera 12 mainly comes from the reflection of the reflective surface 131c.

In the mobile terminal 10 of the embodiment of the present application, a plurality of protrusions 131b are spaced apart at one end of the light guide 131 close to the object side, and each protrusion 131b is provided with a reflective surface 131c and a light emitting surface corresponding to the reflective surface 131c. The surface 131d can enable the reflective surface 131c to reflect as much light as possible to the light-emitting surface 131d, thus, as much light as possible can be directed to the field of view of the camera 12 in a limited structural space, so that it can be in close proximity In the distance shooting mode, sufficient illumination is provided for the field of view of the camera 12, and further, the object 20 in the field of view can be clearly photographed.

Referring to FIGS. 3 and 6, the reflective surfaces 131c of the plurality of protrusions 131b in this embodiment are arranged in parallel and spaced apart, and the included angle α between the reflective surface 131c of one protrusion 131b and the light emitting surface 131d (see FIG. 6) It is the same as the angle α between the reflective surface 131c of the other protrusion 131b and the light-emitting surface 131d.

Specifically, referring to FIG. 3, each reflective surface 131c may intersect the corresponding light-emitting surface 131d to form a sharp corner at the intersection. Referring to FIG. 6, each reflective surface 131c may not intersect the corresponding light-emitting surface 131d, which is equivalent. The end of each reflecting surface 131c and the corresponding light-emitting surface 131d close to the object side is a flat surface or a curved surface. Optionally, the included angle α between the reflective surface 131c and the light emitting surface 131d of the same protrusion 131b ranges from 15° to 45°.

In this embodiment, the light-emitting surface 131d of each protrusion 131b is perpendicular to the projection surface. In other embodiments, the light-emitting surface 131d of each protrusion 131b may also be arranged obliquely with respect to the projection surface.

Referring to FIG. 7, in another embodiment, the light-emitting surfaces 131d of the plurality of protrusions 131b may be arranged in parallel and spaced apart. Each light-emitting surface 131d may be perpendicular to the projection surface, or may be opposite to the projection surface. Obliquely arranged at the same angle, among the two adjacent protrusions 131b, the angle α between the reflective surface 131c of the protrusion 131b close to the optical axis A and the corresponding light-emitting surface 131d is greater than the protrusion away from the optical axis A The angle α between the reflective surface 131c of the portion 131b and the corresponding light-emitting surface 131d, that is, the reflective surfaces 131c of the plurality of protrusions 131b are not parallel, and move from the direction close to the optical axis A to away from the optical axis In the direction of A, the angle α between the reflective surface 131c and the corresponding light-emitting surface 131d gradually becomes smaller, so that the light guiding effect can be further improved. In other embodiments, in two adjacent reflective surfaces 131c, the angle α between the reflective surface 131c close to the optical axis A and the corresponding light-emitting surface 131d is smaller than that between the reflective surface 131c far away from the optical axis A and the corresponding reflective surface 131c. The angle α between the light-emitting surfaces 131d.

Referring to FIG. 8, the light guide 131 of the embodiment of the present application is a continuous ring structure. Specifically, the light guide 131 of the embodiment of the present application is a circular ring. In order to improve the uniformity of the supplementary light, the embodiment of the present application is provided with a plurality of supplementary light sources 132, and the plurality of supplementary light sources 132 are arranged at intervals along the circumferential direction of the camera 12. The angle size can be the same or different.

It can be understood that the light guide 131 is not limited to a circular ring shape. In other embodiments, the outer ring of the ring-shaped light guide 131 may also be rectangular, triangular, elliptical, irregular, etc., and the inner ring may be Any one of circular, rectangular, triangular, elliptical, special shape, etc., that is, the outer ring and inner ring of the ring-shaped light guide 131 can be the same shape or different shapes, which is not limited here.

In other embodiments, the light guide 131 may not be a continuous ring structure. For example, please refer to FIG. 9. In another embodiment, the light guide 131 may include a plurality of sub-light guides 1311. The light guides 1311 are arranged at intervals to form the first escape opening 131a by surrounding them. Similarly, in order to improve the uniformity of the supplementary light, one or more supplementary light sources 132 can be provided at the end of each sub-light guide 1311 away from the object side.

The supplemental light source 132 in the embodiment of the present application may be any of LED (Light Emitting Diode) lamps, metal halide lamps, fluorescent lamps, high pressure sodium, incandescent lamps, iodine tungsten lamps, and xenon lamps. Illustratively, in one embodiment, the supplemental light source 132 is an LED lamp, which has stable operation, low heat generation, low energy consumption, and long service life.

Referring to FIG. 3, the mobile terminal 10 of this embodiment further includes a protective lens 14 and a housing 11 having a receiving cavity 11a. The housing 11 has a second escape hole 11b communicating with the receiving cavity 11a. The camera 12 and the light supplement module 13 are both arranged in the accommodating cavity 11a, and the end of the camera 12 close to the object side and the light guide 131 are both located at the second avoiding hole 11b, and the protective lens 14 is arranged in the second avoiding hole 11b. The protective lens 14 mainly plays a role in protecting the camera 12. The light refracted from the multiple light-emitting surfaces 131d passes through the protective lens 14 and is guided to the field of view of the functional camera 12. Similarly, the light reflected on the object 20 The light also enters the camera 12 after passing through the protective lens 14, and finally achieves imaging.

Referring to FIG. 4, in another embodiment, the second escape hole 11 b may further include a first sub-hole 11 c and a second sub-hole 11 d, and the protective lens 14 includes a first sub-lens 141 and a second sub-lens 142. The second sub-hole 11d is arranged on the peripheral side of the first sub-hole 11c, the end of the camera 12 close to the object side is located at the first sub-hole 11c, and the light guide 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 0.5-2 mm, that is, the light refracted from the multiple light-emitting surfaces 131d After passing through the second sub-lens 142, it is directed to the field of view of the functional camera 12, and the light reflected on the subject 20 passes through the first sub-lens 141 and then enters the camera 12, and finally imaging is realized.

Further, in an embodiment, the end of the camera 12 close to the object side can be inserted into the first escape opening, so that the camera 12 and the light guide 131 can be arranged in the accommodating cavity 11a of the mobile terminal 10. It is more compact to save the internal space of the mobile terminal 10. Referring to FIG. 5, in another embodiment, the light guide 131 is disposed at an end of the camera 12 close to the object side, and the camera 12 is located outside the first escape opening 131a, that is, the end of the camera 12 close to the object side It is not penetrated in the first escape opening 131a, thus, the opening size of the second escape hole 11b on the housing 11 can be reduced.

Referring to FIGS. 3 to 7, the light guide 131 of this embodiment has an installation space 131f provided on the peripheral side of the first escape opening 131a, and the supplemental light source 132 is provided in the installation space 131f.

Specifically, referring to FIG. 3, a part of the end surface of the light guide 131 at the end away from the object side of the embodiment of the present application is recessed toward the direction closer to the object side to form an installation space 131f. Please refer to FIG. 6, in another embodiment Alternatively, a part of the sidewall of the light guide 131 on the side away from the optical axis A may be recessed toward the direction close to the optical axis A to form an installation space 131f. The supplementary light source 132 is arranged in the installation space 131f of the light guide 131. It is convenient to guide light, and can also make the overall structure of the light supplement module 13 more compact.

It can be understood that, in other embodiments, the supplemental light source 132 may also be disposed outside the light guide 131.

In addition, since the light guide 131 is made of a light-transmitting material, in order to prevent the user from seeing the internal structure of the mobile terminal 10 through the light guide 131, referring to FIGS. 3 to 7, the light guide 131 can be moved away from the object side end. The end surface of is set as a non-transmissive surface 131e. For example, the end surface of the light guide 131 at the end away from the object side can be atomized to achieve a frosting effect.

It should be noted that setting the end surface of the end of the light guide 131 away from the object side as a non-transmissive surface 131e is mainly for the end surface not serving as the light incident surface of the light source 132, for example, for the light incident surface used in this embodiment In terms of the structure in which the supplementary light source 132 is arranged in the installation space 131f of the light guide 131, the end surface of the light guide 131 far away from the object side can be set as a non-transparent surface 131e, but when the supplementary light source 132 is arranged When the end surface of the light guide 131 is used as the light incident surface of the supplementary light source 132, the end surface cannot be set as a non-transmissive surface 131e, and at least the area used as the light incident surface of the end surface cannot be set as non-transmissive. Light zone.

In other embodiments, the side wall on the side of the light guide 131 away from the optical axis A can also be set as a non-transparent surface.

The foregoing are only preferred embodiments of the application, and are not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A mobile terminal, including:

Camera;

A light-filling module, the light-filling module includes a light-filling light source, and a light guide with a first escape port; a plane perpendicular to the optical axis of the camera is a projection surface, and the camera is close to the end surface of the object side The projection on the projection surface is located in the projection of the first relief opening on the projection surface; the end of the light guide near the object side has a plurality of convex portions arranged at intervals, and each convex The rising portion includes a reflective surface and a light-emitting surface corresponding to the reflective surface. The light from the supplemental light source enters the light guide, and the reflective surface reflects a part of the light from the supplemental light source to the corresponding The light-emitting surface is guided to the field of view of the camera through the corresponding light-emitting surface.
The mobile terminal according to claim 1, wherein the reflecting surfaces of a plurality of the protrusions are arranged in parallel and spaced apart, and the angle between the reflecting surface of one of the protrusions and the light-emitting surface is the same as that of the other The angle between the reflective surface and the light-emitting surface of the protrusion is the same.
The mobile terminal according to claim 2, wherein the angle between the reflective surface and the light-emitting surface of the same convex portion ranges from 15° to 45°.
The mobile terminal according to claim 1, wherein the light-emitting surfaces of a plurality of the protrusions are arranged in parallel and spaced apart, and among the two adjacent protrusions, the protrusions close to the optical axis are The included angle between the reflective surface and the light-emitting surface is greater than the included angle between the reflective surface and the light-emitting surface of the protrusion that is far from the optical axis; or,

The light-emitting surfaces of the plurality of protrusions are arranged in parallel and spaced apart. Among the two adjacent protrusions, the light-emitting surface of the protrusion near the optical axis is between the reflective surface and the light-emitting surface. The included angle is smaller than the included angle between the reflective surface and the light-emitting surface of the convex portion away from the optical axis.
The mobile terminal according to any one of claims 1 to 4, wherein the light-emitting surface is perpendicular to the projection surface; or, the light-emitting surface is arranged obliquely with respect to the projection surface.
The mobile terminal according to any one of claims 1 to 4, the end of the camera close to the object side is inserted in the first escape opening; or, the light guide is disposed at the end of the camera close to the object side , And the camera is located outside the first avoidance opening.
The mobile terminal according to any one of claims 1 to 4, wherein the light guide includes a plurality of sub-light guides, and the plurality of sub-light guides are arranged at intervals to form the first escape opening.
The mobile terminal according to any one of claims 1 to 4, wherein 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 functional camera.
The mobile terminal according to any one of claims 1 to 4, wherein the light guide has an installation space provided on a peripheral side of the first escape opening, and the supplemental light source is provided in the installation space.
The mobile terminal according to any one of claims 1 to 4, the mobile terminal further comprising a protective lens, and a housing with a containing cavity, the housing having a second escape hole communicating with the containing cavity;

The camera and the light supplement module are both arranged in the accommodating cavity, and the end of the camera close to the object side and the light guide are both located at the second escape hole, and the protective lens is arranged at The second escape hole.
The mobile terminal according to claim 10, wherein the second escape 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 is surrounded by the peripheral side of the first sub-hole, the end of the camera close to the object side is located at the first sub-hole, and the light guide 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.
The mobile terminal according to any one of claims 1 to 4, wherein the end surface of the light guide member far away from the object side is a non-transparent surface.