Lamplight assembly and electronic equipment

Abstract

The invention discloses a light assembly and electronic equipment, and relates to the technical field of electronic products. The light assembly comprises a light-emitting module and a light guide lampshade, the light guide lampshade is in a plate shape, and the light guide lampshade comprises a first end face and a second end face which are opposite to each other; the light-emitting module is located on the side portion of the first side face of the light guide lampshade, the first side face is connected with the first end face and the second end face, and light emitted by the light-emitting module enters from the first side face and exits from the first end face.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a lighting assembly and an electronic device. Background Art

[0002] Light and shadow play a role in shaping the texture and shape of the subject in photography, and can also further highlight the subject's personality, expression and emotions. Soft, uniform fill light and stable, efficient image processing algorithms are the prerequisites for taking photos with clear priorities and rich aesthetics. In order to improve the quality of shooting, many electronic devices are equipped with fill lights.

[0003] In the related art, the fill light of electronic equipment usually adopts a structural design of lamp beads superimposed on a lampshade, and its spatial structure is specifically as follows: the lamp beads are located at the center below the lampshade, and in the thickness direction, the lamp beads are located on the mainboard or FPC, leaving a gap with the lampshade. In the related art, since the lampshade, lamp beads and circuit board are usually stacked in sequence along the thickness direction of the electronic device, the fill light structure needs to occupy a large thickness space, which is not conducive to the thinness of the electronic device. Summary of the invention

[0004] The present application provides a lighting assembly and an electronic device, which can reduce the thickness space required to be occupied by the lighting assembly in the electronic device, thereby facilitating the thinning and lightening of the electronic device.

[0005] In a first aspect, the present application provides a lighting assembly, comprising: a light-emitting module and a light-guiding lampshade, wherein the light-guiding lampshade is in a plate shape and comprises a first end face and a second end face opposite to each other;

[0006] The light emitting module is located on the side of the first side surface of the light guide lampshade, the first side surface is connected to the first end surface and the second end surface, and the light emitted by the light emitting module is incident from the first side surface and emitted from the first end surface.

[0007] In a second aspect, the present application provides an electronic device, comprising a camera module and the lighting assembly described in the first aspect, wherein the lens of the camera module is inserted into the mounting hole.

[0008] In the embodiment of the present application, since the light-emitting module is located on the side of the first side of the light-guiding lamp cover, compared with stacking the light-emitting module and the light-guiding lamp cover along the thickness direction of the electronic device, it is beneficial to reduce the thickness space required to be occupied by the lighting component, thereby facilitating the realization of lightweight and thin electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of the propagation of the second light in the lighting assembly in an embodiment of the present application;

[0010] Figure 2is a schematic diagram of the propagation of the first light in the lighting assembly in an embodiment of the present application;

[0011] Figure 3 is a schematic diagram of the structure of a lighting assembly in an embodiment of the present application;

[0012] Figure 4 is a schematic diagram of the distribution of sub-regions of the diffuse reflection area in the first light-homogenizing layer in an embodiment of the present application;

[0013] Figure 5 It is a structural exploded view of the connection between the lighting assembly and the camera module in the embodiment of the present application;

[0014] Figure 6 It is a structural exploded diagram of the electronic device in the embodiment of the present application. DETAILED DESCRIPTION

[0015] 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, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0016] 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 data 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, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0017] In the following, in conjunction with the accompanying drawings, a lighting assembly and an electronic device provided in an embodiment of the present application are described in detail through specific embodiments and their application scenarios.

[0018] Please see 1 to Figure 5 The embodiment of the present application provides a lighting assembly, including: a light emitting module 100 and a light guide lampshade 200, wherein the light guide lampshade 200 is plate-shaped and includes a first end surface 261 and a second end surface 241 opposite to each other;

[0019] The light emitting module 100 is located on the side of the first side surface 280 of the light guide lampshade 200 . The first side surface 280 is connected to the first end surface 261 and the second end surface 241 . The light emitted by the light emitting module 100 is incident from the first side surface 280 and emitted from the first end surface 261 .

[0020] Among them, the above-mentioned lighting assembly can be used as a fill light or flash light for various electronic devices, wherein the electronic device can be various electronic devices with a fill light or flash light, for example, the electronic device can be a mobile phone, a tablet computer, a notebook, a smart watch, an e-book, a learning machine, etc.

[0021] It is understandable that when the above-mentioned light assembly is installed in an electronic device, the first end face 261 can be located inside the back cover of the electronic device. Since the first end face 261 can be located inside the back cover of the electronic device, that is, the thickness direction of the light-emitting module 100 is consistent with the thickness direction of the electronic device, and the light-emitting module 100 is located on the side of the first side face 280 of the light-guiding lampshade 200, it is possible to avoid the light-emitting module 100 and the light-guiding lampshade 200 from stacking in the thickness direction of the electronic device, which is conducive to the thinness of the electronic device, wherein the first end face 261 and the second end face 241 are two end faces facing each other in the thickness direction of the light-guiding lampshade 200.

[0022] The light emitting module 100 can be any light emitting module 100. When the light emitting module 100 emits light, the light can penetrate the first side surface 280 into the light guide lampshade 200, propagate in the light guide lampshade 200, and finally emerge from the first end surface 261 to form a fill light source.

[0023] See also Figure 1 In some embodiments of the present application, the light guide lamp cover 200 is in a plate shape, the first end face 261 and the second end face 241 are two opposite side faces in the thickness direction of the light guide lamp cover 200, and the first side face 280 is a side face of the light guide lamp cover 200 connecting the edge of the first end face 261 and the edge of the second end face 241.

[0024] In this embodiment, since the light-emitting module 100 is located on the side of the first side surface 280 of the light-guiding lamp cover 200, compared with stacking the light-emitting module 100 and the light-guiding lamp cover 200 along the thickness direction of the electronic device, it is beneficial to reduce the thickness space required to be occupied by the lighting component, thereby facilitating the realization of lightweight and thin electronic equipment.

[0025] Optionally, the light guide lampshade 200 is provided with a mounting hole 270 penetrating the first end surface 261 and the second end surface 241 , and the first end surface 261 includes an annular light-transmitting area 2611 arranged around the opening of the mounting hole 270 .

[0026] The mounting hole 270 may be used to mount various devices in the electronic device, for example, may be used to mount the lens of the camera module 500 , that is, the lens of the camera module 500 may be inserted into the mounting hole 270 .

[0027] It is understandable that when the above-mentioned light assembly is installed in an electronic device, the annular light-transmitting area 2611 can be located in the back cover of the electronic device, and the lens of the camera module 500 of the electronic device can be inserted into the mounting hole 270. In this way, since the light assembly is arranged around the lens of the camera module 500, it is conducive to achieving uniform fill light for the camera module 500. At the same time, since the annular light-transmitting area 2611 can be located in the back cover of the electronic device, that is, the thickness direction of the light-emitting module 100 is consistent with the thickness direction of the electronic device, and the light-emitting module 100 is located on the side of the first side surface 280 of the light-guiding lampshade 200, it is possible to avoid the light-emitting module 100 and the light-guiding lampshade 200 from stacking in the thickness direction of the electronic device, which is conducive to the thinness of the electronic device, wherein the first end surface 261 and the second end surface 241 are two end surfaces facing each other in the thickness direction of the light-guiding lampshade 200.

[0028] The light-emitting module 100 can be any light-emitting module 100 capable of emitting light. In the process of emitting light from the light-emitting module 100, the light can penetrate the first side surface 280 and enter the light-guiding lampshade 200, and can propagate in the light-guiding lampshade 200, so that light can pass through each position of the annular light-transmitting area 2611, so that the annular light-transmitting area 2611 forms a supplementary light ring.

[0029] It can be understood that, in the first end face 261 of the light guide lamp cover 200, other areas except the annular light-transmitting area 2611 are not light-transmitting, and the second end face 241 is not light-transmitting. In this way, the light in the light guide lamp cover 200 can only pass through the annular light-transmitting area 2611 to the outside of the light assembly to form the fill light ring.

[0030] In this embodiment, since the light-transmitting area in the embodiment of the present application is an annular light-transmitting area 2611, that is, the light-emitting module 100 in the embodiment of the present application emits an annular light source, and the inner side of the annular light-transmitting area 2611 is provided with a mounting hole 270, in this way, the related devices originally located below the light-emitting module 100 in the electronic device can be passed through the mounting hole 270. Compared with stacking the light-emitting module 100 and the related devices along the thickness direction of the electronic device, it is beneficial to further reduce the thickness space required to be occupied by the light-emitting module 100 and the related devices as a whole, which is beneficial to further lightweighting of the electronic device.

[0031] Optionally, the light-guiding lampshade 200 includes a lampshade layer 210, a first light-distributing layer 220 and a first reflective layer 230 which are stacked in sequence, the first end surface 261 is located on the side of the light-guiding lampshade 200 that is opposite to the first light-distributing layer 220, the area of ​​the lampshade layer 210 located in the first side surface 280 is the light incident area of ​​the first side surface 280, the first light-distributing layer 220 includes a diffuse reflection area 221 and a light-transmitting gap area 222, and the light in the lampshade layer 210 can pass through the light-transmitting gap area 222 and be incident on the first reflective layer 230.

[0032] The lampshade layer 210 may be made of various light-guiding materials. For example, in some embodiments of the present application, the lampshade layer 210 may be a transparent plastic layer, wherein the transparent plastic material may include at least one of the following materials: polystyrene (PS), polycarbonate (PC), polymethyl methacrylate (PMMA) is a high molecular polymer, polyethylene (PE), polyvinylidene difluoride (PVDF). The first light-homogenizing layer 220 may be various types of light-homogenizing films. The first reflective layer 230 may be various types of reflective films.

[0033] The diffuse reflection area 221 may be an area with an uneven surface. Specifically, micro-texture etching may be performed on the side of the first light-distributing layer 220 facing the lampshade layer 210, or micro-texture coating may be provided, or micro-texture printing may be performed to form the diffuse reflection area 221. In some embodiments of the present application, the diffuse reflection area 221 is a micro-texture etching area on the surface of the first light-distributing layer 220.

[0034] Specifically, since the angle of the light entering the lampshade layer 210 from the light emitting module 100 may be within a certain range, the light with a small angle may pass through the lampshade layer 210 after being reflected by the first reflecting layer 230. The light with a large angle may be totally reflected between the two end surfaces of the lampshade layer 210 to propagate to a position farther from the light emitting module 100, wherein the critical angle between the small angle and the large angle depends on the material of the lampshade layer 210. In some embodiments of the present application, since the refractive indexes of PS, PC, PMMA, PE, and PVDF vary from 1.41 to 1.60, and the lampshade layer 210 is made of at least one of PS, PC, PMMA, PE, and PVDF, the refractive index N2 of the lampshade layer 210 is between 1.41 and 1.60, and the refractive index of the lampshade layer 210 is greater than the refractive index N1=1 of the air; when the light is emitted from the lampshade layer 210 to the boundary, as long as the incident angle (90°-θ2) of the light inside the lampshade layer 210 is greater than or equal to a certain critical angle, the light no longer has a refractive component, but is totally reflected. The specific light path is as follows: Figure 1 As shown, according to the refraction theorem:

[0035] N1sinθ1=N2sinθ2

[0036]

[0037] Based on this, since the larger θ1 is, the larger θ2 is, see Figure 1 , the maximum value of θ1 is 90°, therefore, taking θ1 as 90° and substituting it into the above formula can obtain the maximum value of θ2, and accordingly, it can be obtained that the minimum value of the incident angle (90°-θ2) of the light that is totally reflected ranges from 38.7° to 45.2°, that is, the value range of the above critical angle is 38.7° to 45.2°, therefore, it can be determined that when the incident angle of the light inside the lampshade layer 210 is greater than or equal to the critical angle, the light is totally reflected, and when the incident angle of the light inside the lampshade layer 210 is less than the critical angle, it can pass through the light-transmitting gap area 222 of the first light-homogenizing layer 220 and enter the first reflecting layer 230, and the first reflecting layer 230 can reflect the incident light, and the light reflected by the first reflecting layer 230 can sequentially pass through the light-transmitting gap area 222 of the first light-homogenizing layer 220 and the lampshade layer 210, and pass out from the annular light-transmitting area 2611. For ease of understanding, hereinafter, the light whose incident angle is less than the critical angle is referred to as the first light; and the light whose incident angle is greater than or equal to the critical angle is referred to as the second light.

[0038] When the second light inside the lampshade layer 210 propagates to the above-mentioned diffuse reflection area 221, the diffuse reflection area 221 forms a surface light source. After the second light is emitted through the diffuse reflection area 221, the angle relative to the normal is concentrated between 60° and 70°. At this time, it can pass through the end face of the lampshade layer 210 facing away from the second end face 241, and pass through the annular light-transmitting area 2611 to the outside.

[0039] The above-mentioned light-transmitting gap area 222 can be a hollow area in the first light-distributing layer 220. The light incident from the lampshade layer 210 to the light-transmitting gap area 222 can be incident to the first reflecting layer 230. The first reflecting layer 230 can reflect the incident light, and the light reflected by the first reflecting layer 230 can sequentially pass through the light-transmitting gap area 222 of the first light-distributing layer 220 and the lampshade layer 210, and pass through the annular light-transmitting area 2611.

[0040] In this embodiment, since the first light can pass through the annular light-transmitting area 2611 after one reflection, and the second light can be totally reflected between the two end faces of the lampshade layer 210 to propagate to a position farther away from the light-emitting module 100, and the second light can also pass through the annular light-transmitting area 2611 after passing through the diffuse reflection area 221, in this way, the position of the diffuse reflection area 221 can be adjusted, which is helpful to ensure that the light intensity at various positions of the annular light-transmitting area 2611 is relatively uniform.

[0041] Since there are reflection and refraction losses in the process of light propagation in the lampshade layer 210, the corresponding light intensity is weaker at a position farther from the light-emitting module 100. Based on this, the following application embodiment further designs the distribution of the diffuse reflection area 221 to alleviate the problem of excessive differences in light intensity in different areas of the annular light-transmitting area 2611 due to the loss in the light propagation process.

[0042] Optionally, the light entering the light guide lampshade 200 from the first side surface 280 includes a first light and a second light;

[0043] The first light can pass through the light-transmitting gap area 222 and enter the first reflective layer 230, and after being reflected by the first reflective layer 230, the first light can pass through the light-transmitting gap area 222 and the lampshade layer 210 in sequence and pass out from the annular light-transmitting area 2611;

[0044] The second light can be totally reflected in the lampshade layer 210, and diffusely reflected when propagating to the diffuse reflection area 221, and the diffusely reflected light can pass through the lampshade layer 210 and go out from the annular light-transmitting area 2611;

[0045] The diffuse reflection area 221 includes a plurality of sub-areas, and the plurality of sub-areas are arranged at intervals along a direction perpendicular to the first side surface 280, and the farther away from the first side surface 280, the denser the distribution of the sub-areas, and among the plurality of sub-areas, there is a light-transmitting gap area 222 between any two adjacent sub-areas.

[0046] The first light may be a light whose incident angle inside the lampshade is less than the critical angle. Figure 2 Since this part of the light can pass through the annular light-transmitting area 2611 after one reflection by the first reflective layer 230, the position of the first light in the annular light-transmitting area 2611 is closer to the light-emitting module 100, and it can also be called proximal light. Since the proximal light is closer to the light-emitting module 100, the corresponding attenuation degree is smaller, and therefore, the light intensity of the proximal light is higher.

[0047] The second light may be a light whose incident angle inside the lampshade is greater than or equal to the critical angle. Figure 2 The path indicated by the middle arrow undergoes total reflection, so this part can propagate to a farther position relative to the light-emitting module 100, and when propagating to the diffuse reflection area 221, it passes through the annular light-transmitting area 2611. Therefore, the position of the second light ray in the annular light-transmitting area 2611 is relatively far from the light-emitting module 100, and can also be called distal light.

[0048] It can be understood that the above sub-regions are micro-textured etching regions, that is, each sub-region is a separate diffuse reflection region. Among the above multiple sub-regions, the shapes of different sub-regions can be the same or different, and the specific shape of each sub-region can be set as needed. For example, see Figure 4 In some embodiments of the present application, the sub-region is a long strip-shaped region, and the length direction of the sub-region is parallel to the first side surface 280. The farther from the first side surface 280, the denser the distribution of the sub-regions, that is, the farther from the first side surface 280, the smaller the spacing between the sub-regions, wherein the first side surface 280 is located Figure 4 The left side of the first light-distributing layer 220 is shown in FIG.

[0049] It should be noted that, the denser the sub-areas are, the higher the intensity of the second light beam diffusely reflected in the area and passing through the annular light-transmitting area 2611 .

[0050] In this embodiment, since the first light mainly passes through the area of ​​the annular light-transmitting area 2611 that is closer to the light-emitting module 100, the light intensity in the area of ​​the annular light-transmitting area 2611 that is closer to the light-emitting module 100 is stronger. Therefore, fewer sub-areas can be set below the area that is closer to the light-emitting module 100 to reduce the intensity of the second light passing through the area that is closer to the light-emitting module 100. Correspondingly, more sub-areas can be set below the area that is farther away from the light-emitting module 100 to increase the intensity of the second light passing through the area that is farther away from the light-emitting module 100. In this way, it can be ensured that the light intensity at each position of the annular light-transmitting area 2611 is relatively uniform, so as to alleviate the problem of excessive difference in light intensity in different areas of the annular light-transmitting area 2611 due to losses in the light propagation process.

[0051] In other embodiments of the present application, the diffuse reflection area 221 may also be arranged on the end surface of the lampshade layer 210 facing the first light-distributing layer 220, and the diffuse reflection area 221 includes a plurality of sub-areas, the plurality of sub-areas are arranged at intervals in a direction perpendicular to the first side surface 280, and the farther from the first side surface 280, the denser the distribution of the sub-areas. Such an arrangement may also realize the same function as the diffuse reflection area 221 in the above embodiment, and its realization principle is similar to that of the above embodiment, and will not be described again here to avoid repetition.

[0052] Optionally, the light guide lampshade 200 further includes a support plate 240, the support plate 240 and the first reflective layer 230 are stacked, and the support plate 240 is located on the side of the first reflective layer 230 facing away from the first light homogenizing layer 220, the end surface of the support plate 240 facing away from the first reflective layer 230 is the second end surface 241, and the support plate 240 includes an extension portion extending from one side of the first side surface 280 and extending toward a side away from the first side surface 280;

[0053] The light-emitting module 100 includes a first light-emitting unit 120, an arc-shaped mounting plate and a first reflective film 110, one end of the arc-shaped mounting plate is fixedly connected to the extension portion, the other end of the arc-shaped mounting plate is fixedly connected to an end of the lampshade layer 210 away from the first light-distributing layer 220, the arc-shaped mounting plate is an arc-shaped plate body protruding toward a side away from the first side surface 280, and the first reflective film 110 covers a surface of the arc-shaped mounting plate facing the first side surface 280;

[0054] The first light emitting unit 120 is located between the first reflective film 110 and the extending portion, and the first light emitting unit 120 is connected to the extending portion, and a light emitting surface of the first light emitting unit 120 faces the first reflective film 110 .

[0055] It is understood that the cross-sectional shape of the arc-shaped mounting plate may be Figure 1 The shape of the first reflective film 110 is the same as that of Figure 1 The structure of the arc-shaped mounting plate is not shown in the figure, by covering the first reflective film 110 on the surface of the arc-shaped mounting plate facing the first side surface 280, the arc-shaped mounting plate can support and protect the first reflective film 110. The material of the arc-shaped mounting plate can be various deformable insulating hard plates.

[0056] The support plate 240 can be made of various insulating hard plates, and the material of the support plate 240 is a non-light-transmitting material. The support plate 240 can be used as a supporting structure of the lighting assembly, and the support plate 240 can also be used as a reinforcement plate for the flexible printed circuit (FPC) 130 in the lighting assembly, see Figure 1 In some embodiments of the present application, the light-emitting module 100 also includes FPC130, the FPC130 and the extension portion are stacked, and the extension portion is fixedly connected to the FPC130, the first light-emitting unit 120 is electrically connected to the FPC130, and the first light-emitting unit 120 is fixedly installed on the surface of the FPC130.

[0057] See also Figure 3 Since there is a certain gap between the annular light-transmitting area 2611 and the first light-emitting unit 120, if the light entering the lampshade layer 210 from the first side 280 directly irradiates the first end face 261, a large amount of light will be absorbed by the non-light-transmitting area on the left side of the annular light-transmitting area 2611, and the light absorbed by the non-light-transmitting area cannot propagate to the annular light-transmitting area 2611. Based on this, in order to ensure that most of the light entering the lampshade layer 210 from the first side 280 can propagate to the annular light-transmitting area 2611, the light entering the lampshade layer 210 from the first side 280 can be mainly directed toward the first reflective layer 230 side, rather than toward the first end face 261 side, so that most of the light entering the lampshade layer 210 from the first side 280 can be reflected by the first reflective layer 230 at least once, and most of the light reflected once by the first reflective layer 230 can propagate to the annular light-transmitting area 2611.

[0058] See also Figure 1 and Figure 2 , the light emitted by the first light emitting unit 120 can directly irradiate the inner wall of the first reflective film 110, the first reflective film 110 can reflect the received light, and the light reflected by the first reflective film 110 can be Figure 1 and Figure 2The direction indicated by the arrow in enters the lampshade layer 210 from the first side 280, that is, the light entering the lampshade layer 210 from the first side 280 is mainly toward the first reflective layer 230 side, rather than toward the first end surface 261 side, so that most of the light entering the lampshade layer 210 from the first side 280 can be reflected by the first reflective layer 230 at least once.

[0059] In this embodiment, by positioning the first light-emitting unit 120 between the first reflective film 110 and the extension portion, and connecting the first light-emitting unit 120 to the extension portion, the light-emitting surface of the first light-emitting unit 120 faces the first reflective film 110. In this way, it can be ensured that most of the light entering the lampshade layer 210 from the first side surface 280 can be reflected by the first reflective layer 230 at least once, so that most of the light entering the lampshade layer 210 from the first side surface 280 can be transmitted to the annular light-transmitting area 2611, thereby improving the light display effect of the lighting assembly.

[0060] Optionally, the light emitting module 100 further includes a second light emitting unit 140, the second light emitting unit 140 is located between the first reflective film 110 and the extension portion, and the second light emitting unit 140 is connected to the extension portion, and a light emitting surface of the second light emitting unit 140 faces the first reflective film 110;

[0061] The first light-emitting unit 120 and the second light-emitting unit 140 are located on both sides of a first straight line 290, and a maximum distance between the first light-emitting unit 120 and the first straight line 290 is greater than a radius of the mounting hole 270, and a maximum distance between the second light-emitting unit 140 and the first straight line 290 is greater than a radius of the mounting hole 270. The first straight line 290 is a straight line in the plane where the light-emitting module 100 is located, perpendicular to the first side surface 280, and intersecting with the axis of the mounting hole 270.

[0062] See also Figure 3 The first straight line 290 may be a symmetrical center line of the mounting surface of the extension portion, and the mounting surface is the end surface of the extension portion facing away from the second end surface 241 .

[0063] The maximum distance between the first light emitting unit 120 and the first straight line 290 may refer to: the distance between the position farthest from the first straight line 290 in the light emitting portion of the first light emitting unit 120 and the first straight line 290, for example, see Figure 3In some embodiments of the present application, the first light-emitting unit 120 includes a first light-emitting element 121 and a second light-emitting element 122. The maximum distance between the first light-emitting unit 120 and the first straight line 290 may refer to: the maximum distance between the second light-emitting element 122 and the first straight line 290. Correspondingly, the maximum distance between the second light-emitting unit 140 and the first straight line 290 may refer to: the distance between the position of the light-emitting portion of the second light-emitting unit 140 that is farthest from the first straight line 290 and the first straight line 290, for example, see Figure 3 In some embodiments of the present application, the second light-emitting unit 140 includes a third light-emitting element 141 and a fourth light-emitting element 142 , and the maximum distance between the second light-emitting unit 140 and the first straight line 290 may refer to: the maximum distance between the fourth light-emitting element 142 and the first straight line 290 .

[0064] See also Figure 5 In actual applications, the mounting hole 270 may be provided with a lens, and due to the obstruction of the lens, the light in the lampshade layer 210 cannot pass through the mounting hole 270 from the left side of the mounting hole 270 to the right side of the mounting hole 270. Based on this, if the light-emitting module 100 is arranged at a position close to the first straight line 290, it will be difficult for the light to propagate to the right side of the mounting hole 270, so that the light intensity at the position on the right side of the mounting hole 270 in the annular light-transmitting area 2611 is weak.

[0065] In this embodiment, the first light-emitting unit 120 and the second light-emitting unit 140 are located on both sides of the first straight line 290, and the maximum distance between the first light-emitting unit 120 and the first straight line 290 is greater than the radius of the mounting hole 270, and the maximum distance between the second light-emitting unit 140 and the first straight line 290 is greater than the radius of the mounting hole 270. In this way, the light emitted from the area of ​​the first light-emitting unit 120 and the second light-emitting unit 140 that is farther away from the first straight line 290 than the mounting hole 270 will not be blocked by the lens installed in the mounting hole 270 during the process of propagating toward one side of the mounting hole 270, and can thus be smoothly propagated to the right side of the mounting hole 270, which is beneficial to ensure that the light intensity on the left and right sides of the annular light-transmitting area 2611 is relatively balanced.

[0066] Optionally, the first light-emitting unit 120 includes at least two light-emitting elements with different color temperatures, and the second light-emitting unit 140 includes at least two light-emitting elements with different color temperatures.

[0067] The number of light-emitting elements included in the first light-emitting unit 120 can be set as required, and accordingly, the number of light-emitting elements included in the second light-emitting unit 140 can also be set as required. Figure 3The first light-emitting unit 120 includes a first light-emitting element 121 and a second light-emitting element 122, and the color temperature of the first light-emitting element 121 is higher than the color temperature of the second light-emitting element 122. The second light-emitting unit 140 includes a third light-emitting element 141 and a fourth light-emitting element 142, and the color temperature of the third light-emitting element 141 is higher than the color temperature of the fourth light-emitting element 142.

[0068] It is understandable that the user can adjust the color temperature of the lamp assembly in the control interface of the electronic device. For example, a color temperature adjustment control bar can be set in the control interface, and the user can adjust the color temperature of the light assembly by dragging the color temperature adjustment control bar. When the user increases the color temperature of the light assembly, the brightness of the first light-emitting component 121 and the third light-emitting component 141 gradually increases, and the brightness of the second light-emitting component 122 and the fourth light-emitting component 142 gradually decreases until the second light-emitting component 122 and the fourth light-emitting component 142 are extinguished, at which time the color temperature is maximum. When the user decreases the color temperature of the light assembly, the brightness of the first light-emitting component 121 and the third light-emitting component 141 gradually decreases, and the brightness of the second light-emitting component 122 and the fourth light-emitting component 142 gradually increases until the first light-emitting component 121 and the third light-emitting component 141 are extinguished, at which time the color temperature is minimum.

[0069] In this embodiment, by making the first light-emitting unit 120 include at least two light-emitting components with different color temperatures, and the second light-emitting unit 140 include at least two light-emitting components with different color temperatures, the user can adjust the color temperature of the light-emitting component as needed, thereby improving the fill light effect of the light-emitting component.

[0070] Optionally, the light-guiding lampshade 200 further includes a diffusion layer 250 and a light-enhancing layer 260, wherein the diffusion layer 250 and the light-enhancing layer 260 are respectively located on the side of the lampshade layer 210 facing away from the first light-distributing layer 220, and the lampshade layer 210, the diffusion layer 250 and the light-enhancing layer 260 are stacked in sequence, and the end face of the light-enhancing layer 260 facing away from the diffusion layer 250 is the first end face 261.

[0071] The diffusion layer 250 may be any diffusion film, wherein the diffusion layer 250 may include a granular diffusion sheet, and the diffusion layer 250 may diffuse the light viewing angle through the diffusion sheet. The light enhancement layer 260 may be any light enhancement structure or light enhancement film, for example, see Figure 1 and Figure 2 In some embodiments of the present application, the light-enhancing layer 260 is a light-enhancing prism layer, and the end surface of the light-enhancing layer 260 facing away from the diffusion layer 250 has arranged prism-shaped protrusions, and the prism-shaped protrusions can form a frosted texture. The light-enhancing prism layer is a prism light-enhancing sheet, which can focus the diffused light within a certain angle, increase the brightness of the light within this range, and form quasi-parallel light emission at the proximal end of the annular light-transmitting area 2611.

[0072] In this embodiment, a diffusion layer 250 and a light-enhancing layer 260 are sequentially arranged on the side of the lampshade layer 210 facing away from the first light-distributing layer 220. In this way, the diffusion layer 250 can diffuse the light viewing angle. At the same time, the light-enhancing layer 260 can focus the diffused light within a certain angle, thereby increasing the brightness of the light within the range and forming quasi-parallel light emission at the proximal end of the annular light-transmitting area 2611, thereby improving the fill light effect of the light-emitting component.

[0073] Optionally, the first end face 261 is provided with an annular light-guiding boss 262 protruding along the annular light-transmitting area 2611, and the lighting assembly also includes a circular lens 400 and an annular lens 300, the circular lens 400 is located in the annular light-guiding boss 262, and the outer wall of the circular lens 400 is fitted with the inner wall of the center hole of the annular light-guiding boss 262, the annular light-guiding boss 262 is located in the center hole of the annular lens 300, and the inner wall of the center hole of the annular light-guiding boss 262 is fitted with the outer wall of the annular light-guiding boss 262.

[0074] The material of the annular light-guiding boss 262 may be the same as that of the light-enhancing layer 260. Specifically, the annular light-guiding boss 262 may be integrally formed with the light-enhancing layer 260, so that the light propagating to the light-enhancing layer 260 may be propagated to the outside through the annular light-guiding boss 262. In addition, the annular light-guiding boss 262 may also be made of other light-guiding materials, for example, annular light-transmitting glass.

[0075] The circular lens 400 may be a light-incoming lens located at the outermost end of the camera module 500. The annular lens 300 may be a decorative lens.

[0076] In this embodiment, an annular light-guiding boss 262 is provided on the first end face 261, so that the light emitted from the annular light-transmitting area 2611 can be transmitted to the outside along the annular light-guiding boss 262, thereby reducing the risk of reflection and crosstalk between the emitted light of the lighting component and the incident light of the camera module 500.

[0077] It can be understood that in some other embodiments of the present application, the above-mentioned annular light-guiding boss 262 may not be provided. In this case, the circular lens 400 and the annular lens 300 may be two different areas of a whole piece of circular glass, that is, a whole piece of circular glass is covered on the surface of the above-mentioned first end face 261, and the circular glass simultaneously covers the first end face 261 and the opening of the closed mounting hole 270, and the specific setting can be carried out as needed.

[0078] Optionally, the inner side of the mounting hole 270 , the inner side wall of the center hole of the annular light-guiding boss 262 , and the surface of the annular lens 300 facing the first end face 261 are respectively provided with light-blocking coatings.

[0079] The light-blocking coating may be a coating formed by coating various types of light-blocking coating materials in the related art.

[0080] In this embodiment, a light-blocking coating is respectively provided on the inner side of the mounting hole 270 and the inner side wall of the center hole of the annular light-guiding boss 262. In this way, the light-blocking coating can achieve relative isolation between the outgoing light of the lighting component and the incident light of the camera module 500, so as to further reduce the risk of reflection and crosstalk between the outgoing light of the lighting component and the incident light of the camera module 500. In addition, a light-blocking coating is provided on the surface of the annular lens 300 facing the first end face 261. In this way, it can be ensured that the lighting component can only emit light to the outside through the annular light-transmitting area 2611, thereby forming an annular fill light.

[0081] An embodiment of the present application further provides an electronic device, which includes a camera module 500 and the lighting assembly described in the above embodiment, and the lens of the camera module 500 is inserted into the mounting hole 270 .

[0082] The electronic device may be any electronic device with a fill light or a flash light, for example, the electronic device may be a mobile phone, a tablet computer, a notebook, a smart watch, an e-book, a learning machine, etc.

[0083] See also Figure 6 In the embodiment of the present application, the electronic device is a mobile phone as an example to further explain the structure of the electronic device. The electronic device includes a back cover 600, a middle frame 700 and a display module 800 which are stacked in sequence. The light guide lamp cover 200 is located between the display module 800 and the back cover 600. The light guide lamp cover 200 can be arranged on the main board or the middle frame 700 depending on the stacking situation. For example, a hole can be made in the main board or in the main board and the middle frame 700 at the same time to install the light guide lamp cover 200 at the corresponding hole position.

[0084] See also Figure 5 , which is a structural exploded view of the connection between the camera module 500 and the lighting assembly in the embodiment of the present application, wherein the lens of the camera module 500 can pass through the mounting hole 270 and face the circular lens 400.

[0085] In this implementation, since the electronic device includes the lighting assembly described in the above embodiment, the electronic device can implement various processes of the lighting assembly in the above embodiment and has the same beneficial effects, which will not be described again to avoid repetition.

[0086] 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 lighting assembly, characterized in that: include: A light-emitting module and a light-guiding lampshade, wherein the light-guiding lampshade is plate-shaped and comprises a first end face and a second end face opposite to each other; The light emitting module is located on the side of the first side surface of the light guide lampshade, the first side surface is connected to the first end surface and the second end surface, and the light emitted by the light emitting module is incident from the first side surface and emitted from the first end surface.

2. The lighting assembly according to claim 1, characterized in that: The light guide lampshade is provided with a mounting hole penetrating the first end surface and the second end surface, and the first end surface includes an annular light-transmitting area arranged around the opening of the mounting hole.

3. The lighting assembly according to claim 2, characterized in that: The light-guiding lampshade includes a lampshade layer, a first light-distributing layer and a first reflective layer which are stacked in sequence. The first end face is located on the side of the light-guiding lampshade facing away from the first light-distributing layer. The area of ​​the lampshade layer located on the first side surface is the light incident area of ​​the first side surface. The first light-distributing layer includes a diffuse reflection area and a light-transmitting gap area. The light in the lampshade layer can pass through the light-transmitting gap area and be incident on the first reflective layer.

4. The lighting assembly according to claim 3, characterized in that: The light entering the light guide lampshade from the first side includes a first light and a second light; The first light can pass through the light-transmitting gap area and enter the first reflective layer, and after being reflected by the first reflective layer, the first light can sequentially pass through the light-transmitting gap area and the lampshade layer and pass out from the annular light-transmitting area; The second light can be totally reflected in the lampshade layer, and the second light can be diffusely reflected when propagating to the diffuse reflection area, and the diffusely reflected light can pass through the lampshade layer and out of the annular light-transmitting area; The diffuse reflection area includes a plurality of sub-areas, and the plurality of sub-areas are arranged at intervals along a direction perpendicular to the first side surface. The farther away from the first side surface, the denser the distribution of the sub-areas. Among the plurality of sub-areas, there is a light-transmitting gap area between any two adjacent sub-areas.

5. The lighting assembly according to claim 3, characterized in that: The light guide lampshade further includes a support plate, the support plate and the first reflective layer are stacked, and the support plate is located on a side of the first reflective layer facing away from the first light homogenizing layer, an end surface of the support plate facing away from the first reflective layer is the second end surface, and the support plate includes an extension portion extending from one side of the first side surface and extending toward a side away from the first side surface; The light-emitting module comprises a first light-emitting unit, an arc-shaped mounting plate and a first reflective film, one end of the arc-shaped mounting plate is fixedly connected to the extension portion, the other end of the arc-shaped mounting plate is fixedly connected to an end of the lampshade layer away from the first light-distributing layer, the arc-shaped mounting plate is an arc-shaped plate body convex toward a side away from the first side surface, and the first reflective film covers a surface of the arc-shaped mounting plate toward a side of the first side surface; The first light emitting unit is located between the first reflective film and the extending portion, and the first light emitting unit is connected to the extending portion, and a light emitting surface of the first light emitting unit faces the first reflective film.

6. The lighting assembly according to claim 5, characterized in that: The light-emitting module further includes a second light-emitting unit, which is located between the first reflective film and the extension portion, and is connected to the extension portion, and a light-emitting surface of the second light-emitting unit faces the first reflective film; The first light-emitting unit and the second light-emitting unit are located on both sides of a first straight line, and the maximum distance between the first light-emitting unit and the first straight line is greater than the radius of the mounting hole, and the maximum distance between the second light-emitting unit and the first straight line is greater than the radius of the mounting hole. The first straight line is a straight line in the plane where the light-emitting module is located, perpendicular to the first side surface, and intersecting with the axis of the mounting hole.

7. The lighting assembly according to claim 6, characterized in that: The first light-emitting unit includes at least two light-emitting elements with different color temperatures, and the second light-emitting unit includes at least two light-emitting elements with different color temperatures.

8. The lighting assembly according to claim 3, characterized in that: The light-guiding lampshade further includes a diffusion layer and a light-enhancing layer, wherein the diffusion layer and the light-enhancing layer are respectively located on the side of the lampshade layer facing away from the first light-distributing layer, and the lampshade layer, the diffusion layer and the light-enhancing layer are stacked in sequence, and the end face of the light-enhancing layer facing away from one end of the diffusion layer is the first end face.

9. The lighting assembly according to claim 2, characterized in that: The first end face is provided with an annular light-guiding boss protruding along the annular light-transmitting area, and the lighting assembly also includes a circular lens and an annular lens, the circular lens is located in the annular light-guiding boss, and the outer side wall of the circular lens is fitted with the inner side wall of the center hole of the annular light-guiding boss, the annular light-guiding boss is located in the center hole of the annular lens, and the inner side wall of the center hole of the annular light-guiding boss is fitted with the outer side wall of the annular light-guiding boss.

10. An electronic device, characterized in that: It comprises a camera module and the lighting assembly as described in any one of claims 2 to 9, wherein the lens of the camera module is inserted into the mounting hole.

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