Light supplement lamp module and electronic equipment

Abstract

The invention discloses a light supplement lamp module and electronic equipment. The light supplement lamp module comprises a light source and a light guide part. The light source comprises a substrate and a light-emitting part, and the light-emitting part is arranged on the substrate; the light guide part is arranged on the light emitting side of the light emitting part and provided with a first surface and a second surface, the first surface is close to the substrate, the second surface is far away from the substrate, the first surface is provided with a light inlet part, the second surface is provided with a light emitting part and a reflection part, and a preset included angle is formed between the reflection part and the plate face of the substrate. The projection of the reflecting part covers the light-emitting part, so that the problem of glare caused by direct emission of the light-emitting part can be avoided; moreover, the light emitted by the light-emitting part is transmitted to the reflecting part from the light-in part, is reflected into the light guide part through the reflecting part, and then is emitted out through the light-out part, so that the problem that the shooting effect is affected due to overexposure of a scene can be avoided, and meanwhile, the probability that eyes of a user feel uncomfortable due to glare can also be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a fill light module and electronic equipment. Background Art

[0002] With the rapid development of electronic device technology, users' demands for better photography performance are also increasing. Fill lights are a crucial auxiliary tool during photography. In low-light scenarios, the instantaneous flash of a fill light can be used to illuminate the scene and enhance the shooting effect. However, the severe glare caused by the instantaneous flash of a fill light can not only cause overexposure and affect the shooting effect, but can also cause eye discomfort. Summary of the Invention

[0003] The present application discloses a fill light module and an electronic device to solve the serious glare problem of fill lights in related technologies.

[0004] In order to solve the above technical problems, this application is implemented as follows: In a first aspect, an embodiment of the present application discloses a fill light module, wherein the disclosed fill light module includes a light source and a light guide; The light source includes a substrate and a light-emitting portion, wherein the light-emitting portion is provided on the substrate; The light guide is provided on the light emitting side of the light emitting portion, the light guide having a first surface and a second surface, the first surface being close to the substrate and the second surface being away from the substrate, the first surface being provided with a light incident portion, the second surface being provided with a light emitting portion and a reflecting portion, the reflecting portion forming a preset angle with the plate surface of the substrate, and in a first direction, a projection of the reflecting portion covers the light emitting portion, wherein the first direction is perpendicular to the plate surface of the substrate; When the fill light module is in an on state, the light emitted by the light emitting portion is transmitted from the light incident portion to the reflective portion, and is reflected by the reflective portion into the light guide component before being emitted from the light emitting portion.

[0005] In a second aspect, an embodiment of the present application discloses an electronic device, comprising a device body and the fill light module of the first aspect; The device body includes a camera module, and the fill light module is arranged on the device body. The fill light module includes at least two light guides, and the light guides are arc-shaped, and the ends of at least two light guides are close to each other to form a ring structure. The ring structure is arranged around the outside of the camera module.

[0006] The technical solution adopted in this application can achieve the following technical effects: The fill light module disclosed in the embodiment of the present application improves the relevant technology. By arranging a light guide on the light-emitting side of the light-emitting part, the reflective part of the light guide can cover the light-emitting part, thereby realizing the hidden installation of the light-emitting part and avoiding the glare problem caused by direct emission of the light-emitting part. When the fill light module is in the on state, the light emitted by the light-emitting part can be transmitted from the light-incident part to the reflective part, and the reflective part can reflect the light to the inside of the light guide. Since the light is further reflected multiple times by the inner wall and other structures of the light guide inside the light guide, the light emitted from the light-emitting part is more uniform and soft, thereby avoiding the problem of overexposure of the scene affecting the shooting effect, and also reducing the probability of user eye discomfort caused by glare. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic structural diagram of the fill light module disclosed in the embodiment of this application; Figure 2 This is an exploded view of the fill light module disclosed in the embodiment of this application; Figure 3 A schematic diagram of the light path of the fill light module disclosed in the embodiment of this application; Figure 4 A schematic diagram of the structure of a light source disclosed in an embodiment of the present application; Figure 5 This is one of the structural schematic diagrams of the light guide disclosed in the embodiment of this application; Figure 6 This is the second structural diagram of the light guide disclosed in the embodiment of this application; Figure 7 This is the third structural diagram of the light guide disclosed in the embodiment of this application; Figure 8 A schematic diagram of the partial structure of the fill light module disclosed in the embodiment of this application; Figure 9 A cross-sectional view of the fill light module disclosed in an embodiment of the present application; Figure 10 A cross-sectional view of the light guide disclosed in an embodiment of the present application; Figure 11 A schematic structural diagram of a prism disclosed in an embodiment of the present application; Figure 12 This is a schematic diagram of the assembly of the camera module and the fill light module disclosed in the embodiment of this application.

[0008] Description of reference numerals: 100-fill light module, 101-first direction, 110-light source, 111-substrate, 112-light emitting portion, 120-light guide, 121-first surface, 1211-light incident portion, 1212-compensation portion, 122-second surface, 1221-light emitting portion, 1222-reflection portion, 1223-microstructure array, 123-side, 130-diffuse reflection structure, 131-arc surface reflection portion, 140-transparent cover, 200-Camera module. DETAILED DESCRIPTION

[0009] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0010] The terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequential sequence. It should be understood that the numerals used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0011] The technical solutions disclosed in various embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0012] Please refer to Figures 1 to 12The present invention discloses a fill light module 100 for use in devices with camera functions, such as mobile phones, tablets, and smart watches. The fill light module 100 may include a light source 110 and a light guide 120. The light source 110 may include a substrate 111 and a light-emitting unit 112. The light-emitting unit 112 is disposed on the substrate 111, serving as a mounting base for the light-emitting unit 112. The connection between the light-emitting unit 112 and the substrate 111 may be welding, conductive bonding, or other methods. The substrate 111 also controls the light-emitting unit 112. For example, the substrate 111 can control the on / off timing of the light-emitting unit 112 and parameters such as its brightness. The substrate 111 may be a printed circuit board (PCB) or a flexible printed circuit (FPC). The light-emitting unit 112 may be an LED (light-emitting diode), a halogen lamp, or other similar devices.

[0013] Light guide 120 is located on the light-emitting side of light-emitting portion 112. With reference to substrate 111, the light-emitting side of light-emitting portion 112 is the side of light-emitting portion 112 facing away from substrate 111. Light guide 120 primarily guides light emitted by light-emitting portion 112, allowing the point light source emitted by light-emitting portion 112 to undergo multiple reflections within light guide 120 and be emitted as a surface light source, resulting in a softer and more uniform light output. Light guide 120 can be formed by injection molding using optical plastics such as PC (Polycarbonate) and PMMA (Polymethyl Methacrylate).

[0014] like Figure 2 and Figure 3 As shown, the light guide 120 has a first surface 121 and a second surface 122. With reference to the substrate 111, the first surface 121 of the light guide 120 is close to the substrate 111, and the second surface 122 of the light guide 120 is away from the substrate 111. The first surface 121 of the light guide 120 is provided with a light input portion 1211, and the second surface 122 of the light guide 120 is provided with a light output portion 1221 and a reflective portion 1222. The light input portion 1211 and the light output portion 1221 allow light to pass through. Light emitted by the light emitting portion 112 can be incident on the light input portion 1211 into the light guide 120 and ultimately emitted through the light output portion 1221. The reflecting portion 1222 has a reflecting surface for reflecting light. The reflecting portion 1222 can be arranged close to the end of the light guide 120, and the reflecting portion 1222 faces the light incident portion 1211. In other words, the reflecting surface of the reflecting portion 1222 faces the light incident portion 1211 and can reflect the light entering from the light incident portion 1211.

[0015] The reflective portion 1222 can be formed by coating a reflective film on the end of the light guide 120, or by silver plating on the end of the light guide 120, such as Figure 9 As shown, the reflective portion 1222 forms a preset angle θ with the surface of the substrate 111. The preset angle θ can range from 30° to 60°, and specifically can be 30°, 40°, 45°, 50°, 60°, etc. A direction perpendicular to the surface of the substrate 111 can be defined as a first direction 101. In the first direction 101, the projection of the reflective portion 1222 covers the light-emitting portion 112. In other words, the shielding effect of the reflective portion 1222 can achieve a concealed installation of the light-emitting portion 112, so that the light emitted by the light-emitting portion 112 does not form direct light.

[0016] Combine Figure 3 As shown, Figure 3 The black arrow in the figure shows the optical path diagram of the light-emitting portion 112. When the fill light module 100 is in the on state, the light emitted by the light-emitting portion 112 can be transmitted from the light incident portion 1211 of the light guide 120 to the reflective portion 1222, and then reflected by the reflective portion 1222 into the interior of the light guide 120. Inside the light guide 120, the light can be reflected multiple times by the inner wall of the light guide 120, and finally emitted through the light emitting portion 1221. It should be noted that in the process of the reflective portion 1222 reflecting the light, a small portion of the light will be directly emitted from the light emitting portion 1221 of the light guide 120 after a single reflection by the reflective portion 1222, and the remaining light will be further reflected by the inner wall of the light guide 120 and then emitted from the light emitting portion 1221.

[0017] During actual installation, the light guide 120 can be fixed to the substrate 111 by bonding, and the light guide 120 can also be fixed by a mounting bracket inside the electronic device, which is not limited in the embodiment of the present application.

[0018] Please refer to Figure 8 and Figure 9 Taking the light-emitting portion 112 as a reference, the side length a of the light-emitting portion 112 can be 2 mm. Therefore, the width b of the light guide 120 can be greater than or equal to 2 mm, and the length c of the reflective portion 1222 can be greater than or equal to 2 mm, thereby fully covering the light-emitting portion 112. The thickness d of the light guide 120 can be greater than or equal to 2 mm, and can be specifically set according to the inclination angle of the reflective portion 1222.

[0019] From the above, it can be seen that the fill light module 100 disclosed in the embodiment of the present application improves the relevant technology. By arranging a light guide 120 on the light-emitting side of the light-emitting part 112, the reflecting part 1222 of the light guide 120 can cover the light-emitting part 112, thereby realizing the hidden installation of the light-emitting part 112, avoiding the glare problem caused by direct emission of the light-emitting part 112; when the fill light module 100 is in the on state, the light emitted by the light-emitting part 112 can be transmitted from the light input part 1211 to the reflecting part 1222, and the reflecting part 1222 can reflect the light to the interior of the light guide 120. Since the light inside the light guide 120 will be further reflected multiple times through the inner wall and other structures of the light guide 120, the light emitted from the light-emitting part 1221 is more uniform and soft, thereby avoiding the problem of overexposure of the scene affecting the shooting effect, and at the same time reducing the probability of user eye discomfort caused by glare.

[0020] In order to improve the fill light efficiency of the fill light module 100, the above-mentioned light source 110 may include at least two light-emitting parts 112, and the at least two light-emitting parts 112 are spaced apart on the substrate 111. Correspondingly, the fill light module 100 may include at least two light guides 120, and the light-emitting parts 112 and the light guides 120 may be arranged in a one-to-one correspondence. In the first direction 101, the projection formed by the light guide 120 on the substrate 111 may be an arc. During actual assembly, the ends of at least two light guides 120 are close to each other, thereby forming a ring structure. Splicing at least two light guides 120 into the above-mentioned ring structure can, on the one hand, increase the illumination area of the fill light module 100 and improve the shooting effect to a certain extent; on the other hand, it can improve the aesthetics of the fill light module 100.

[0021] The number of the light emitting portion 112 and the light guide 120 can be two, three or more. In an optional embodiment of the present application, Figure 4 and Figure 5 As shown, the number of light-emitting units 112 and light guides 120 can be four, the substrate 111 can be annular in shape, the four light-emitting units 112 are spaced apart along the circumference of the substrate 111, and the light guide 120 can be a quarter circle. The four light guides 120 are sequentially connected end to end to form the aforementioned annular structure. With this design, since the circumferential span of the light guide 120 is relatively small, the light emitted by the light-emitting units 112 can be fully reflected by the reflective unit 1222 into the interior of the light guide 120, thus avoiding the problem of uneven brightness on the light guide 120.

[0022] Considering that the light-emitting portion 112 is blocked by the reflective portion 1222, a dark spot will appear on the light guide 120 in the area above the reflective portion 1222, which will to some extent affect the fill light effect and aesthetics of the fill light module 100. Based on this, the first surface 121 of the light guide 120 is further provided with a compensation portion 1212. The compensation portion 1212 faces the light-emitting portion 1221. When light is emitted from the light guide 120, it will be transmitted to the compensation portion 1212, so that the compensation portion 1212 is also in a state of illumination.

[0023] The light guide 120 has a first end and a second end that are opposite to each other. The reflective portion 1222 may be located at the first end of the light guide 120, and the compensating portion 1212 may be located at the second end of the light guide 120. The compensating portion 1212 is also arranged at an angle to the surface of the substrate 111. The angle between the compensating portion 1212 and the reflective portion 1222 is less than a preset threshold value, which may range from 0° to 10°. When the preset threshold value is 0°, the compensating portion 1212 and the reflective portion 1222 are parallel to each other, thereby preventing interference between the compensating portion 1212 and the reflective portion 1222 when they are spliced together.

[0024] Among the two adjacent light guide members 120, the compensation part 1212 of one light guide member 120 is covered on the reflecting part 1222 of the other light guide member 120, and along the first direction 101, the projection of the compensation part 1212 covers the projection of the reflecting part 1222. That is to say, when the user observes the fill light module 100 in the first direction 101, only the compensation part 1212 can be seen, and the reflecting part 1222 is covered by the compensation part 1212, and the compensation part 1212 is in an illuminated state. Therefore, the dark spot area above the reflecting part 1222 is replaced by the compensation part 1212, which can effectively solve the problem of uneven brightness of the fill light module 100.

[0025] like Figures 3 to 8 As shown, the light guide 120 may further include a side surface 123, which is respectively connected to the first surface 121 and the second surface 122. Taking the arc-shaped light guide 120 as an example, the side surface 123 of the light guide 120 actually includes an inner annular surface and an outer annular surface. The first surface 121 of the light guide 120 can be entirely used as the light entrance portion 1211, or only the area of the first surface 121 corresponding to the light-emitting portion 112 can be used as the light entrance portion 1211. The second surface 122 of the light guide 120 is composed of a light exit portion 1221 and a reflective portion 1222. To ensure the light exit area, the proportion of the light exit portion 1221 in the second surface 122 can be greater than the proportion of the reflective portion 1222 in the second surface 122.

[0026] In order to make the light inside the light guide 120 more uniform and soft, it is necessary to fully reflect the light so that the light can be transmitted to various areas inside the light guide 120. Specifically, the fill light module 100 can also include a diffuse reflection structure 130. At least one of the first surface 121 and the side surface 123 of the light guide 120 can be provided with a diffuse reflection structure 130. The diffuse reflection structure 130 can be a frosted structure or composed of multiple optical lens structures, such as prisms, convex lenses, concave lenses, etc. Figure 3 As shown, the light reflected by the reflecting portion 1222 can be reflected multiple times by the above-mentioned diffuse reflection structure 130 and the first surface 121 and the side surface 123 of the light guide 120, so that the light can be evenly distributed to various areas inside the light guide 120. The diffuse reflection structure 130 can scatter the light, so that the light reflected by the reflecting portion 1222 is scattered by the diffuse reflection structure 130 and then emitted.

[0027] In an optional embodiment of the present application, the diffuse reflection structure 130 may include a plurality of arcuate reflective portions 131, and the arcuate reflective portions 131 may be disposed on the first surface 121 of the light guide 120 or on the side surface 123 of the light guide 120. It should be noted that since the light incident portion 1211 is also disposed on the first surface 121 of the light guide 120, in order to avoid blocking the light emitting portion 112, the arcuate reflective portions 131 may not be disposed on the light incident portion 1211.

[0028] It should be noted that as the propagation distance of light increases from the direction close to the light-emitting portion 112 to the direction away from the light-emitting portion 112, its intensity will decay, which makes it difficult for the light to be fully transmitted to the area away from the light-emitting portion 112, thereby causing the light guide 120 to have a brightness difference between the area close to the light-emitting portion 112 and the area away from the light-emitting portion 112.

[0029] Based on the above problems, the distribution density and diameter of the arc surface reflection portion 131 can be gradually increased from the direction close to the light emitting portion 112 to the direction away from the light emitting portion 112. Specifically, with regard to the distribution density of the arc surface reflection portion 131, in the area of the light guide 120 close to the light emitting portion 112, the distribution density of the arc surface reflection portion 131 is relatively small, so the light emitted from this area through the arc surface reflection portion 131 is relatively small, so most of the light will be further transmitted to the area of the light guide 120 away from the light emitting portion 112, and the light will attenuate during the transmission process. The distribution density of the arc surface reflection portion 131 gradually increases, which will compensate for the problem of light attenuation. Then the light emitted through the arc surface reflection portion 131 will increase accordingly with the increase in distribution density, thereby making the light evenly distributed on the light guide 120.

[0030] The diameter of the arcuate reflective portion 131 affects the light scattering efficiency. The larger the diameter of the arcuate reflective portion 131, the greater the light scattering efficiency. The scattering efficiency can be used to characterize the amount of light emitted through the arcuate reflective portion 131. In the area of the light guide 120 close to the light emitting portion 112, the diameter of the arcuate reflective portion 131 is smaller and the scattering efficiency is lower. Therefore, less light is emitted from this area through the arcuate reflective portion 131. Therefore, most of the light is further transmitted to the area of the light guide 120 away from the light emitting portion 112. The light is attenuated during the transmission process. The gradual increase in the diameter of the arcuate reflective portion 131 can compensate for the light attenuation problem. Therefore, the light emitted through the arcuate reflective portion 131 will increase accordingly as the diameter increases, thereby ensuring that the light is evenly distributed on the light guide 120.

[0031] The above design enables light to be fully transmitted to the area away from the light-emitting portion 112 , thereby reducing the brightness difference of the light guide 120 and improving the lighting uniformity of the fill light module 100 .

[0032] During light propagation, most of the light is emitted from the light exit portion 1221 of the light guide 120, but a small amount of light is still emitted from the first surface 121 and side surface 123 of the light guide 120. This results in light loss, which is not conducive to improving the operating efficiency of the fill light module 100. Based on this, a reflective layer can be provided on at least one of the first surface 121, side surface 123, and substrate surface of the light guide 120, and the substrate 111. The reflective layer can, on the one hand, prevent light from being emitted from the first surface 121 and side surface 123 of the light guide 120, thereby improving light utilization; on the other hand, the reflective layer can also increase the number of light reflections within the light guide 120, making the light distribution within the light guide 120 more uniform.

[0033] The reflective layer can be formed by applying a reflective film or by silver plating. It should be noted that when the reflective layer is provided on the first surface 121 of the light guide 120, an area for the light input and output portion 1211 must be reserved to avoid affecting the light propagation of the light emitting portion 112. In addition, since the first surface 121 of the light guide 120 and the plate surface of the substrate 111 are close to each other, when providing the reflective layer, either the first surface 121 of the light guide 120 or the plate surface of the substrate 111 can be used.

[0034] In order to ensure that light can be emitted from the light emitting portion 1221 of the light guide 120 at a suitable angle so that the fill light module 100 has a suitable illumination range, a microstructure array 1223 can be provided on the surface of the light emitting portion 1221 of the light guide 120. The microstructure array 1223 can adjust the emission angle of the light emitted from the light emitting portion 1221. In an optional embodiment of the present application, the microstructure array 1223 can include at least one of a lens, a prism, a pit, and a convex point, or a combination thereof. For example, Figure 11 As shown, a plurality of prisms may be provided on the surface of the light emitting portion 1221 , and the plurality of prisms may be arranged in sequence along a preset direction, which may be the radial direction of the annular structure formed by splicing the plurality of light guide members 120 .

[0035] like Figure 11 As shown, the angle γ between the two side surfaces of the prism can range from 45° to 135°, and the angle γ can specifically be 45°, 60°, 85°, 90°, 135°, etc. It should be noted that the prism mainly affects the light output intensity of the fill light module 100. The smaller the prism angle, the smaller the light output angle, and the higher the frontal light intensity; the larger the prism angle, the larger the light output angle, and the smaller the frontal light intensity.

[0036] like Figure 1 and Figure 2 As shown, the fill light module 100 may further include a translucent cover plate 140, which covers the light exit portion 1221 of the light guide 120. The translucent cover plate 140 may be made of a transparent material such as glass or plastic to provide protection. The lens may be attached to the light guide 120 or to the housing of the electronic device. To soften the light emitted by the fill light module 100, the translucent cover plate 140 may be frosted. Specifically, a frosted layer may be formed on the surface of the translucent cover plate 140 facing away from the light guide 120 using a sandblasting or micro-etching process.

[0037] Please refer to Figures 1 to 12 This application also discloses an electronic device, which can be a mobile phone, tablet computer, laptop computer, wearable device, vehicle-mounted device, etc. The embodiments of this application do not limit the specific type of electronic device. The above-mentioned electronic device can include a device body and the above-mentioned fill light module 100.

[0038] The device body may include a camera module 200, and the fill light module 100 is disposed within the device body. The fill light module 100 includes at least two light guides 120. The light guides 120 are arc-shaped, and the ends of the at least two light guides 120 are close to each other to form a ring structure. The ring structure is disposed around the outside of the camera module 200. The fill light module 100 and the camera module 200 are assembled in the above manner. On the one hand, it can enhance the aesthetics of the electronic device, as the fill light module 100 can serve as a decoration for the camera module 200. On the other hand, because the fill light module 100 is disposed outside the camera module 200, the lighting area of the fill light module 100 and the shooting area of the camera module 200 can be well coordinated, thereby improving the shooting effect.

[0039] From the above description, it can be seen that the electronic device disclosed in the embodiment of the present application adopts the fill light module 100 described above, which improves the relevant technology by arranging a light guide 120 on the light-emitting side of the light-emitting part 112. Since the reflecting part 1222 of the light guide 120 can cover the light-emitting part 112, the light-emitting part 112 can be hidden and installed, avoiding the glare problem caused by the direct emission of the light-emitting part 112; when the fill light module 100 is in the on state, the light emitted by the light-emitting part 112 can be transmitted from the light incident part 1211 to the reflecting part 1222, and the reflecting part 1222 can reflect the light to the interior of the light guide 120. Since the light will be further reflected multiple times through the inner wall and other structures of the light guide 120 inside the light guide 120, the light emitted from the light-emitting part 1221 is more uniform and soft, thereby avoiding the problem of affecting the shooting effect due to overexposure of the scene, and at the same time reducing the probability of user eye discomfort caused by glare.

[0040] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different technical features between the various embodiments are not contradictory, they can be combined to form more specific embodiments. Considering the simplicity of the text, they will not be repeated here.

[0041] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A fill light module, characterized in that: Comprising a light source (110) and a light guide (120); The light source (110) comprises a substrate (111) and a light-emitting portion (112), wherein the light-emitting portion (112) is disposed on the substrate (111); The light guide (120) is provided on the light-emitting side of the light-emitting portion (112), and the light guide (120) has a first surface (121) and a second surface (122), wherein the first surface (121) is close to the substrate (111), and the second surface (122) is away from the substrate (111), the first surface (121) is provided with a light-entering portion (1211), and the second surface (122) is provided with a light-emitting portion (1221) and a reflecting portion (1222), wherein the reflecting portion (1222) forms a preset angle with the plate surface of the substrate (111), and in a first direction (101), the projection of the reflecting portion (1222) covers the light-emitting portion (112), wherein the first direction (101) is perpendicular to the plate surface of the substrate (111); When the fill light module (100) is in an on state, light emitted by the light-emitting portion (112) is transmitted from the light-incoming portion (1211) to the reflecting portion (1222), and is reflected by the reflecting portion (1222) into the interior of the light guide (120) before being emitted from the light-emitting portion (1221).

2. The fill light module according to claim 1, characterized in that: The light source (110) comprises at least two light-emitting portions (112), and the at least two light-emitting portions (112) are arranged at intervals on the substrate (111); The fill light module (100) comprises at least two light guides (120), the light emitting portion (112) and the light guides (120) are arranged correspondingly, the projection of the light guides (120) in the first direction (101) is arc-shaped, and the ends of the at least two light guides (120) are close to each other to form a ring structure.

3. The fill light module according to claim 2, characterized in that: The first surface (121) of the light guide (120) is further provided with a compensation portion (1212), the compensation portion (1212) faces the light exit portion (1221), the reflection portion (1222) is close to the first end of the light guide (120), the compensation portion (1212) is close to the second end of the light guide (120), and an angle between the compensation portion (1212) and the reflection portion (1222) is smaller than a preset threshold value; In two adjacent light guide members (120), the compensation portion (1212) of one of the light guide members (120) is covered on the reflection portion (1222) of the other light guide member (120), and along the first direction (101), the projection of the compensation portion (1212) covers the projection of the reflection portion (1222).

4. The fill light module according to claim 3, characterized in that: The fill light module (100) further includes a diffuse reflection structure (130), and the light guide (120) further includes a side surface (123), wherein the side surface (123) is connected to the first surface (121) and the second surface (122), respectively, and at least one of the first surface (121) and the side surface (123) is provided with the diffuse reflection structure (130), so that the light reflected by the reflection portion (1222) is scattered by the diffuse reflection structure (130) and then emitted.

5. The fill light module according to claim 4, characterized in that: The diffuse reflection structure (130) comprises a plurality of arc-surface reflection portions (131), and the distribution density and diameter of the arc-surface reflection portions (131) gradually increase in a direction from close to the light-emitting portion (112) to far away from the light-emitting portion (112).

6. The fill light module according to claim 4, characterized in that: At least one of the first surface (121), the side surface (123) and the plate surface of the substrate (111) is provided with a reflective layer.

7. The fill light module according to claim 1, characterized in that: A microstructure array (1223) is provided on the surface of the light-emitting portion (1221), and the microstructure array (1223) is used to adjust the emission angle of light emitted by the light-emitting portion (1221).

8. The fill light module according to claim 7, characterized in that: The microstructure array (1223) includes at least one of lenses, prisms, pits, and convex points, or a combination thereof.

9. The fill light module according to claim 1, characterized in that: The fill light module (100) further comprises a light-transmitting cover plate (140), wherein the light-transmitting cover plate (140) is arranged to cover the light-emitting portion (1221).

10. An electronic device, characterized in that: It comprises a device body and the fill light module (100) according to any one of claims 1 to 9; The device body comprises a camera module (200), the fill light module (100) is arranged on the device body, the fill light module (100) comprises at least two light guides (120), the light guides (120) are arc-shaped, and the ends of at least two light guides (120) are close to each other to form a ring structure, and the ring structure is arranged around the outside of the camera module (200).

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