Supplementary lighting structure and electronic device

Abstract

The present application relates to the technical field of communications, and provides a supplementary lighting structure and an electronic device. The supplementary lighting structure comprises a light emitting source and a light guide member. The light guide member comprises a light incident portion, reflecting portions and light exit portions. The light incident portion is located at the center of the light guide member. The light exit portions surround the light incident portion and are located at the edges of the light guide member, and the light exit portions are of a square structure. The light emitting source and the light incident portion are arranged opposite to each other, and light emitted by the light emitting source is reflected by the reflecting portions and then emitted from the light exit portions. The light guide member comprises a first surface and a second surface opposite to each other, the first surface is the side of the light guide member close to the light emitting source, the part of the light incident portion located on the first surface is a light incident surface, the light incident surface is a spherical surface with the sphere center located on one side of the light emitting source, and the part of the light incident portion located on the second surface is a conical surface with the vertex away from one side of the light emitting source.

Description

Fill light structure and electronic equipment

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 20, 2023, with application number 202311769677.7 and invention name “Fill-light structure and electronic device”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a fill light structure and electronic equipment. Background Art

[0004] 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, in low-light environments and night scenes, it's difficult to capture clear photos, and it's also difficult to provide a good experience when recording or live streaming. Therefore, some electronic devices are equipped with fill lights to provide additional illumination to ensure good imaging in low-light and night scenes.

[0005] In the related art, common fill lights are mostly ring-shaped structures, which have a simple structure and a low compatibility between the ring-shaped appearance and the square appearance of the camera decorative ring. Summary of the Invention

[0006] The purpose of the embodiments of the present application is to provide a fill light structure and an electronic device that can solve the problem that the existing fill light structure is single and the annular appearance has low compatibility with the square appearance of the camera decorative ring.

[0007] In a first aspect, an embodiment of the present application provides a fill light structure, comprising: a luminous light source and a light guide, the light guide comprising a light input portion, a reflective portion, and a light output portion, the light input portion being located at the center of the light guide, the light output portion surrounding the light input portion and located at an edge of the light guide, the light output portion being a square structure, the luminous light source being disposed opposite the light input portion, and light emitted by the luminous light source being reflected by the reflective portion and then emitted from the light output portion;

[0008] The light guide member includes a first surface and a second surface relative to each other, the first surface being a surface of the light guide member close to the light source, the portion of the light incident portion located on the first surface being the light incident surface, the light incident surface being a spherical surface with its center located on the side of the light source, and the portion of the light incident portion located on the second surface being a conical surface with its vertex away from the side of the light source.

[0009] In a second aspect, an embodiment of the present application provides an electronic device, comprising a housing and the fill light structure described in the first aspect;

[0010] The fill light structure is arranged on the housing. The housing is provided with a mounting hole. The light guide member of the fill light structure is mounted in the mounting hole.

[0011] In the embodiment of the present application, the fill light structure includes a luminous light source and a light guide, the light guide includes a light input portion, a reflective portion and a light output portion, the light input portion is located at the center of the light guide, the light output portion surrounds the light input portion and is located at the edge of the light guide, the light output portion is a square structure, the luminous light source and the light input portion are arranged opposite to each other, and the light emitted by the luminous light source is reflected by the reflective portion and then emitted from the light output portion. In this way, the square-structured light output portion located at the edge of the light guide makes the fill light structure have a square appearance, the fill light structure is more diversified, and the square fill light structure is more compatible with the square appearance of the camera decorative ring; the light guide includes a first surface and a second surface opposite to each other. The second surface, the first surface is the surface of the light guide close to the light source, the part of the light entrance portion located on the first surface is the light entrance surface, the light entrance surface is a spherical surface with the center located on the side of the light source, and the part of the light entrance portion located on the second surface is a conical surface with the vertex away from the side of the light source, that is, the light entrance surface is a concave surface that is concave toward the second surface. Since the concave surface has a divergent effect on the light, the light emitted by the light source is refracted by the light entrance surface and reaches the outer side surface area of ​​the conical surface. After reflection by the outer side surface area of ​​the conical surface, the reflection angle of the light reflected to the outer edge can be increased, thereby reducing the number of reflections of the light in the light guide, thereby achieving the effect of improving the utilization rate of light energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG1 is a cross-sectional schematic diagram of a light-filling structure according to an embodiment of the present application;

[0013] FIG2 is a top view of the fill light structure according to an embodiment of the present application, viewed from the top to the bottom of the light guide;

[0014] FIG3 is a bottom view of the fill light structure according to an embodiment of the present application, viewed from the bottom to the top of the light guide;

[0015] FIG4 is a schematic structural diagram of a toothed surface according to an embodiment of the present application;

[0016] FIG5 is a schematic diagram of a fill light structure according to an embodiment of the present application;

[0017] FIG6 is an enlarged view corresponding to frame A of the toothed surface in FIG5 ;

[0018] FIG7 is an enlarged view corresponding to frame B of the tooth pattern surface in FIG5 ;

[0019] FIG8 is a second schematic diagram of the fill light structure according to an embodiment of the present application;

[0020] FIG. 9 is a schematic diagram showing light rays reflected from the conical surface of the light-filling structure according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described 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 are within the scope of protection of this application.

[0022] 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 orders other than those illustrated or described herein. Furthermore, the terms "first," "second," and the like generally distinguish objects of a class and do not limit the number of objects. For example, the first object may be one or more.

[0023] The fill light structure provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0024] As shown in Figures 1 to 9 , embodiments of the present application disclose a fill light structure for use in electronic devices. The disclosed fill light structure includes a light source 100 and a light guide 200 . The light guide 200 includes a light input portion 210 , a reflective portion 220 , and a light output portion 230 . The light input portion 210 is located at the center of the light guide 200 , while the light output portion 230 surrounds the light input portion 210 and is located at the edge of the light guide 200 .

[0025] The light source 100 may be a semiconductor light emitting diode (LED), a high pressure sodium lamp, a metal halide lamp, etc. Of course, the light source 100 of the fill light structure may also be of other structures, which is not limited herein.

[0026] It should be understood that the light incident portion 210 being located at the center of the light guide 200 means that the light incident portion 210 is located in the middle area of ​​the light guide 200, and the center of the light incident portion 210 is the center of the light guide 200, or the center of the light incident portion 210 is the center of the fill light structure.

[0027] The light output portion 230 is located at the edge of the light guide 200 surrounding the light input portion 210, which means that the light output portion 230 is located in the edge area of ​​the light guide 200, and the light output portion 230 is arranged around the light input portion 210, and the center of the light output portion 230 is the center of the light input portion 210, that is, the center of the light output portion 230 is the center of the light guide 200, or the center of the light output portion 230 is the center of the fill light structure.

[0028] As shown in Figures 2 and 3 , the light exit portion 230 has a square shape. As will be understood, "square" is a general term for both rectangles and squares. In the embodiment of the present application, the light exit portion 230 has a square ring-like structure, and the projection of the light exit portion 230 onto the plane where the light source resides forms a rectangular ring or a square ring. In other words, the projections of the outer and inner edges of the light exit portion 230 onto the plane where the light source resides form a rectangle or square centered at the same point.

[0029] Optionally, the projection of the outer edge of the light emitting portion 230 onto the plane of the light source is a square. That is, the outer edge of the light emitting portion 230 includes four edges of equal length and perpendicular to each other. Here, the square-shaped light emitting portion 230, located at the edge of the light guide 200, gives the fill light structure a square appearance. This results in uniform light output and a more diverse fill light structure. Furthermore, the square fill light structure better matches the square appearance of the camera bezel, further facilitating the layout of the camera bezel.

[0030] In an optional embodiment, referring to Figure 2 , the outer frame length a of the square light-emitting portion 230 can be 25mm to 30mm, such as 27.5mm, significantly larger than the size of existing ring-shaped soft lights (approximately 10mm). The width b of each light-emitting portion 230 can be 0.8mm to 1.5mm, such as 1.2mm, creating a slender visual aesthetic. The specific dimensions of the light-emitting portion 230 are determined by the size and layout of the camera decorative ring and are not limited in this embodiment.

[0031] The light guide 200 includes a first surface and a second surface that are opposite to each other. It is understood that the first surface and the second surface are reference surfaces defined for the convenience of description. The first surface is the surface of the light guide 200 that is closest to the light source 100. The portion of the light incident portion 210 located on the first surface is the light incident surface 201. The light incident surface 201 is a spherical surface with its center located on the side of the light source 100, that is, the light incident surface 201 is a concave surface that is concave toward the second surface. The portion of the light incident portion 210 located on the second surface is the conical surface 202 with its vertex (see point P in FIG. 1 ) facing away from the light source 100.

[0032] Since the light incident surface 201 is a concave surface, the concave surface has a divergent effect on the light. After the light emitted by the light source 100 is refracted by the light incident surface 201, it reaches the outer side area of ​​the conical surface 202 (it should be understood that the outer side area of ​​the conical surface 202 is the side area of ​​the conical surface 202 close to the center of the fill light structure; the inner side area of ​​the conical surface 202 is the side area of ​​the conical surface 202 close to the center of the fill light structure). After reflection from the outer side area of ​​the conical surface 202, the reflection angle of the light reflected to the outer edge can be increased, thereby reducing the number of reflections of the light in the light guide 200, thereby achieving the effect of improving the utilization rate of light energy.

[0033] Referring to FIG. 1 , in some embodiments, the cross-sectional area of ​​the tapered surface 202 in a direction perpendicular to the central optical axis of the light source 100 gradually decreases as the second surface points toward the first surface. Thus, within the light guide 200, the surface of the tapered surface 202 can increase the reflection angle of light toward the outer edges, thereby reducing the number of light reflections within the light guide 200 and improving light energy utilization.

[0034] The central optical axis of the luminous light source 100 here can be understood as the central axis along the light-emitting direction of the luminous light source 100, or as the central axis of the physical center of the luminous light source 100, or as the central axis of the light guide 200.

[0035] Referring to FIG1 , during the fill light process, the light source 100 is disposed opposite the light input portion 210 , and the light emitted by the light source 100 (the dotted arrow in the figure indicates the light) is reflected by the reflective portion 220 and then emitted from the light output portion 230 . The light path is described in detail as follows:

[0036] After all the light emitted by the luminous light source 100 is refracted by the light incident surface 201 of the light incident portion 210 and enters the light guide 200, since the light incident surface 201 is a concave surface, the concave surface has a divergent effect on the light, so that more light can enter the light guide 200 and reach the outer side area of ​​the conical surface 202 opposite to the light incident surface 201, preventing part of the light from reaching the inner side area of ​​the conical surface 202, thereby avoiding waste of light energy; after being reflected by the outer side area of ​​the conical surface 202, the reflection angle of the light reflected to the outer edge can be increased, thereby reducing the number of reflections of the light in the light guide 200, thereby improving the utilization rate of light energy; thereafter, the light is emitted from the light output portion 230 after multiple reflections and propagation through the reflecting portion 220.

[0037] In some embodiments, the projection size of the light incident surface 201 on the first surface is larger than the projection size of the tapered surface 202 on the first surface. This can further ensure that the light passing through the light incident surface 201 reaches the outer side area of ​​the tapered surface 202, thereby avoiding light energy waste and improving light energy utilization.

[0038] To achieve precise light guidance, the surface shape of the light incident surface 201 must undergo multiple optical optimizations, and the final surface shape parameters are as follows: The final light incident surface 201 is a rotational surface, which is obtained by rotating the first curve around the central axis of the light source 100 as the rotation axis. The first curve here is the surface line shape of the light incident surface 201. The surface line shape here refers to the line segment that forms a specified contour after rotating one circle along a certain rotation position. The surface contour of the light incident surface 201 in this application is obtained by rotating the first curve one circle around the central axis.

[0039] Here, the first curve is a smooth curve with continuously changing curvature. The parameters of the first curve are as described in Table 1:

[0040] Table 1

[0041] In order to achieve precise light guidance, the surface shape of the conical surface 202 must undergo multiple optical optimizations. Referring to FIG8 , the final conical surface 202 is a rotational surface, which is obtained by rotating the second curve around its endpoint. The second curve is the surface line shape of the conical surface 202 .

[0042] Here, the second curve is a smooth curve with continuously changing curvature. The parameters of the second curve are as described in Table 2:

[0043] Table 2

[0044] In some embodiments, the portion of the light-emitting portion 230 located on the first surface is the light-emitting surface 203, the light-emitting surface 203 is an arc surface, and the first distance and the second distance of any light-emitting point on the light-emitting surface 203 are negatively correlated; wherein, the first distance is the distance between the light-emitting point and the first surface in the first direction, and the second distance is the distance between the projection point of the light-emitting point on the first surface and the projection point of the light source 100 on the first surface in the second direction, the first direction is the direction perpendicular to the first surface, and the first direction is specifically referred to the y direction of the coordinate system in Figure 1; the second direction is perpendicular to the first direction, and the second direction is specifically referred to the x direction of the coordinate system in Figure 1.

[0045] It should be understood that the first distance and the second distance of any light-emitting point on the light-emitting surface 203 are negatively correlated, meaning that the smaller the first distance of the light-emitting point, the larger the second distance. Referring to FIG. 1 , the farther the light-emitting point is from the center of the fill light structure, the smaller the first distance and the larger the second distance. In other words, the light-emitting surface 203 is a convex surface that rises toward the second surface.

[0046] Referring to Figure 1, during the fill light process, the light reaches the light-emitting surface 203 after multiple reflections and propagation through the reflective portion 220. Since the light-emitting surface 203 is a convex surface, the convex surface has a converging effect on the light. After the light is refracted by the light-emitting surface 203, the angle shrinks inward, reducing the divergence speed of the light in space, making the light energy more concentrated on the projection surface, increasing the proportion of available light, and further improving the utilization rate of light energy.

[0047] To achieve precise light guiding, the light emitting surface 203 must undergo multiple optical optimizations, and its final structure is a cylinder, which is obtained by translating the third curve along the length direction of the frame (the frame formed by the edge area of ​​the light guide 200).

[0048] Here, the third curve is a smooth curve with continuously changing curvature. The parameters of the third curve are as described in Table 3:

[0049] Table 3

[0050] 2 , in some embodiments, the light exit portion 230 includes a first light exit portion 2031, a second light exit portion 2032, a third light exit portion 2033, and a fourth light exit portion 2034 of equal length. The first light exit portion 2031 and the third light exit portion 2033 are arranged parallel to and opposite to each other, while the second light exit portion 2032 and the fourth light exit portion 2034 are arranged parallel to and opposite to each other. The first light exit portion 2031 is connected to the second light exit portion 2032 and the fourth light exit portion 2034, respectively, via an arc segment, and the third light exit portion 2033 is connected to the second light exit portion 2032 and the fourth light exit portion 2034, respectively, via an arc segment. In this way, the arc segments achieve a smooth transition between adjacent light exit portions and form the light exit portion 230 into a rounded square structure, which is more aesthetically pleasing.

[0051] For square light guides, the degree of rotational symmetry of the square shape is not as good as that of the circular shape, so it will destroy the symmetry of the light path of the entire fill light system, causing asymmetric light spot shapes on the fill light surface and uneven visual brightness in the square area.

[0052] In order to solve the above problems, in some embodiments, referring to Figures 1 and 4, the portion of the light-emitting portion 230 located on the second surface is a toothed surface 204, and the toothed surface 204 is opposite to the light-emitting surface 203; referring to Figures 6 and 7, the projection of the toothed surface 204 on the first surface is a plurality of arcs 205, and the center of the plurality of arcs 205 is the center of the fill light structure.

[0053] Here, the center of the multiple arcs 205 is the center of the fill light structure, that is, the center of the multiple arcs 205 is the central optical axis of the light source 100. It should be noted that the toothed surface 204 is centered on the center of the fill light structure, which can alleviate the problems of inconsistent brightness within the aperture area and deformation of the light spot on the projection surface caused by the asymmetric square-shaped light outlet (the edge area of ​​the light guide 200).

[0054] Optionally, the spacing between adjacent arcs 205 is the same, which can further alleviate the problem of inconsistent brightness within the aperture area and deformation of the light spot on the projection surface caused by the asymmetric square-shaped light outlet.

[0055] 1 , during the fill light process, the light emitted by the light source 100 can pass through the light incident surface 201 and enter the light guide 200 . After being reflected by the reflective portion 220 , the light is transmitted to the toothed surface 204 , and is reflected by the toothed surface 204 to be emitted from the light emitting surface 203 .

[0056] In some embodiments, referring to FIG. 4 , a plurality of tooth structures 206 forming a toothed surface 204 are connected to each other. In the second direction, each tooth structure 206 has a first inclined surface 11 and a second inclined surface 12. The first inclined surface 11 and the second inclined surface 12 form a V-shaped groove, and the opening direction of the V-shaped groove is away from the second surface.

[0057] Here, each tooth-grooved structure 206 provides a reflective slope with a large absolute slope value (i.e., the reflective slope formed by the first inclined surface 11 and the second inclined surface 12). These reflective slopes can reduce the incident angle and reflection angle of light, so that more light can be reflected by the tooth-grooved structure 206 on the tooth-grooved surface 204 and can smoothly reach the convex light surface 203, thereby improving energy efficiency.

[0058] In order to achieve precise light guidance, the toothed surface 204 must undergo multiple optical optimizations. The parameters of the final optimized arc-shaped toothed structure are as shown in Table 4:

[0059] Table 4

[0060] 4 , the tooth pattern structure inclination angle y can be understood as the angle between the first inclined surface 11 and the horizontal plane; the tooth pattern structure inclination angle x can be understood as the angle between the second inclined surface 12 and the horizontal plane.

[0061] In some embodiments, referring to FIG. 1 , the portion of the reflective portion 220 located on the first surface is the first reflective surface 207 , and the portion of the reflective portion 220 located on the second surface is the second reflective surface 208 . Both the first reflective surface 207 and the second reflective surface 208 are provided with a reflective film layer 209 .

[0062] Optionally, both the first reflective surface 207 and the second reflective surface 208 are adhered with a reflective silver film; or both the first reflective surface 207 and the second reflective surface 208 are plated with a reflective silver film, where the reflective silver film serves as the reflective film layer 209 .

[0063] It should be noted that each time light is reflected in the light guide 200 , there will be energy loss. By providing the reflective film layer 209 , the energy loss during light reflection can be further reduced, thereby further improving the overall energy efficiency of the fill light structure.

[0064] Among them, the first reflecting surface 207 includes a first reflecting plane 13 and a first step surface 14, and the second reflecting surface 208 includes a second reflecting plane 15 and a second reflecting arc surface 16; the first reflecting plane 13 is connected to the light incident surface 201 through the first step surface 14, and the second reflecting surface 208 is connected to the conical surface 202 through the second reflecting arc surface 16.

[0065] The first reflection plane 13 and the second reflection plane 15 are arranged parallel to and opposite to each other, so as to achieve alternating reflection of light on the first reflection plane 13 and the second reflection plane 15 .

[0066] Optionally, the first stepped surface 14 has a protruding portion 141 protruding toward the second surface.

[0067] Here, the structure of the light incident surface 201 is a smooth optical concave surface that can diverge the angle of light. The light incident surface 201 faces the light source 100. Due to the provision of the first stepped surface 14, not only is a transition connection achieved between the first reflective plane 13 and the light incident surface 201, but the position of the light incident surface 201 is also sunken relative to the first reflective plane 13, thereby ensuring the thickness of the light guide 200. The second reflective arc surface 16 achieves a transition connection between the second reflective surface 208 and the tapered surface 202.

[0068] In some embodiments, referring to Figures 1 and 3, the luminescent light source 100 includes multiple cold light sources 101 and multiple warm light sources 102, the multiple cold light sources 101 are symmetrical about the central optical axis of the luminescent light source 100, and the multiple warm light sources 102 are symmetrical about the central optical axis; the number of cold light sources 101 and warm light sources 102 is equal; the number of the conical surfaces 202 is equal to the number of the luminescent light sources (including the cold light sources 101 and the warm light sources 102), and each of the conical surfaces 202 corresponds to a light source (cold light source 101 or warm light source 102).

[0069] That is, the multiple cold light sources 101 and the multiple warm light sources 102 form a light source array, and the corresponding conical surfaces 202 also form a conical surface array.

[0070] Here, the central optical axis of the luminescent light source 100 can be understood as the central axis of the physical center of the luminescent light source 100 , or the central axis of the light guide 200 .

[0071] Each conical surface 202 corresponds to a light source. It should be understood that the tip of each conical surface 202 is aligned with the center of a light source.

[0072] It should be noted that, for the conical array, the light incident surface 201 can distribute the light emitted from the light source 100 so that more light will not reach the inner side area of ​​the conical surface 202 after refraction, but will reach the outer side area of ​​the conical surface 202; since the light reaching the inner area of ​​the conical array will be blocked by the adjacent conical surface 202 after reflection, it is difficult to continue to propagate and will be wasted. Therefore, for the conical array, the setting of the light incident surface 201 can further improve the light energy utilization rate of the fill light structure.

[0073] Here, the conical surface 202 is a rotationally symmetrical surface, which allows light to be reflected and emitted in different directions. See Figure 9, where the dashed lines represent light. Therefore, except for a small amount of light blocked by adjacent conical surfaces 202, the majority of light emitted from the cold light source 101 and the warm light source 102, after being reflected by the conical surface 202, is fully merged and evenly mixed as it propagates within the planar area (i.e., the reflection plane) of the light guide 200. This ensures that the light ultimately projected onto the fill light surface has a consistent color, without noticeable color temperature differences.

[0074] In one example, the light source array includes two warm-light LEDs and two cold-light LEDs. The conical surface array is formed by combining four identical conical surfaces 202. See Figure 2 , where the tips of the conical surfaces 202 are represented by black dots. See Figure 3 , where hollow black squares represent cold-light LEDs and solid black squares represent warm-light LEDs. Each LED is perfectly aligned with the tip of the conical surface 202 above it.

[0075] Figure 1 shows a two-dimensional cross-section of the light path of the fill light structure corresponding to this example. A cold light LED, a warm light LED, and the cone tips directly above them are all included in the two-dimensional cross-section. Specifically, the light path is described as follows:

[0076] After the light is emitted from the cold light LED lamp and the warm light LED lamp, it reaches the light incident surface 201. The light incident surface 201 is a concave surface. The concave surface has a divergent effect on the light, which can allow more light to enter the light guide 200. After the light is refracted by the light incident surface 201, it reaches the outer side area of ​​the conical surface 202. After being reflected by the conical surface 202, it begins to be reflected and propagated multiple times in the plane area (i.e., the reflection plane) of the light guide 200. The reflective film layer 209 set on the first reflective surface 207 of the light guide 200 and the reflective film layer 209 set on the second reflective surface 208 of the light guide 200 can improve the energy efficiency of light reflection and reduce reflection loss. After passing through the flat area, the light propagates to the toothed surface 204, and reaches the light-emitting surface 203 after reflection. Since the light-emitting surface 203 is a convex surface, the convex surface has a converging effect on the light. After the light is refracted by the light-emitting surface 203, the angle shrinks inward, reducing the divergence speed of the light in space, making the light energy more concentrated on the projection surface, increasing the proportion of available light, and further improving the utilization rate of light energy. After that, the light finally reaches the target position on the fill light surface, achieving the purpose of fill light.

[0077] The fill light structure of the embodiment of the present application has a rectangular field of view with a maximum field of view of ±40° when projecting illumination on a projection surface at a projection distance of 1000mm. The illumination evenly decreases as the field of view increases, and the performance is close to that of a traditional flash.

[0078] Based on the fill light structure disclosed in the embodiments of the present application, the embodiments of the present application also disclose an electronic device, comprising: a shell and the fill light structure described in any of the above embodiments; the fill light structure is arranged in the shell, the shell is provided with a mounting hole, and the light guide member of the fill light structure is installed in the mounting hole.

[0079] The electronic device disclosed in the present application further includes: a circuit board; the light source 100 of the fill light structure is arranged on the circuit board.

[0080] Here, the circuit board can be a main board or a sub-board of an electronic device. The light source 100 of the fill light structure is arranged on the circuit board, which supplies power to the light source 100 of the fill light structure and controls the light source 100 to be turned on and off.

[0081] Alternatively, the fill light structure can be a monolithic package that can be directly mounted on the electronic device's circuit board. The mounting hole is aligned with the fill light structure, allowing light emitted by the fill light structure to pass through the mounting hole and exit the electronic device's housing. In this case, since the fill light structure is a monolithic package, assembly is simplified and application in the electronic device is more convenient.

[0082] 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 structure, comprising a light source and a light guide, wherein the light guide comprises a light input portion, a reflective portion and a light output portion, wherein the light input portion is located at the center of the light guide, the light output portion surrounds the light input portion and is located at the edge of the light guide, the light output portion is a square structure, the light source is arranged opposite to the light input portion, and the light emitted by the light source is emitted from the light output portion after being reflected by the reflective portion; The light guide member includes a first surface and a second surface relative to each other, the first surface being a surface of the light guide member close to the light source, the portion of the light incident portion located on the first surface being the light incident surface, the light incident surface being a spherical surface with the center located on the side of the light source, and the portion of the light incident portion located on the second surface being a conical surface with the vertex away from the side of the light source.

2. The fill light structure according to claim 1, wherein: The portion of the light emitting portion located on the second surface is a light emitting surface, the light emitting surface is a curved surface, and the first distance and the second distance of any light emitting point on the light emitting surface are negatively correlated; Among them, the first distance is the distance between the light emitting point and the first surface in the first direction, the second distance is the distance between the projection point of the light emitting point on the first surface and the projection point of the light source on the first surface in the second direction, the first direction is the direction perpendicular to the first surface, and the second direction is perpendicular to the first direction.

3. The fill light structure according to claim 2, wherein: The portion of the light emitting portion located on the first surface is a toothed surface, the toothed surface is opposite to the light emitting surface, the projection of the toothed surface on the first surface is a plurality of arcs, and the centers of the plurality of arcs are the centers of the fill light structure.

4. The fill light structure according to claim 3, wherein: The distances between adjacent arcs are the same.

5. The fill light structure according to claim 3, wherein: The plurality of tooth structures forming the tooth surface are connected to each other. In the second direction, each of the tooth structures has a first inclined surface and a second inclined surface. The first inclined surface and the second inclined surface form a V-shaped groove. The opening direction of the V-shaped groove is away from the second surface.

6. The light-filling structure according to claim 1, wherein: A projection size of the light incident surface on the first surface is larger than a projection size of the tapered surface on the first surface.

7. The light-filling structure according to claim 1, wherein: The luminous light source comprises a plurality of cold light sources and a plurality of warm light sources, the plurality of cold light sources are symmetrical about the central optical axis of the luminous light source, the plurality of warm light sources are symmetrical about the central optical axis, and the number of the cold light sources is equal to the number of the warm light sources; The number of the conical surfaces is equal to the number of the light sources, and each of the conical surfaces corresponds to one of the light sources.

8. The fill light structure according to claim 1, wherein: The portion of the reflective portion located on the first surface is a first reflective surface, and the portion of the reflective portion located on the second surface is a second reflective surface. Both the first reflective surface and the second reflective surface are provided with a reflective film layer.

9. The fill light structure according to claim 8, wherein: The first reflection surface includes a first reflection plane and a first step surface, and the second reflection surface includes a second reflection plane and a second reflection arc surface; The first reflection plane is connected to the light incident surface through the first step surface, and the second reflection plane is connected to the conical surface through the second reflection arc surface.

10. The light-filling structure according to claim 1, wherein: The light-emitting portion includes a first light-emitting portion, a second light-emitting portion, a third light-emitting portion and a fourth light-emitting portion of equal length, the first light-emitting portion and the third light-emitting portion are parallel and oppositely arranged, the second light-emitting portion and the fourth light-emitting portion are parallel and oppositely arranged, the first light-emitting portion is respectively connected to the second light-emitting portion and the fourth light-emitting portion through an arc segment, and the third light-emitting portion is respectively connected to the second light-emitting portion and the fourth light-emitting portion through an arc segment.

11. An electronic device, comprising a housing and the fill light structure according to any one of claims 1 to 10; The fill-light structure is arranged on the housing, a mounting hole is provided on the housing, and a light guide member of the fill-light structure is mounted in the mounting hole.

12. The electronic device according to claim 11, wherein: Also includes: Circuit board; the light source of the fill light structure is arranged on the circuit board.

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