Fill lights and electronic equipment

Abstract

The present application discloses a fill light and an electronic device, belonging to the technical field of optical devices, the fill light includes a light guide, a first light source and a second light source; the light guide has an annular light emitting surface, a first reflecting surface, a second reflecting surface and a third reflecting surface, the annular light emitting surface and the first reflecting surface are located on the same side of the light guide, and the annular light emitting surface is arranged around the first reflecting surface, the second reflecting surface is located on the side of the light guide away from the annular light emitting surface, and the third reflecting surface is arranged around the annular light emitting surface; the first light source is located on the side of the light guide away from the annular light emitting surface, the first light source and the first reflecting surface are arranged opposite to each other, the light emitted by the first light source is emitted from the annular light emitting surface after being reflected by the first reflecting surface and the second reflecting surface; the second light source is located on the side of the light guide away from the annular light emitting surface, the second light source and the third reflecting surface are arranged opposite to each other, the light emitted by the second light source is emitted from the annular light emitting surface after being reflected by the third reflecting surface and the second reflecting surface.

Description

Technical Field

[0001] The present application belongs to the technical field of optical devices, and specifically relates to a fill light and an electronic device. Background Art

[0002] As the imaging capabilities of mobile phones and other electronic devices continue to improve, the demand for taking photos with these devices is growing, and new photo-taking scenarios are emerging. However, capturing clear photos in low-light environments and night scenes can be difficult, and video recording or live streaming can also be challenging. Therefore, electronic devices are equipped with flashlights, which operate in a high-current, instantaneous flash mode to provide supplemental lighting for shooting. Flashlights can also function as flashlights for illumination.

[0003] In related technologies, the fill-light mode of flash fill lights differs significantly from continuous natural light, and therefore cannot achieve soft fill lighting. To improve the fill-light effect of electronic devices, they are often equipped with soft ring fill lights, which are placed side by side with the flash fill lights. In this case, the flash fill light provides the electronic device with flash photography and lighting functions, while the soft ring fill light provides the electronic device with soft fill lighting functions.

[0004] However, arranging the flash fill light and the soft fill light side by side on the electronic device will occupy a large space of the electronic device, which is not conducive to the integrated design of the electronic device, thereby making the layout of the electronic device more difficult. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide an electronic device that can solve the technical problem of the high difficulty of layout of electronic devices.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] The present invention provides a fill light, including:

[0008] a light guide, the light guide having an annular light emitting surface, a first reflective surface, a second reflective surface, and a third reflective surface, the annular light emitting surface and the first reflective surface being located on the same side of the light guide, the annular light emitting surface being arranged around the first reflective surface, the second reflective surface being located on a side of the light guide facing away from the annular light emitting surface, and the third reflective surface being arranged around the annular light emitting surface;

[0009] a first light source, the first light source being located on a side of the light guide member away from the annular light-emitting surface, the first light source being arranged opposite to the first reflecting surface, and the light emitted by the first light source being reflected by the first reflecting surface and the second reflecting surface and then emitted from the annular light-emitting surface;

[0010] a second light source, the second light source being located on a side of the light guide member away from the annular light emitting surface, the second light source being arranged opposite to the third reflecting surface, and the light emitted by the second light source being reflected by the third reflecting surface and the second reflecting surface and then emitted from the annular light emitting surface;

[0011] The luminous power of the first light source is higher than the luminous power of the second light source.

[0012] An embodiment of the present application provides an electronic device, including a device body and the above-mentioned fill light, wherein the fill light is arranged on the device body.

[0013] In an embodiment of the present application, the luminous power of the first light source is higher than the luminous power of the second light source, so the luminous brightness of the first light source is high, and therefore the first light source is used for lighting or flash fill light. The luminous brightness of the second light source is low, and therefore the second light source is used for soft light fill light. When flash fill light or lighting is required, the light emitted by the first light source is reflected by the first reflecting surface and the second reflecting surface and then emitted from the annular light emitting surface. When soft light fill light is required, the light emitted by the second light source is reflected by the third reflecting surface and the second reflecting surface and then emitted from the annular light emitting surface. In this solution, the fill light can realize both low-illuminance soft light ring and high-illuminance lighting, and the soft light ring and the lighting share the annular light emitting surface. The soft light ring and the lighting in the fill light disclosed in the present application share the same light emitting area, so that the fill light occupies a smaller space of the electronic device, which is more conducive to the integrated design of the electronic device, and therefore is more conducive to reducing the difficulty of the layout of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a cross-sectional view of a fill light disclosed in an embodiment of the present application;

[0015] Figure 2 and Figure 3 This is a structural diagram of a light guide member of a fill light disclosed in an embodiment of the present application;

[0016] Figure 4 is a cross-sectional view of a light guide of a fill light disclosed in an embodiment of the present application;

[0017] Figure 5 yes Figure 4 A partial schematic diagram of

[0018] Figure 6 This is a schematic structural diagram of a second light guide member of a fill light disclosed in an embodiment of the present application;

[0019] Figures 7 to 9 This is a structural diagram of some components of a light guide of a fill light disclosed in an embodiment of the present application;

[0020] Figure 10 This is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application;

[0021] Figure 11 is an exploded diagram of an electronic device disclosed in an embodiment of the present application;

[0022] Figure 12 This is a partial cross-sectional view of an electronic device disclosed in an embodiment of the present application.

[0023] Description of reference numerals:

[0024] 100-fill light, 110-light guide, 1101-annular light emitting surface, 1102-first reflecting surface, 1102a-convex area, 1102b-flat area, 1103-second reflecting surface, 1103a-annular light guide groove, 1104-third reflecting surface, 1105-first light incident surface, 1106-second light incident surface, 111-transparent light guiding part, 1111-accommodating groove, 112-first reflecting part, 113-second reflecting part, 114-light isolating part, 115-annular recess, 120-first light source, 130-second light source, 200-housing, 300-camera decoration, 400-lens. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of 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.

[0026] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects and are not used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0027] The fill light and electronic device provided in the embodiments of the present application are described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0028] Please refer to Figures 1 to 12 The embodiment of the present application discloses a fill light 100 , which includes a light guide 110 , a first light source 120 and a second light source 130 .

[0029] The light guide 110 is a light transmission component, and the light emitted by the first light source 120 and the second light source 130 is transmitted through the light guide 110. The light guide 110 has an annular light-emitting surface 1101, a first reflective surface 1102, a second reflective surface 1103 and a third reflective surface 1104. The annular light-emitting surface 1101 and the first reflective surface 1102 are located on the same side of the light guide 110, and the annular light-emitting surface 1101 is arranged around the first reflective surface 1102. It can be understood here that the first reflective surface 1102 is located in the inner ring area of ​​the annular light-emitting surface 1101. The second reflective surface 1103 is located on the side of the light guide 110 away from the annular light-emitting surface 1101, and the third reflective surface 1104 is arranged around the annular light-emitting surface 1101. The annular light-emitting surface 1101 here is located in the inner ring area of ​​the third reflective surface 1104.

[0030] The first light source 120 is located on the side of the light guide 110 away from the annular light emitting surface 1101, and the first light source 120 is arranged opposite to the first reflecting surface 1102. Figure 1 As shown by the solid arrows in the figure, the light emitted by the first light source 120 is reflected by the first reflective surface 1102 and the second reflective surface 1103 and then emitted from the annular light-emitting surface 1101. Since the first reflective surface 1102 is located in the inner ring area of ​​the annular light-emitting surface 1101, the light from the first light source 120 is transmitted from the middle position of the light guide 110 to the edge position of the light guide 110, and then emitted from the annular light-emitting surface 1101.

[0031] The second light source 130 is located on the side of the light guide 110 away from the annular light emitting surface 1101, and the second light source 130 is arranged opposite to the third reflecting surface 1104. Figure 1 As shown by the dotted arrows in FIG, the light emitted by the second light source 130 is reflected by the third reflective surface 1104 and the second reflective surface 1103 and then emitted from the annular light-emitting surface 1101. Since the third reflective surface 1104 is located in the outer ring area of ​​the annular light-emitting surface 1101, the light from the second light source 130 is transmitted from the edge position of the light guide 110 to the middle position, and then emitted from the annular light-emitting surface 1101.

[0032] The first light source 120 and the second light source 130 in this application can both be LED (Light Emitting Diode, semiconductor light emitting diode) lamps, high-pressure sodium lamps, metal halide lamps, etc. Of course, the first light source 120 and the second light source 130 of the fill light 100 can also be other structures, which is not limited in this article.

[0033] The fill light 100 disclosed in the present application is provided with a first light source 120 and a second light source 130. The light of the first light source 120 is transmitted from the center position of the light guide 110 to the edge position, while the light of the second light source 130 is transmitted from the edge position of the light guide 110 to the center direction, and the light of the first light source 120 and the second light source 130 are both emitted through the annular light emitting surface 1101, so the light emitted by the first light source 120 and the second light source 130 share the annular light emitting surface 1101 and the second reflecting surface 1103.

[0034] The luminous power of the first light source 120 is higher than the luminous power of the second light source 130. This can also be understood as the illumination of the first light source 120 is higher than the illumination of the second light source 130. At this time, since the luminous power of the first light source 120 is high, the brightness of the first light source 120 is brighter, so the first light source 120 is used for lighting or flash fill light. The luminous power of the second light source 130 is low, so the brightness of the second light source 130 is low, so the second light source 130 is used for soft light fill light. Therefore, the fill light 100 disclosed in this application has multiple usage modes.

[0035] During the specific operation process, when flash fill light or lighting is required, the light emitted by the first light source 120 is reflected by the first reflective surface 1102 and the second reflective surface 1103 and then emitted from the annular light-emitting surface 1101. In this mode, the light emitted by the annular light-emitting surface 1101 is relatively bright and has a high illumination. When soft light fill light is required, the light emitted by the second light source 130 is reflected by the third reflective surface 1104 and the second reflective surface 1103 and then emitted from the annular light-emitting surface 1101. In this mode, the annular light-emitting surface 1101 forms a halo with soft light sensation, moderate brightness, and sustainable light emission. Therefore, the fill light 100 can realize both a soft light ring with low illumination and high illumination, and the soft light ring and the lighting share the annular light-emitting surface 1101.

[0036] In the embodiment disclosed in the present application, the soft light ring and the lighting in the fill light 100 share the same light output area, so that the fill light 100 occupies a smaller space of the electronic device, which is more conducive to the integrated design of the electronic device, and thus more conducive to reducing the layout difficulty of the electronic device.

[0037] In addition, in the solutions of the related art, the electronic device needs to have two light-emitting positions, which results in a large number of openings in the electronic device, and thus leads to poor appearance consistency of the electronic device, thus affecting the appearance performance of the electronic device. In the embodiment disclosed in the present application, the fill light 100 has only one light-emitting position, which can achieve both lighting and soft light fill, so the number of openings in the electronic device is small, which is conducive to improving the appearance consistency of the electronic device, and thus is conducive to improving the appearance performance of the electronic device. In addition, compared with the solution of the related art in which the flash fill light and the soft light ring fill light are arranged in parallel, the fill light 100 in the present application has a simple structure and low cost.

[0038] Compared with the solutions in the related art, the fill light 100 disclosed in the present application is also capable of performing ultra-high brightness fill light, that is, when the first light source 120 and the second light source 130 are turned on at the same time, the light emitted by the first light source 120 and the second light source 130 are simultaneously converged on the annular light-emitting surface 1101, thereby enabling ultra-high brightness fill light. Therefore, the fill light 100 disclosed in the present application has better fill light performance.

[0039] In one embodiment, the light guide 110 can be a transparent structural member, which can be made of materials such as glass or resin. In this case, the annular light-emitting surface 1101, the first reflective surface 1102, the second reflective surface 1103, and the third reflective surface 1104 are all different areas on the transparent structural member. In order to enable the transparent structural member to reflect light, a coating process can be performed on part of the outer surface of the transparent structural member. For example, a silver coating process can be performed on part of the outer surface of the transparent structural member to form the first reflective surface 1102, the second reflective surface 1103, and the third reflective surface 1104. Alternatively, a reflective texture can be provided on part of the outer surface of the transparent structural member to form the first reflective surface 1102, the second reflective surface 1103, and the third reflective surface 1104.

[0040] In another optional solution, the light guide 110 may include a first reflector, a second reflector, a third reflector, and a light-transmitting ring, which are separately arranged. The first reflector and the light-transmitting ring are both located on the same side of the second reflector, and the light-transmitting ring is arranged around the first reflector. The third reflector is arranged around the light-transmitting ring. The first reflector has the above-mentioned first reflective surface 1102, the second reflector has the above-mentioned second reflective surface 1103, the third reflector has the above-mentioned third reflective surface 1104, and the light-transmitting ring has the above-mentioned annular light-emitting surface 1101. The difference between this solution and the above-mentioned solution is that the light-guiding medium for light in the above-mentioned solution is a transparent structural member, while the light-guiding medium in this solution is air.

[0041] In another optional embodiment, as Figure 1As shown, the light guide 110 may include an integrally formed transparent light guide portion 111, a first reflective portion 112, and a second reflective portion 113. The first reflective portion 112 may be provided with a first reflective surface 1102, and the second reflective portion 113 may be provided with a third reflective surface 1104. Specifically, the transparent light guide portion 111, the first reflective portion 112, and the second reflective portion 113 are double-shot injection molded. In this case, the light guide 110 is integrally injection molded.

[0042] Specifically, the annular light-emitting surface 1101 and the second reflective surface 1103 are disposed on opposite sides of the transparent light-guiding portion 111. The transparent light-guiding portion 111 further includes a first light-entering surface 1105 and a second light-entering surface 1106. The first light-entering surface 1105 can be disposed opposite the first light source 120. In this case, light emitted by the first light source 120 enters the transparent light-guiding portion 111 through the first light-entering surface 1105. The second light-entering surface 1106 is disposed opposite the second light source 130. The second reflective surface 1103 surrounds the first light-entering surface 1105. The second light-entering surface 1106 is disposed on the side of the second reflective surface 1103 facing away from the first light-entering surface 1105. In this case, light emitted by the second light source 130 enters the transparent light-guiding portion 111 through the second light-entering surface 1106.

[0043] Compared to a structure where the light guide 110 is split, this solution is more compact and easier to assemble, thereby improving the modularity of the fill light 100. Furthermore, the light of the fill light 100 is reflected or refracted within the same light-guiding medium, so the reflection efficiency of the reflected light from each part is the same, further improving the optical performance of the fill light 100.

[0044] Compared to a solution in which the light guide 110 can be a transparent structural component, this solution uses an integral injection molding process for the transparent light guide portion 111, the first reflective portion 112, and the second reflective portion 113. This integral injection molding process is less expensive and less difficult than the coating process, resulting in a lower cost. Furthermore, since the transparent light guide portion 111, the first reflective portion 112, and the second reflective portion 113 are integrally injection molded, they are less likely to fall off or separate, whereas the reflective surface formed by the coating is susceptible to falling off. This prevents the coating from falling off and causing a short circuit in the electronic components of the electronic device.

[0045] Optionally, the transparent light guide portion 111 may be made of materials such as polymethyl methacrylate, acrylic plate, etc. The first reflective portion 112 and the second reflective portion 113 may be made of a highly reflective plastic material.

[0046] Furthermore, the transparent light guide portion 111 may be provided with a receiving groove 1111, and the receiving groove 1111 and the annular light emitting surface 1101 may be located on the same side of the transparent light guide portion 111. The annular light emitting surface 1101 may be disposed around the receiving groove 1111, and the first reflective portion 112 may be injection molded within the receiving groove 1111. The surface of the first reflective portion 112 that contacts the inner surface of the receiving groove 1111 is the first reflective surface 1102. It can be understood here that the inner surface of the receiving groove 1111 is the first reflective surface 1102.

[0047] In this solution, the first reflective portion 112 is injection molded in the accommodating groove 1111. At this time, the stacking thickness of the first reflective portion 112 and the transparent light guide portion 111 is the thickness of the transparent light guide portion 111, which is beneficial to reducing the overall thickness of the light guide 110, thereby facilitating the miniaturization of the fill light 100, and further reducing the space occupied by electronic equipment.

[0048] In addition, the injection molding of the first reflective portion 112 in the accommodating groove 1111 also increases the connection area between the transparent light guide portion 111 and the first reflective portion 112, thereby improving the connection strength between the first reflective portion 112 and the transparent light guide portion 111, and further avoiding the risk of the first reflective portion 112 falling off from the transparent light guide portion 111.

[0049] In the above solution, the second reflective portion 113 is disposed around the circumferential sidewall of the transparent light guide portion 111. In this case, the surface of the second reflective portion 113 that contacts the circumferential sidewall of the transparent light guide portion 111 may be the second reflective surface 1103.

[0050] In one optional solution, at least one of the first reflective portion 112 and the second reflective portion 113 can be a white injection-molded structure with a reflectivity greater than or equal to 95%. For example, the first reflective portion 112 and the second reflective portion 113 can be made of white PC material. This solution can further improve the reflection efficiency of the first reflective portion 112 and the second reflective portion 113. Furthermore, the spacing between the first reflective portion 112 and the second reflective portion 113 creates a light-isolating effect, which can address the problem of light absorption by double-sided tape.

[0051] In one approach, if Figure 6 As shown, part of the light from the second light source 130 passes through the second reflecting surface 1103 and then directly emits toward the annular light-emitting surface 1101, or passes through the second reflecting surface 1103 and then emits toward the annular light-emitting surface 1101. At this time, the user will observe the light distribution texture on the second light-incident surface 1106 or the second light source 130 from the annular light-emitting surface 1101, thereby creating a risk of device exposure in the fill light 100.

[0052] Based on this, in another optional embodiment, the light guide 110 may further include a light-isolating portion 114, which may be disposed on a side of the transparent light guide 111 facing away from the annular light-emitting surface 1101. The light-isolating portion 114 surrounds the second reflective surface 1103 and is located between the second light-incident surface 1106 and the second reflective surface 1103. In this solution, the light-isolating portion 114 can separate the second reflective surface 1103 from the second light-incident surface 1106, thereby blocking light from the second light source 130 directed toward the second reflective surface 1103, thereby preventing the risk of component exposure in the fill light 100.

[0053] Optionally, the light-isolating portion 114 may be integrally injection-molded with the transparent light-guiding portion 111 . This solution can improve the connection strength between the light-isolating portion 114 and the transparent light-guiding portion 111 .

[0054] In another optional solution, the outer wall of the light-isolating portion 114 and the transparent light-guiding portion 111 can form an annular recess 115, which is used to separate the second light-incident surface 1106 from the light-isolating portion 114. In this solution, the annular recess 115 can reduce the intensity of the large-angle light from the second light source 130, and also helps reduce the overall weight of the light guide 110, further facilitating a thinner and lighter light guide 110.

[0055] Optionally, the light-isolating portion 114 can be a white injection-molded structure with a reflectivity greater than or equal to 95%. For example, the light-isolating portion 114 can be made of white PC material. In this solution, while the light-isolating portion 114 has a light-isolating effect, the reflective efficiency of the light-isolating portion 114 can be further improved, thereby facilitating improved light utilization by the second light source 130.

[0056] The first light incident surface 1105 in the above solution may be a planar structure.

[0057] Alternatively, in another embodiment, the first light incident surface 1105 may be an arc-shaped concave surface, and the arc-shaped concave surface may be rotationally symmetric about the central optical axis of the first light source 120. The central optical axis here refers to the axis of the center position of the first light source 120 or the physical center line of the first light source 120. In this solution, the arc-shaped concave surface has a more precise light angle contraction effect on light rays diverging at small angles. Therefore, by setting the first light incident surface 1105 as an arc-shaped concave surface, it is possible to better contract small-angle light rays, thereby improving the collimation effect of the light rays, so that more light rays can be reflected by the first reflecting surface 1102, thereby effectively improving the light utilization rate. In addition, the first light incident surface 1105 is recessed toward one side of the annular light emitting surface 1101, and the first light source 120 can be located in the recessed area, which is beneficial to reducing the stacking thickness of the light guide 110 and the first light source 120, and thereby beneficial to reducing the volume of the fill light 100.

[0058] Specifically, the first light incident surface 1105 can be formed by rotating a first curve about the central optical axis of the first light source 120. The first curve herein refers to the surface profile of the first light incident surface 1105. A surface profile herein refers to a line segment that forms a specified contour after rotating one rotation along a certain rotational position. The first curve herein can be a spline curve, a Bezier curve, or other curve forms, which are not limited herein.

[0059] In the above solution, the second light source 130 is located at the edge of the light guide 110. This can be understood as the second light source 130 being eccentrically disposed with respect to the light guide 110. Therefore, in order to improve the uniformity of light distribution to the light guide 110, in another optional embodiment, the second light incident surface 1106 may be provided with a light distribution texture structure, and the light distribution texture structure may be opposite to the light emitting side of the second light source 130. In this solution, the light emitted by the second light source 130 is first distributed by the light distribution texture structure before being incident on the third reflective surface 1104. This can further improve the uniformity of the soft light ring, thereby further improving the optical performance of the fill light 100.

[0060] Furthermore, there may be a plurality of second light sources 130, and the plurality of second light sources 130 may be arranged at intervals along the circumference of the third reflective surface 1104. This solution can further improve the uniformity of the soft light ring.

[0061] Optionally, the second light incident surface 1106 may be an annular surface, and the light distribution texture structure may be a tooth-shaped texture structure provided on the annular surface. Alternatively, the second light incident surface 1106 may be provided with multiple light distribution texture structures arranged at intervals, each light distribution texture structure corresponding to a second light source 130. The light distribution texture structure may be a Fresnel texture. In this case, each light distribution texture structure may be rotationally symmetric about the central optical axis of the second light source 130.

[0062] In an optional solution, the first reflective surface 1102, the second reflective surface 1103, the third reflective surface 1104, and the annular light-emitting surface 1101 can all be rotationally symmetric about the central optical axis of the first light source 120. In this solution, since the first reflective surface 1102, the second reflective surface 1103, the third reflective surface 1104, and the annular light-emitting surface 1101 are all rotationally symmetric about the central optical axis of the first light source 120, the illumination distribution of the light reflected by the first reflective surface 1102, the second reflective surface 1103, and the third reflective surface 1104 along their circumferences is uniform, thereby making the light of the fill light 100 more uniform.

[0063] Furthermore, light emitted by the first light source 120 is reflected between the first reflective surface 1102 and the second reflective surface 1103, while light emitted by the second light source 130 is reflected between the third reflective surface 1104 and the second reflective surface 1103. Thus, the first reflective surface 1102 and the second reflective surface 1103 form a coaxial dual-reflection structure, while the third reflective surface 1104 and the second reflective surface 1103 form a coaxial dual-reflection structure. Therefore, utilizing this coaxial dual-reflection structure to guide light reduces the number of light reflections and maximizes the amount of light directed to the annular light-emitting surface 1101, significantly improving the luminous efficiency of the fill light 100. Therefore, even with a single light source, the fill light 100 maintains sufficient energy. This solution utilizes a coaxial dual-reflection structure for light guidance, effectively reducing the number of light sources in the fill light 100. This results in a smaller, lower-cost, and better heat dissipation performance, thereby enhancing the performance of the fill light 100.

[0064] The first reflecting surface 1102, the second reflecting surface 1103, the third reflecting surface 1104 and the annular light emitting surface 1101 in the above solution can all be formed by rotating corresponding curves around the central optical axis of the first light source 120 as the rotation axis, which will not be described in detail herein.

[0065] In an optional embodiment, the first reflective surface 1102 includes a convex region 1102a. The convex region 1102a here refers to the first reflective portion 112. If the first reflective surface 1102 is a concave region relative to the transparent light guide portion 111, that is, the inner surface of the accommodating groove 1111. The distance between any point on the convex region 1102a and the central optical axis of the first light source 120 can be a first distance. The first distance here refers to the perpendicular distance between any point on the convex region 1102a and the central optical axis of the first light source 120. In the direction from the annular light emitting surface 1101 to the second reflective surface 1103, the first distance gradually decreases.

[0066] In this solution, the convex area 1102a is a tapered structure with an edge area larger than the middle area. At this time, the peripheral side of the convex area 1102a is inclined to extend outward, and the convex area 1102a is a trumpet-shaped structure. The surface of the trumpet-shaped structure can increase the reflection angle of light reflected to the outer edge, thereby improving the reflection performance of light, thereby reducing the number of reflections of light and further improving the optical performance of the fill light 100.

[0067] In another optional embodiment, the first reflective surface 1102 may further include a planar region 1102b. Planar region 1102b may be located on a side of the convex region 1102a away from the central optical axis of the first light source 120 and disposed around the convex region 1102a. This means that the outer diameter of the convex region is equivalent to the inner diameter of planar region 1102b. In this embodiment, planar region 1102b can prevent the edge reflection angle of the first reflective surface 1102 from being too large, thereby further improving the optical performance of the fill light 100.

[0068] In another optional solution, the second reflective surface 1103 may include a plurality of annular light-guiding grooves 1103a, which may be arranged continuously in a direction perpendicular to the central optical axis of the first light source 120. In this solution, the sidewalls of each annular light-guiding groove 1103a are capable of precise dimming. Therefore, by optimizing the angle of the sidewalls of the annular light-guiding grooves 1103a, the refraction angle of light can be precisely controlled, thereby causing the light emitted by the first light source 120 and the second light source 130 to be closer to the center of the annular light-emitting surface 1101, thereby improving the fill light performance of the fill light 100.

[0069] Furthermore, in the direction from the outer edge of the second reflective surface 1103 to its inner edge, the distance between each annular light-guiding groove 1103a and the annular light-emitting surface 1101 gradually decreases. At this time, the closer the annular light-guiding groove 1103a is to the outer side of the light guide 110, the smaller the distance between it and the annular light-emitting surface 1101. In this solution, the multiple annular light-guiding grooves 1103a are arranged inwardly along the radial direction of the light guide 110, so that the light spots of the first light source 120 and the second light source 130 are closer to the center area of ​​the annular light-emitting surface 1101, thereby further improving the illuminance distribution of the projection surface of the fill light 100, and thus making the illuminance distribution of the projection surface of the fill light 100 more uniform.

[0070] In another optional solution, the third reflective surface 1104 may include a concave area, and the distance between any point on the concave area and the central optical axis of the first light source 120 may be a second distance. In the direction from the annular light-emitting surface 1101 to the second reflective surface 1103, the second distance may gradually decrease. In this solution, the third reflective surface 1104 is a tapered structure in which the edge area is larger than the middle area. In this case, the peripheral side of the third reflective surface 1104 is inclined and extends outward. The third reflective surface 1104 is a trumpet-shaped structure. The surface of the trumpet-shaped structure can increase the reflection angle of light reflected toward the outer edge, thereby improving the reflection performance of the light, thereby reducing the number of light reflections and further improving the optical performance of the fill light 100.

[0071] Based on the fill light 100 disclosed in the embodiment of the present application, the embodiment of the present application further discloses an electronic device, and the disclosed electronic device includes the fill light 100 described in any of the above embodiments.

[0072] The electronic device disclosed in this application also includes a device body, which includes but is not limited to a housing 200, a circuit board, a display screen, and other components. A fill light 100 is disposed within the device body. Specifically, the fill light 100 is mounted within the housing 200, and a first light source 120 and a second light source 130 are electrically connected to the device body's circuit board. The circuit board can be a main board or a sub-board of the electronic device. The circuit board is used to control the first light source 120 and the second light source 130.

[0073] In another alternative embodiment, the device body may include a housing 200, a camera trim 300, and a lens 400. The camera trim 300 and lens 400 are used to shield the camera module located within the housing 200. The housing 200 has a mounting hole, into which the camera trim 300 is mounted. In a specific embodiment, the mounting hole may be located on the battery cover of the housing 200. In this case, the camera trim 300 is used to decorate the rear camera module of the electronic device. The lens 400 covers the camera trim 300. The camera trim 300 has a light-transmitting hole, through which external light enters the camera module, thereby enabling the camera to shoot. The camera trim 300 also has a through-hole, which is arranged parallel to the light-transmitting hole. At least a portion of the light guide 110 of the fill light 100 is located within the through-hole, exposing the light guide 110. The side of the light guide 110 with the annular light-emitting surface 1101 can be bonded to the lens 400.

[0074] In this solution, the light guide 110 is attached to the lens 400 , so the fill light 100 occupies the installation area of ​​the camera decoration 300 , thereby avoiding occupying the space of the housing 200 , which is more conducive to optimizing the layout of the electronic device.

[0075] Optionally, an adhesive layer is provided on the side of the first reflective portion 112 facing the lens 400, and the first reflective portion 112 is bonded to the lens 400 via the adhesive layer. The adhesive layer here can be an adhesive structure such as double-sided tape, glue, etc. Of course, the adhesive layer can also be other adhesive structures, which are not limited herein. The camera decorative member 300 in this application can be a composite structure of multiple adhesive members. The specific structure of the camera decorative member 300 can be flexibly selected and is not limited herein.

[0076] The electronic devices disclosed in the embodiments of the present application may be smart phones, tablet computers, e-book readers, wearable devices (such as smart watches), electronic game consoles, and other devices. The embodiments of the present application do not limit the specific types of electronic devices.

[0077] 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, characterized in that: include: a light guide, the light guide having an annular light emitting surface, a first reflective surface, a second reflective surface, and a third reflective surface, the annular light emitting surface and the first reflective surface being located on the same side of the light guide, the annular light emitting surface being arranged around the first reflective surface, the second reflective surface being located on a side of the light guide facing away from the annular light emitting surface, and the third reflective surface being arranged around the annular light emitting surface; a first light source, the first light source being located on a side of the light guide member away from the annular light-emitting surface, the first light source being arranged opposite to the first reflecting surface, and the light emitted by the first light source being reflected by the first reflecting surface and the second reflecting surface and then emitted from the annular light-emitting surface; a second light source, the second light source being located on a side of the light guide member away from the annular light emitting surface, the second light source being arranged opposite to the third reflecting surface, and the light emitted by the second light source being reflected by the third reflecting surface and the second reflecting surface and then emitted from the annular light emitting surface; The luminous power of the first light source is higher than the luminous power of the second light source.

2. The fill light according to claim 1, characterized in that: The light guide member includes an integrally formed transparent light guide portion, a first reflective portion, and a second reflective portion, wherein the first reflective portion is provided with the first reflective surface, and the second reflective portion is provided with the third reflective surface; The annular light-emitting surface and the second reflecting surface are arranged on opposite sides of the transparent light-guiding portion. The transparent light-guiding portion is also provided with a first light-entering surface and a second light-entering surface. The first light-entering surface is arranged opposite to the first light source, and the second light-entering surface is arranged opposite to the second light source. The second reflecting surface is arranged around the first light-entering surface, and the second light-entering surface is arranged on the side of the second reflecting surface away from the first light-entering surface.

3. The fill light according to claim 2, characterized in that: The transparent light-guiding portion is provided with an accommodating groove, the accommodating groove and the annular light-emitting surface are located on the same side of the transparent light-guiding portion, the annular light-emitting surface is arranged around the accommodating groove, the first reflecting portion is injection-molded in the accommodating groove, and the surface of the first reflecting portion that contacts the inner surface of the accommodating groove is the first reflecting surface.

4. The fill light according to claim 2, characterized in that: The light guide also includes a light isolation portion, which is arranged on a side of the transparent light guide portion away from the annular light emitting surface, is arranged around the second reflective surface, and is located between the second light incident surface and the second reflective surface.

5. The fill light according to claim 4, characterized in that: The light isolation portion and the transparent light guide portion are integrally injection-molded. The outer wall of the light isolation portion and the transparent light guide portion form an annular recess, and the annular recess is used to separate the second light incident surface and the light isolation portion.

6. The fill light according to claim 2, characterized in that: The first light incident surface is an arc-shaped concave surface, and the arc-shaped concave surface is rotationally symmetric about the central optical axis of the first light source; Alternatively, the second light incident surface is provided with a light distribution texture structure, and the light distribution texture structure is opposite to the light exit side of the second light source.

7. The fill light according to claim 1, characterized in that: The first reflecting surface, the second reflecting surface, the third reflecting surface and the annular light-emitting surface are all rotationally symmetric about the central optical axis of the first light source.

8. The fill light according to claim 7, characterized in that: The first reflecting surface includes a convex area, and the distance between any point on the convex area and the central optical axis of the first light source is a first distance. In the direction from the annular light emitting surface to the second reflecting surface, the first distance gradually decreases.

9. The fill light according to claim 8, characterized in that: The first reflective surface further includes a planar area, which is located on a side of the convex area away from the central optical axis of the first light source and is arranged around the convex area.

10. The fill light according to claim 7, characterized in that: The second reflective surface includes a plurality of annular light-guiding grooves, and the plurality of annular light-guiding grooves are continuously arranged in a direction perpendicular to the central optical axis of the first light source; In a direction from the outer edge of the second reflective surface to the inner edge thereof, the distance between each of the annular light guiding grooves and the annular light emitting surface gradually decreases.

11. The fill light according to claim 7, characterized in that: The third reflective surface includes a concave area, and the distance between any point on the concave area and the central optical axis of the first light source is a second distance. In the direction from the annular light emitting surface to the second reflective surface, the second distance gradually decreases.

12. The fill light according to claim 4, characterized in that: At least one of the first reflecting portion, the second reflecting portion, and the light-isolating portion is a white injection-molded structure, and a reflectivity of the white injection-molded structure is greater than or equal to 95%.

13. The fill light according to claim 1, characterized in that: There are multiple second light sources, and the multiple second light sources are arranged at intervals along the circumference of the third reflecting surface.

14. An electronic device, characterized in that: The device comprises a device body and the fill light according to any one of claims 1 to 13, wherein the fill light is arranged on the device body.

15. The electronic device according to claim 14, characterized in that The device body includes a shell, a camera decoration and a lens. The shell is provided with a mounting hole, the camera decoration is installed in the mounting hole, the lens covers the camera decoration, the camera decoration is provided with a through hole, at least part of the light guide of the fill light is located in the through hole, and the light guide is provided with a side of the annular light-emitting surface bonded to the lens.

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