Light supplement lamp and electronic equipment

Abstract

The invention discloses a light supplement lamp and electronic equipment, and belongs to the technical field of optical devices. The light supplement lamp comprises a light guide part, a first light source and a second light source; the light guide part is provided with 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 part, the annular light-emitting surface surrounds the first reflecting surface, the second reflecting surface is located on the side, away from the annular light-emitting surface, of the light guide part, and the third reflecting surface surrounds the annular light-emitting surface; the first light source is located on the side, away from the annular light-emitting face, of the light guide part and is opposite to the first reflecting face, and light emitted by the first light source is emitted out of the annular light-emitting face after being reflected by the first reflecting face and the second reflecting face. The second light source is located on the side, away from the annular light-emitting face, of the light guide part and is opposite to the third reflecting face, and light emitted by the second light source is emitted out of the annular light-emitting face after being reflected by the third reflecting face and the second reflecting face.

Description

Technical Field

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

[0002] With the continuous improvement of the imaging functions of electronic devices such as mobile phones, the demand for taking photos with electronic devices is also increasing, and photo-taking scenes are emerging in an endless stream. It is difficult to take clear photos in dark environments, night scene shooting and other scenes, and it is also difficult to have a good experience in video recording or live broadcasting. Therefore, electronic devices are equipped with flash fill lights, which use a high-current instantaneous flash working mode, and the flash fill lights can provide fill light for shooting. In addition, the flash fill light can also be used as a flashlight for lighting.

[0003] In the related art, the fill light mode of the flash fill light is quite different from the situation of continuous exposure to natural light, so soft fill light cannot be achieved. In order to improve the fill light effect of electronic devices, electronic devices are usually provided with soft light ring fill light, which is arranged side by side with the flash fill light on the electronic device. In this case, the flash fill light realizes the flash photography and lighting functions of the electronic device, while the soft light ring fill light can realize the soft light fill light function of the electronic device.

[0004] However, the flash fill light and the soft fill light are arranged side by side on the electronic device, which will occupy a large space of the electronic device, and is not conducive to the integrated design of the electronic device, thus 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: The present application provides a fill light, including: A light guide, the light guide having an annular light emitting surface, a first reflection surface, a second reflection surface and a third reflection surface, the annular light emitting surface and the first reflection surface are located on the same side of the light guide, and the annular light emitting surface is arranged around the first reflection surface, the second reflection surface is located on a side of the light guide away from the annular light emitting surface, and the third reflection surface is 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; Wherein, the luminous power of the first light source is higher than the luminous power of the second light source.

[0007] 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.

[0008] 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, so the first light source is used for lighting or flash fill light. The luminous brightness of the second light source is low, so 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 reflection surface and the second reflection 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 reflection surface and the second reflection surface and then emitted from the annular light emitting surface. In this scheme, 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

[0009] Figure 1 is a cross-sectional view of a fill light disclosed in an embodiment of the present application; Figure 2 and Figure 3 It is a structural schematic diagram of a light guide of a fill light disclosed in an embodiment of the present application; Figure 4 is a cross-sectional view of a light guide of a fill light disclosed in an embodiment of the present application; Figure 5 yes Figure 4 A partial schematic diagram of Figure 6 It is a structural schematic diagram of a second light guide member of a fill light disclosed in an embodiment of the present application; Figures 7 to 9 It is a structural schematic diagram of some components of a light guide of a fill light disclosed in an embodiment of the present application; Fig.10 It is a structural schematic diagram of an electronic device disclosed in an embodiment of the present application; Fig.11 is an exploded diagram of an electronic device disclosed in an embodiment of the present application; Fig.12 It is a partial cross-sectional view of an electronic device disclosed in an embodiment of the present application.

[0010] Description of reference numerals: 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

[0011] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0012] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here. In addition, "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.

[0013] The fill light and the electronic device provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in combination with the accompanying drawings.

[0014] Please refer to Figures 1 to 12 The embodiment of the present application discloses a fill light 100 , and the disclosed fill light 100 includes a light guide 110 , a first light source 120 and a second light source 130 .

[0015] 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 reflection surface 1102, a second reflection surface 1103 and a third reflection surface 1104. The annular light emitting surface 1101 and the first reflection 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 reflection surface 1102. It can be understood here that the first reflection surface 1102 is located in the inner ring area of ​​the annular light emitting surface 1101. The second reflection surface 1103 is located on the side of the light guide 110 away from the annular light emitting surface 1101, and the third reflection 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 reflection surface 1104.

[0016] 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 arrow in the figure, the light emitted by the first light source 120 is emitted from the annular light emitting surface 1101 after being reflected by the first reflecting surface 1102 and the second reflecting surface 1103. Since the first reflecting surface 1102 is located in the inner ring area of ​​the annular light emitting surface 1101, the light of 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.

[0017] 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 arrow in , the light emitted by the second light source 130 is emitted from the annular light emitting surface 1101 after being reflected by the third reflecting surface 1104 and the second reflecting surface 1103. Since the third reflecting surface 1104 is located in the outer ring area of ​​the annular light emitting surface 1101, the light of 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.

[0018] The first light source 120 and the second light source 130 in the present 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.

[0019] 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 to the edge position of the light guide 110, and the light of the second light source 130 is transmitted from the edge position to the center direction of the light guide 110. Moreover, 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.

[0020] The luminous power of the first light source 120 mentioned above is higher than the luminous power of the second light source 130. It can also be understood here that 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 the present application has multiple usage modes.

[0021] In 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 reflection surface 1102 and the second reflection 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 brighter and has a stronger illumination. When soft light fill light is required, the light emitted by the second light source 130 is reflected by the third reflection surface 1104 and the second reflection 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.

[0022] 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 is more conducive to reducing the difficulty of layout of the electronic device.

[0023] In addition, in the solutions of the related art, the electronic device needs to have two light outlet positions, which results in a large number of openings in the electronic device, which in turn leads to poor consistency in the appearance 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 outlet position, which can achieve both lighting and soft fill light, so the number of openings in the electronic device is small, which is conducive to improving the consistency of the appearance 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 flash fill light and the soft ring fill light arranged in parallel in the related art, the fill light 100 in the present application has a simple structure and low cost.

[0024] Compared with the solutions in the related art, the fill light 100 disclosed in the present application is 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.

[0025] In one solution, the light guide 110 may be a transparent structural member, and the transparent structural member here may be made of materials such as glass or resin. In this case, the annular light emitting surface 1101, the first reflection surface 1102, the second reflection surface 1103, and the third reflection 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 may be performed on part of the outer surface of the transparent structural member, for example, a silver coating process may be performed on part of the outer surface of the transparent structural member to form the first reflection surface 1102, the second reflection surface 1103, and the third reflection surface 1104. Alternatively, a reflective texture is provided on part of the outer surface of the transparent structural member to form the first reflection surface 1102, the second reflection surface 1103, and the third reflection surface 1104.

[0026] 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 reflecting surface 1102, the second reflector has the above-mentioned second reflecting surface 1103, the third reflector has the above-mentioned third reflecting 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 of the light in the above-mentioned solution is a transparent structural member, while the light-guiding medium in this solution is air.

[0027] In another optional embodiment, if 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-color injection molded, and at this time, the light guide 110 is integrally injection molded.

[0028] Specifically, the annular light emitting surface 1101 and the second reflecting surface 1103 are arranged on opposite sides of the transparent light guide portion 111. The transparent light guide portion 111 is further provided with a first light incident surface 1105 and a second light incident surface 1106. The first light incident surface 1105 can be arranged opposite to the first light source 120. At this time, the light emitted by the first light source 120 enters the transparent light guide portion 111 through the first light incident surface 1105. The second light incident surface 1106 is arranged opposite to the second light source 130. The second reflecting surface 1103 surrounds the first light incident surface 1105. The second light incident surface 1106 is arranged on the side of the second reflecting surface 1103 away from the first light incident surface 1105. At this time, the light emitted by the second light source 130 enters the transparent light guide portion 111 through the second light incident surface 1106.

[0029] Compared with the structure in which the light guide 110 is a split structure, this solution has a compact structure and is easier to assemble, thereby improving the modularity of the fill light 100. At the same time, the light of the fill light 100 is reflected or refracted in the same light guide medium, so the reflection efficiency of the reflected light of each part is the same, thereby further improving the optical performance of the fill light 100.

[0030] Compared with the solution in which the light guide 110 can be a transparent structural member, the transparent light guide part 111, the first reflective part 112 and the second reflective part 113 are integrally injection molded. The cost and difficulty of the integral injection molding process are lower than the coating process, so the cost is lower. In addition, the transparent light guide part 111, the first reflective part 112 and the second reflective part 113 are integrally injection molded, so the transparent light guide part 111, the first reflective part 112 and the second reflective part 113 are not easy to fall off and separate, while the reflective surface formed by the coating is easy to fall off, thereby avoiding the problem of the coating falling off into the electronic device and causing the electronic components of the electronic device to short-circuit.

[0031] 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 highly reflective plastic material.

[0032] Further, 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 arranged around the receiving groove 1111, and the first reflective portion 112 may be injection molded in 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.

[0033] 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.

[0034] 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.

[0035] In the above solution, the second reflective portion 113 is disposed around the circumferential side wall of the transparent light guide portion 111. At this time, the surface of the second reflective portion 113 that contacts the circumferential side wall of the transparent light guide portion 111 may be the second reflective surface 1103.

[0036] In an optional solution, at least one of the first reflective portion 112 and the second reflective portion 113 can be a white injection-molded structure, and the reflectivity of the white injection-molded structure is 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. At the same time, the first reflective portion 112 and the second reflective portion 113 also have a light-isolating effect, which can solve the problem of light absorption by double-sided adhesive.

[0037] 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 causing the risk of device exposure of the fill light 100.

[0038] Based on this, in another optional embodiment, the light guide 110 may further include a light isolation portion 114, and the light isolation portion 114 may be arranged on the side of the transparent light guide portion 111 away from the annular light emitting surface 1101. The light isolation portion 114 is arranged around the second reflective surface 1103, and the light isolation portion 114 is located between the second light incident surface 1106 and the second reflective surface 1103. In this solution, the light isolation portion 114 can separate the second reflective surface 1103 from the second light incident surface 1106, thereby shielding the light emitted by the second light source 130 toward the side of the second reflective surface 1103, thereby avoiding the risk of device exposure of the fill light 100.

[0039] 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 .

[0040] In another optional solution, the outer side wall of the light isolation portion 114 and the transparent light guide portion 111 may form an annular recess 115, and the annular recess 115 is used to separate the second light incident surface 1106 and the light isolation portion 114. In this solution, the annular recess 115 can reduce the intensity of the large-angle light of the second light source 130, and is also conducive to reducing the overall weight of the light guide 110, and is more conducive to making the light guide 110 thinner and lighter.

[0041] Optionally, the light isolation portion 114 can be a white injection molding structure, and the reflectivity of the white injection molding structure is greater than or equal to 95%. For example, the light isolation portion 114 can be made of white PC material. In this solution, when the light isolation portion 114 has a light isolation effect, the reflection efficiency of the light isolation portion 114 can be further improved, which is conducive to improving the light utilization rate of the second light source 130.

[0042] The first light incident surface 1105 in the above solution may be a planar structure.

[0043] 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 central position of the first light source 120 or the physical center line of the first light source 120. In this scheme, the arc-shaped concave surface has a more accurate light angle contraction effect on light rays diverging at a small angle. Therefore, by setting the first light incident surface 1105 as an arc-shaped concave surface, it is possible to better contract the light rays at a small angle, 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 utilization rate of the light rays. 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 conducive to reducing the stacking thickness of the light guide 110 and the first light source 120, and thus is conducive to reducing the volume of the fill light 100.

[0044] Specifically, the first light incident surface 1105 can be formed by rotating the first curve with the central optical axis of the first light source 120 as the rotation axis. The first curve here is the surface line type of the first light incident surface 1105, and the surface line type here refers to a line segment that forms a specified contour after rotating one circle along a certain rotation position. The first curve here can be a spline curve, a Bezier curve, and of course, other forms of curves, which are not limited in this article.

[0045] In the above solution, the second light source 130 is located at the edge of the light guide 110, which can be understood as the second light source 130 and the light guide 110 are eccentrically arranged, so in order to improve the uniformity of light distribution to the light guide 110. In another optional embodiment, the second light incident surface 1106 can be provided with a light distribution texture structure, and the light distribution texture structure can be opposite to the light output 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 and then incident on the third reflective surface 1104, so that the uniformity of the soft light ring can be further improved, thereby further improving the optical performance of the fill light 100.

[0046] 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.

[0047] 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 arranged on the annular surface. Alternatively, the second light incident surface 1106 is provided with a plurality of light distribution texture structures arranged at intervals, and each light distribution texture structure is opposite to a second light source 130. The light distribution texture structure here may be a Fresnel texture. At this time, each light distribution texture structure may be rotationally symmetric about the central optical axis of the second light source 130.

[0048] In an optional solution, the first reflection surface 1102, the second reflection surface 1103, the third reflection 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 reflection surface 1102, the second reflection surface 1103, the third reflection 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 reflected light from the first reflection surface 1102, the second reflection surface 1103 and the third reflection surface 1104 in the circumferential direction thereof is uniform, thus making the light of the fill light 100 more uniform.

[0049] In addition, the light emitted by the first light source 120 is reflected between the first reflection surface 1102 and the second reflection surface 1103, and the light emitted by the second light source 130 is reflected between the third reflection surface 1104 and the second reflection surface 1103, so the first reflection surface 1102 and the second reflection surface 1103 form a coaxial double reflection structure, and the third reflection surface 1104 and the second reflection surface 1103 form a coaxial double reflection structure. Therefore, the use of the coaxial double reflection structure to guide light can reduce the number of reflections of light, and can guide the light to the annular light-emitting surface 1101 to the maximum extent, so that the luminous energy efficiency of the fill light 100 can be greatly improved. Therefore, even if the fill light 100 has a single light source, it has sufficient energy. This solution guides light through the coaxial double reflection structure, so the number of light sources of the fill light 100 is effectively reduced, so that the fill light 100 has a smaller volume, lower cost, and better heat dissipation performance, thereby improving the performance of the fill light 100.

[0050] 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 be formed by rotating the corresponding curves with the central optical axis of the first light source 120 as the rotation axis, which will not be described in detail herein.

[0051] In an optional embodiment, the first reflective surface 1102 includes a convex area 1102a, where the convex area 1102a is relative to the first reflective portion 112. If relative to the transparent light guide portion 111, the first reflective surface 1102 is a concave area, that is, the inner surface of the accommodating groove 1111. The distance between any point on the convex area 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 area 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.

[0052] In this scheme, 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 the light reflected to the outer edge, thereby improving the reflection performance of the light, thereby reducing the number of reflections of the light, and further improving the optical performance of the fill light 100.

[0053] In another optional embodiment, the first reflective surface 1102 may further include a plane region 1102b, which may be located on a side of the convex region 1102a away from the central optical axis of the first light source 120 and arranged around the convex region 1102a. It can be understood here that the outer diameter of the convex region is the inner diameter of the plane region 1102b. In this solution, the plane 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.

[0054] In another optional solution, the second reflective surface 1103 may include a plurality of annular light guide grooves 1103a, and the plurality of annular light guide grooves 1103a may be continuously arranged in a direction perpendicular to the central optical axis of the first light source 120. In this solution, the side wall of each annular light guide groove 1103a can be precisely dimmed, so the refraction angle of the light can be precisely controlled by optimizing the angle of the side wall of the annular light guide groove 1103a, so that the light emitted by the first light source 120 and the second light source 130 is closer to the center position of the annular light emitting surface 1101, thereby improving the fill light performance of the fill light 100.

[0055] Furthermore, in the direction from the outer edge of the second reflective surface 1103 to its inner edge, the distance between each annular light guide groove 1103a and the annular light emitting surface 1101 gradually decreases. At this time, the closer the annular light guide 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, a plurality of annular light guide 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 central area of ​​the annular light emitting surface 1101, thereby further improving the illuminance distribution of the projection surface of the fill light 100, and further making the illuminance distribution of the projection surface of the fill light 100 more uniform.

[0056] 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 the 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. At this time, the peripheral side of the third reflective surface 1104 is inclined to extend outward, and the third reflective surface 1104 is a trumpet-shaped structure. The surface of the trumpet-shaped structure can increase the reflection angle of the light reflected to the outer edge, thereby improving the reflection performance of the light, thereby reducing the number of reflections of the light, and further improving the optical performance of the fill light 100.

[0057] 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.

[0058] The electronic device disclosed in the present 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. The fill light 100 is arranged in the device body. Specifically, the fill light 100 is installed in the housing 200, and the first light source 120 and the second light source 130 are electrically connected to the circuit board of the device body. The circuit board here 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.

[0059] In another optional solution, the device body may include a housing 200, a camera decoration 300 and a lens 400, wherein the camera decoration 300 and the lens 400 are used to shield the camera module located in the housing 200. The housing 200 is provided with a mounting hole, and the camera decoration 300 is installed in the mounting hole. In a specific solution, the mounting hole can be provided on the battery cover of the housing 200, and in this case, the camera decoration 300 is used to decorate the rear camera module of the electronic device. The lens 400 covers the camera decoration 300, and a light-transmitting hole is provided on the camera decoration 300, and external light enters the camera module through the light-transmitting hole, thereby realizing the shooting function. The camera decoration 300 is also provided with a through hole, and the through hole here is arranged in parallel with the light-transmitting hole. At least part of the light guide 110 of the fill light 100 is located in the through hole, and the through hole is used to expose the light guide 110. One side of the light guide 110 provided with an annular light-emitting surface 1101 can be bonded to the lens 400.

[0060] 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.

[0061] Optionally, a bonding 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 through the bonding layer. The bonding layer here can be a bonding structure such as double-sided tape, glue, etc. Of course, the bonding layer can also be other bonding structures, which is not limited herein. The camera decoration 300 in the present application can be a combination structure of multiple pieces bonded together, and the specific structure of the camera decoration 300 can be flexibly selected, which is not limited herein.

[0062] The electronic device disclosed in the embodiments of the present application may be a smart phone, a tablet computer, an e-book reader, a wearable device (such as a smart watch), an electronic game console, or the like. The embodiments of the present application do not limit the specific types of electronic devices.

[0063] 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 the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fill light, characterized in that: include: A light guide, the light guide having an annular light emitting surface, a first reflection surface, a second reflection surface and a third reflection surface, the annular light emitting surface and the first reflection surface are located on the same side of the light guide, and the annular light emitting surface is arranged around the first reflection surface, the second reflection surface is located on a side of the light guide away from the annular light emitting surface, and the third reflection surface is 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; Wherein, 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 comprises 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 a receiving groove, the receiving 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 receiving groove, the first reflecting portion is injection-molded in the receiving groove, and the surface of the first reflecting portion that contacts the inner surface of the receiving 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 reflecting surface, and is located between the second light incident surface and the second reflecting 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, and an 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 a 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 comprises 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 the 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 reflecting 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 in which the annular light emitting surface points to the second reflecting 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 invention 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 one side of the light guide provided with the annular light emitting surface is bonded to the lens.

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