Light emitting module and light equalizing assembly

Abstract

The invention is suitable for the technical field of light emitting modules, and provides a light emitting module and a light uniformizing assembly.The light emitting module comprises a light emitting assembly and the light uniformizing assembly.The light emitting assembly is used for emitting light; the light uniformizing assembly is located on the light-emitting side of the light-emitting assembly and comprises a light uniformizing body and a first light uniformizing structure, the light-emitting face of the light uniformizing body or the light-entering face of the light uniformizing body is provided with the first light uniformizing structure, the first light uniformizing structure comprises a plurality of first light uniformizing protrusions which are sequentially arranged in the first direction, and the first light uniformizing protrusions extend in the second direction. Light emitted by the light-emitting assembly can be adjusted through the first light equalizing structure and irradiates the external environment. The first cross section contour of each first light equalizing bulge in the first direction is in a circular arc shape, the radius of the first cross section contour is R1, the height of the first cross section contour is H1, the center-to-center distance between every two adjacent first light equalizing bulges is P1, R1 is smaller than or equal to 0.5 mm, H1 is smaller than or equal to R1, and P1 is larger than or equal to 0.5 mm.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of light-emitting modules, and more particularly to a light-emitting module and a light-uniformizing assembly. BACKGROUND

[0002] To realize thinness and uniform brightness distribution, a conventional strip-shaped atmosphere lamp usually needs to use a complex multi-component optical system, including a light guide plate, a multi-layer reflective sheet, a diffusion plate, and a positive light-emitting LED (Light-Emitting Diode) structure. Although the complex multi-component optical system can meet the basic lighting and visual effect requirements, it has defects such as complicated assembly process, high material cost, low system light efficiency, and large power consumption. SUMMARY

[0003] The purpose of the embodiments of the application is to provide a light-emitting module and a light-uniformizing assembly, aiming to solve the technical problems of complicated assembly process, high material cost, low system light efficiency, and large power consumption of the strip-shaped atmosphere lamp in the prior art.

[0004] To achieve the above-mentioned purpose, according to one aspect of the application, a light-emitting module is provided, which comprises a light-emitting assembly and a light-uniformizing assembly, wherein the light-emitting assembly is used for emitting light; the light-uniformizing assembly is located on the light-emitting side of the light-emitting assembly, and comprises a light-uniformizing main body and a first light-uniformizing structure, the light-emitting surface of the light-uniformizing main body or the light-incident surface of the light-uniformizing main body is provided with the first light-uniformizing structure, the first light-uniformizing structure comprises a plurality of first light-uniformizing protrusions arranged in sequence along a first direction, the first light-uniformizing protrusions extend along a second direction, and the light emitted by the light-emitting assembly can be adjusted by the first light-uniformizing structure and irradiated to the external environment; the first cross-sectional profile of the first light-uniformizing protrusion in the first direction is a circular arc, the radius of the first cross-sectional profile is R1, the height of the first cross-sectional profile is H1, and the distance between the center lines of two adjacent first light-uniformizing protrusions is P1, wherein R1≤0.5mm, H1≤R1, wherein the light-incident surface of the light-uniformizing main body is the light-emitting surface of the light-uniformizing main body, the first direction is perpendicular to the second direction, and both the first direction and the second direction are parallel to the light-emitting surface of the light-uniformizing main body, and the center line of the first light-uniformizing protrusion is parallel to the second direction.

[0005] Optionally, the light uniformity assembly further comprises a second light uniformity structure, the light exit surface of the light uniformity body is provided with the first light uniformity structure, and the light entrance surface of the light uniformity body is provided with the second light uniformity structure; the second light uniformity structure comprises a plurality of second light uniformity protrusions arranged in sequence along a third direction, and the second light uniformity protrusions extend along a fourth direction; the light emitted by the light emitting assembly can be adjusted by the second light uniformity structure and the first light uniformity structure and irradiated to the external environment; a second cross-sectional profile of the second light uniformity protrusion in the third direction is a circular arc, a radius of the second cross-sectional profile is R2, a height of the second cross-sectional profile is H2, and a spacing between center lines of adjacent two second light uniformity protrusions is P2, wherein R2≤0.5mm, H2≤R2, wherein the light entrance surface of the light uniformity body is close to the light emitting assembly, the third direction is perpendicular to the fourth direction, and the third direction and the fourth direction are both parallel to the light entrance surface of the light uniformity body, and the center line of the second light uniformity protrusion is parallel to the fourth direction.

[0006] Optionally, the second direction and the fourth direction have a preset included angle, and the size of the preset included angle is a, wherein 0°<a<90°; or, the second direction is parallel to the fourth direction.

[0007] Optionally, the light emitting assembly comprises a first light emitting device group, the first light emitting device group comprises a plurality of first light emitting devices, the plurality of first light emitting devices are arranged at intervals along a first direction, a spacing between the first light emitting device and the light uniformity assembly is X1, and a spacing between centers of adjacent two first light emitting devices is X2, wherein X2≤2.3X1.

[0008] Optionally, the light emitting assembly comprises a plurality of first light emitting device groups, and the plurality of first light emitting device groups are arranged at intervals along a second direction.

[0009] Optionally, the light emitting assembly comprises a second light emitting device group, the second light emitting device group comprises a plurality of second light emitting devices, the plurality of second light emitting devices are arranged at intervals along the first direction or the third direction, a spacing between the second light emitting device and the light uniformity assembly is X1, and a spacing between centers of adjacent two second light emitting devices is X3, wherein X3≤2.3X1.

[0010] Optionally, the light emitting assembly comprises a plurality of second light emitting device groups; when the plurality of second light emitting devices are arranged at intervals along the first direction, the plurality of second light emitting device groups are arranged at intervals along the second direction; and when the plurality of second light emitting devices are arranged at intervals along the third direction, the plurality of second light emitting device groups are arranged at intervals along the fourth direction.

[0011] According to another aspect of the present application, a light homogenizing assembly is provided, which is suitable for a light emitting module having a light emitting assembly, the light homogenizing assembly is located at a light emitting side of the light emitting assembly, the light homogenizing assembly comprises a light homogenizing body and a first light homogenizing structure, the light emitting surface of the light homogenizing body or the light entering surface of the light homogenizing body is provided with the first light homogenizing structure, the first light homogenizing structure comprises a plurality of first light homogenizing protrusions arranged in sequence along a first direction, the first light homogenizing protrusions extend along a second direction, the light emitted by the light emitting assembly can be adjusted by the first light homogenizing structure and irradiated to the external environment; the first cross-sectional profile of the first light homogenizing protrusion in the first direction is a circular arc, the radius of the first cross-sectional profile is R1, the height of the first cross-sectional profile is H1, and the distance between the center lines of two adjacent first light homogenizing protrusions is P1, wherein R1≤0.5mm, H1≤R1, wherein the light emitting surface of the light homogenizing body away from the light emitting assembly is the light emitting surface of the light homogenizing body, the first direction is perpendicular to the second direction, and the first direction and the second direction are both parallel to the light emitting surface of the light homogenizing body, and the center line of the first light homogenizing protrusion is parallel to the second direction.

[0012] Optionally, the light homogenizing assembly comprises a second light homogenizing structure, the light emitting surface of the light homogenizing body is provided with the first light homogenizing structure, the light entering surface of the light homogenizing body is provided with the second light homogenizing structure, the second light homogenizing structure comprises a plurality of second light homogenizing protrusions arranged in sequence along a third direction, the second light homogenizing protrusions extend along a fourth direction, the light emitted by the light emitting assembly can be adjusted by the second light homogenizing structure and the first light homogenizing structure and irradiated to the external environment; the second cross-sectional profile of the second light homogenizing protrusion in the third direction is a circular arc, the radius of the second cross-sectional profile is R2, the height of the second cross-sectional profile is H2, and the distance between the center lines of two adjacent second light homogenizing protrusions is P2, wherein R2≤0.5mm, H2≤R2, wherein the light entering surface of the light homogenizing body close to the light emitting assembly is the light entering surface of the light homogenizing body, the third direction is perpendicular to the fourth direction, and the third direction and the fourth direction are both parallel to the light entering surface of the light homogenizing body, and the center line of the second light homogenizing protrusion is parallel to the fourth direction.

[0013] Optionally, the second direction and the fourth direction have a preset included angle, the size of the preset included angle is a, wherein 0°<a<90°; or, the second direction is parallel to the fourth direction.

[0014] The light-emitting module provided by the application has the beneficial effects that, compared with the prior art, the light-emitting module provided by the application directly realizes high-uniformity brightness distribution of the light-emitting surface without relying on traditional light guide plates, diffusion plates and other multi-layer optical elements, through the special design of the arc-shaped first light-uniformizing protrusion and the directional light-emitting light-emitting assembly, the light emitted by the light-emitting assembly can be adjusted through a single optical assembly, the light efficiency level of a traditional complex optical system is realized, compared with the prior art, the light-emitting module provided by the application greatly reduces the number of optical elements used, improves the optical efficiency while significantly reducing the system power consumption of the light-emitting module, and when the light-emitting assembly adopts a side light-emitting architecture, the light-emitting assembly and the light-uniformizing assembly can at least partially coincide in the thickness direction of the light-emitting module, which is beneficial to realize the light-emitting module in a light and thin manner, and provides higher design flexibility and adaptability for various application scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 A structure schematic diagram of the light-uniformizing assembly provided by the embodiments of the application is shown in the figure.

[0017] Figure 2 A partial structure schematic diagram of the light-uniformizing assembly with the first light-uniformizing structure provided by the embodiments of the application is shown in the figure.

[0018] Figure 3 A partial structure schematic diagram of the light-uniformizing assembly with the first light-uniformizing structure and the second light-uniformizing structure provided by the embodiments of the application is shown in the figure.

[0019] Figure 4 A partial schematic diagram of the light-uniformizing assembly with R1 equal to 0.5 mm, H1 equal to 0.5 mm and P1 equal to 1 mm provided by the embodiments of the application is shown in the figure.

[0020] Figure 5 A partial schematic diagram of the light-uniformizing assembly with R1 equal to 0.5 mm, H1 equal to 0.8 mm and P1 equal to 1 mm provided by the embodiments of the application is shown in the figure.

[0021] Figure 6 A luminance diagram of the light-uniformizing assembly with R1 equal to 0.25 mm, H1 equal to 0.25 mm and P1 equal to 0.5 mm provided by the embodiments of the application is shown in the figure.

[0022] Figure 7 a luminance map of a uniform light assembly provided by an embodiment of the present application, where R1 is equal to 0.5mm, H1 is equal to 0.5mm, and P1 is equal to 1mm;

[0023] Figure 8 a luminance map of a uniform light assembly provided by an embodiment of the present application, where R1 is equal to 1mm, H1 is equal to 1mm, and P1 is equal to 2mm;

[0024] Figure 9 a luminance map of a uniform light assembly provided by an embodiment of the present application, where R1 is equal to 0.5mm, H1 is equal to 0.5mm, and P1 is equal to 0.5mm;

[0025] Figure 10 a luminance map of a uniform light assembly provided by an embodiment of the present application, where R1 is equal to 0.5mm, H1 is equal to 0.5mm, and P1 is equal to 2mm;

[0026] The label details involved in the above-mentioned drawings are as follows:

[0027] 10, uniform light body;

[0028] 11, first uniform light structure; 111, first uniform light protrusion;

[0029] 12, second uniform light structure; 121, second uniform light protrusion. DETAILED DESCRIPTION

[0030] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects clearer and more apparent, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of indicated technical features. Thus, features defined with "first", "second" etc. can include, explicitly or implicitly, one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly specified otherwise.

[0034] Referring to Figures 1 to 10 To solve the problems described in the background art, according to one aspect of the present application, embodiments of the present application provide a light-emitting module, the light-emitting module comprising: a light-emitting assembly and a light-uniformizing assembly, wherein the light-emitting assembly is configured to emit light; the light-uniformizing assembly is located on the light-emitting side of the light-emitting assembly, and the light-uniformizing assembly comprises a light-uniformizing main body 10 and a first light-uniformizing structure 11, the light-emitting surface of the light-uniformizing main body 10 or the light-incident surface of the light-uniformizing main body 10 is provided with the first light-uniformizing structure 11, the first light-uniformizing structure 11 comprises a plurality of first light-uniformizing protrusions 111 arranged in a first direction, the first light-uniformizing protrusions 111 extend in a second direction, and the light emitted by the light-emitting assembly can be adjusted by the first light-uniformizing structure 11 and irradiated to the external environment; the first cross-sectional profile of the first light-uniformizing protrusions 111 in the first direction is a circular arc, the radius of the first cross-sectional profile is R1, the height of the first cross-sectional profile is H1, and the distance between the center lines of two adjacent first light-uniformizing protrusions 111 is P1, wherein R1≤0.5mm, H1≤R1, The light-incident surface of the light-uniformizing main body 10 is opposite to the light-emitting surface of the light-uniformizing main body 10, the first direction is perpendicular to the second direction, and both the first direction and the second direction are parallel to the light-emitting surface of the light-uniformizing main body 10, and the center line of the first light-uniformizing protrusions 111 is parallel to the second direction. The light-emitting module provided in the embodiment can directly realize high-uniformity brightness distribution of the light-emitting surface without relying on traditional light guide plates, diffusion plates and other multi-layer optical elements, by adopting specially designed circular-arc first light-uniformizing protrusions 111 and cooperating with the light-emitting assembly of directional light emission. Through the specific geometric shape and precise arrangement mode of the first light-uniformizing protrusions 111, the light emitted by the light-emitting assembly can be adjusted by a single optical assembly, which can realize the light efficiency level of a traditional complex optical system. Compared with the prior art, the light-emitting module provided in the embodiment greatly reduces the number of optical elements used, improves the optical efficiency, significantly reduces the system power consumption of the light-emitting module, and when the light-emitting assembly adopts a side light-emitting architecture, the light-emitting assembly and the light-uniformizing assembly can at least partially overlap in the thickness direction of the light-emitting module, which is conducive to realizing the light-emitting module in a thin and light setting, and providing higher design flexibility and adaptability for various application scenarios.

[0035] It should be noted that the light-emitting module in the embodiment refers to an optical system integrated by a light-emitting component and a light-uniformizing component, which is used for converting non-uniform incident light into uniformly distributed outgoing light, and is suitable for display backlight, lighting device and other fields; the light-emitting component refers to a light source module comprising at least one light-emitting device, and the light-emitting side thereof faces the light-uniformizing component and is used for emitting initial light; the light-uniformizing component refers to an optical regulating component located on the light-emitting side of the light-emitting component, which comprises a light-uniformizing main body 10 and a plurality of first light-uniformizing structures 11 arranged on the light-emitting surface or the light-incident surface thereof, and realizes light uniformization through refraction / scattering effect.

[0036] It can be understood that setting the radius R1 of the first cross-sectional profile to be less than or equal to 0.5 mm can make the incident light produce a controllable diffusion angle when refracted through the first light-uniformizing structure 11, thereby effectively expanding the light-emitting viewing angle and eliminating the local light intensity concentration phenomenon; the radius R1 size range of less than or equal to 0.5 mm can ensure that the first light-uniformizing protrusion 111 maintains a smooth optical curved surface under a limited height, i.e., the height H1 is less than or equal to the radius R1, thereby avoiding the increase of aberration or process difficulty caused by excessive curvature, and at the same time, in combination with the spacing constraint condition of adjacent first light-uniformizing protrusions 111, i.e., even if the spacing P1 between the center lines of two adjacent first light-uniformizing protrusions 111 is less than or equal to the half chord length of the first light-uniformizing protrusion 111, the optical action regions of the two adjacent first light-uniformizing protrusions 111 can form continuous superposition, thereby realizing better light-emitting uniformity.

[0037] In some embodiments, when the first light-uniformizing structure 11 in the embodiment is located on the light-emitting surface of the light-uniformizing main body 10, the height H1 of the first cross-sectional profile refers to the vertical distance from the vertex of the first cross-sectional profile to the light-emitting surface of the light-uniformizing main body 10; when the first light-uniformizing structure 11 in the embodiment is located on the light-incident surface of the light-uniformizing main body 10, the height H1 of the first cross-sectional profile refers to the vertical distance from the vertex of the first cross-sectional profile to the light-incident surface of the light-uniformizing main body 10.

[0038] In some embodiments, when the first light-uniformizing structure 11 in the embodiment is located on the light-emitting surface of the light-uniformizing main body 10, the spacing P1 between the center lines of two adjacent first light-uniformizing protrusions 111 refers to the vertical distance of the axis on which the centers of the two adjacent first cross-sectional profiles are located in the direction parallel to the light-emitting surface of the light-uniformizing main body 10; when the first light-uniformizing structure 11 in the embodiment is located on the light-incident surface of the light-uniformizing main body 10, the spacing P1 between the center lines of two adjacent first light-uniformizing protrusions 111 refers to the vertical distance of the axis on which the centers of the two adjacent first cross-sectional profiles are located in the direction parallel to the light-incident surface of the light-uniformizing main body 10.

[0039] In some embodiments, the light uniformity body 10 in the present embodiment is a light-transmitting substrate, which is made of glass or optical-grade polymer such as polycarbonate, polymethyl methacrylate, silica gel, epoxy resin, polyethylene terephthalate, etc. The side of the light-transmitting substrate away from the light-emitting assembly is defined as the light-outgoing surface, and the side of the light-transmitting substrate close to the light-emitting assembly is defined as the light-ingoing surface, wherein the light-outgoing surface and the light-ingoing surface of the light uniformity body 10 are parallel.

[0040] In some embodiments, the light uniformity body 10 in the present embodiment can be a housing structure of the light-outgoing module.

[0041] In some embodiments, the light uniformity body 10 in the present embodiment is integrally arranged with the first light uniformity structure 11.

[0042] In some embodiments, the light uniformity body 10 in the present embodiment is integrally arranged with the first light uniformity structure 11 by injection molding.

[0043] In some embodiments, the light uniformity body 10 in the present embodiment is integrally arranged with the first light uniformity structure 11 by injection molding.

[0044] In some embodiments, the first light uniformity structure 11 in the present embodiment is formed by mold pressing and is fixedly attached to the light-outgoing surface or the light-ingoing surface of the light uniformity body 10.

[0045] In some embodiments, when the light uniformity body 10 in the present embodiment is integrally arranged with the first light uniformity structure 11, the material of the first light uniformity structure 11 is the same as that of the light uniformity body 10, or the material of the first light uniformity structure 11 is at least one of glass, polycarbonate, polymethyl methacrylate, silica gel, epoxy resin, and polyethylene terephthalate; when the light uniformity body 10 in the present embodiment is separately arranged with the first light uniformity structure 11, the material of the first light uniformity structure 11 is at least one of glass, polycarbonate, polymethyl methacrylate, silica gel, epoxy resin, and polyethylene terephthalate.

[0046] Referring to Figure 3 In a specific embodiment, the light-outgoing surface of the light uniformity body 10 in the present embodiment is provided with the first light uniformity structure 11, and the light-ingoing surface of the light uniformity body 10 is provided with the second light uniformity structure 12, the second light uniformity structure 12 includes a plurality of second light uniformity protrusions 121 arranged in the third direction, the second light uniformity protrusions 121 extend in the fourth direction, and the light emitted by the light-emitting assembly can be adjusted by the second light uniformity structure 12 and the first light uniformity structure 11 and irradiated to the external environment; the second cross-sectional profile of the second light uniformity protrusions 121 in the third direction is a circular arc, the radius of the second cross-sectional profile is R2, the height of the second cross-sectional profile is H2, and the distance between the center lines of adjacent two second light uniformity protrusions 121 is P2, wherein R2≤0.5mm, H2≤R2, The light-diffusing body 10 has its light-receiving surface near the light-emitting component. A third direction is perpendicular to a fourth direction, and both the third and fourth directions are parallel to the light-receiving surface of the light-diffusing body 10. The centerline of the second light-diffusing protrusion 121 is parallel to the fourth direction. By setting a second light-diffusing structure 12 on the light-receiving surface of the light-diffusing body 10, the light emitted by the light-emitting component can be pre-adjusted by the second light-diffusing structure 12, and then further adjusted by the first light-diffusing structure 11. Through the specific geometric shape and precise arrangement of the second light-diffusing protrusion 121, and further controlled by the first light-diffusing structure 11, the light-emitting module can output high-quality light with high light intensity uniformity.

[0047] It is understandable that setting the radius R2 of the second cross-section profile to less than or equal to 0.5 mm enables the incident light to generate a controllable diffusion angle when refracted by the second light-averaging structure 12, thereby effectively eliminating the phenomenon of local light intensity concentration. The radius R2 size range of less than or equal to 0.5 mm ensures that the second light-averaging protrusion 121 maintains a smooth optical surface at a limited height, that is, when the height H2 is less than or equal to the radius R2, avoiding aberrations or increased manufacturing difficulty caused by excessive curvature. At the same time, combined with the spacing constraint of two adjacent second light-averaging protrusions 121, even if the spacing P2 between the center lines of two adjacent second light-averaging protrusions 121 is less than or equal to half the chord length of the second light-averaging protrusion 121, the optical action areas of the two adjacent second light-averaging protrusions 121 can be continuously superimposed, thereby achieving better light output uniformity.

[0048] In some embodiments, the height H2 of the second cross-sectional profile refers to the vertical distance from the vertex of the second cross-sectional profile to the light-incident surface of the light-diffusing body 10.

[0049] In some embodiments, the distance P2 between the center lines of two adjacent second light-diffusing protrusions 121 refers to the vertical distance between the axes of the centers of the two adjacent second cross-sectional profiles in the direction parallel to the light-diffusing body 10.

[0050] In some embodiments, the light-diffusing body 10 and the second light-diffusing structure 12 are integrally disposed in this embodiment.

[0051] In some embodiments, the light-diffusing body 10 and the second light-diffusing structure 12 in this embodiment are integrally formed by injection molding.

[0052] In other embodiments, the light-diffusing body 10 and the second light-diffusing structure 12 in this embodiment are separately configured.

[0053] In some embodiments, the second light-diffusing structure 12 in this embodiment is molded and attached to the light-incoming surface of the light-diffusing body 10.

[0054] In some embodiments, when the light homogenizing body 10 in the embodiment is integrally arranged with the second light homogenizing structure 12, the material of the second light homogenizing structure 12 in the embodiment is the same as that of the light homogenizing body 10, or the material of the second light homogenizing structure 12 is at least one of glass, polycarbonate, polymethyl methacrylate, silica gel, epoxy resin, and polyethylene terephthalate; when the light homogenizing body 10 in the embodiment is separately arranged with the second light homogenizing structure 12, the material of the second light homogenizing structure 12 in the embodiment is at least one of glass, polycarbonate, polymethyl methacrylate, silica gel, epoxy resin, and polyethylene terephthalate.

[0055] In a specific embodiment, the second direction and the fourth direction in the embodiment have a preset included angle, and the size of the preset included angle is a, where 0° < a < 90°; by arranging the second direction and the fourth direction to have a preset included angle and arranging the size of the preset included angle to be greater than 0° and less than 90°, the extension direction of the first light homogenizing protrusion 111 of the first light homogenizing structure 11 and the extension direction of the second light homogenizing protrusion 121 of the second light homogenizing structure 12 can form a cross layout, thereby achieving multi-dimensional light beam diffusion control in an optical manner. By arranging the directions of the two light homogenizing structures to be non-orthogonal and cross, the regularity of optical interference that may be caused by the traditional orthogonal arrangement can be avoided, and the Moiré fringe phenomenon is suppressed. At the same time, arranging the size of the preset included angle to be greater than 0° and less than 90° can make the light rays obtain a more balanced diffusion effect when being continuously modulated by the first light homogenizing structure 11 and the second light homogenizing structure 12, thereby significantly improving the light emission uniformity and viewing angle consistency of the light emission module provided by the embodiment.

[0056] In another embodiment, the second direction and the fourth direction in the embodiment are parallel. By arranging the second direction and the fourth direction to be parallel, the incident light rays can obtain stronger diffusion capability in a single direction. Compared with the cross layout, the parallel layout structure can make the incident light rays produce a more continuous refraction gradient in the extension direction, eliminate the lateral light intensity mutation, reduce the interference of the optical element on the light rays in the non-extension direction, make the light field distribution of the main diffusion direction more easily controllable, and simplify the production process of the light homogenizing assembly and avoid the alignment error that may be caused by the cross structure.

[0057] It can be understood that when the size a of the preset included angle between the second direction and the fourth direction is greater than 0° and less than 90°, the light rays adjusted by the first light homogenizing structure 11 and the second light homogenizing structure 12 can form a diagonal grid-shaped light spot with a parallelogram or rhombus region at the light emission of the light homogenizing assembly; when the second direction and the fourth direction are parallel, the light rays adjusted by the first light homogenizing structure 11 and the second light homogenizing structure 12 can form a single-direction diffusion rectangular light spot at the light emission of the light homogenizing assembly.

[0058] In a specific embodiment, the light emitting assembly in the embodiment includes a first light emitting device group, the first light emitting device group includes a plurality of first light emitting devices, and the plurality of first light emitting devices are arranged at intervals along a first direction. By configuring the first light emitting device group to include a plurality of first light emitting devices arranged at intervals along the first direction, the light emitted by each first light emitting device can be effectively regulated by the first light uniformization structure 11, eliminating the local dark area problem common in traditional designs. At the same time, by setting the spacing of the first light emitting devices to match the characteristic size of the first light uniformization structure 11, precise control of the light beam superposition area can be achieved, thereby significantly improving the light uniformity of the light emitting module. In addition, the linear arrangement of the first light emitting devices can simplify the structure of the light emitting module, facilitating the lightweight design of the light emitting module.

[0059] In a specific embodiment, the spacing between the first light emitting device and the light uniformization assembly in the embodiment is X1, and the spacing between the centers of two adjacent first light emitting devices is X2, where X2≤2.3X1. By defining the proportional relationship between the spacing X1 between the first light emitting device and the light uniformization assembly and the spacing X2 between the centers of two adjacent first light emitting devices, a good balance between optical coupling efficiency and uniformity can be achieved. The proportional design of X2≤2.3X1 can ensure that the light emitting areas of two adjacent first light emitting devices form controllable overlapping light spots on the light uniformization assembly, thereby effectively avoiding the dark area problem caused by excessive spacing. At the same time, the proportional design of X2≤2.3X1 can make the light modulated by the first light uniformization structure 11 form a seamless and uniform light field on the light emitting surface.

[0060] In a specific embodiment, the light emitting assembly in the embodiment includes a plurality of first light emitting device groups, and the plurality of first light emitting device groups are arranged at intervals along a second direction. By configuring the light emitting assembly to include a plurality of first light emitting device groups arranged at intervals along the second direction, and arranging the plurality of first light emitting devices along the first direction to form a two-dimensional light source array, the light can obtain a more balanced spatial distribution before being modulated by the first light uniformization structure 11. In addition, the layout of the first light emitting device groups can cooperate with the first light uniformization protrusions 111 in the light uniformization assembly to effectively improve the overall uniformity of the large-size light emitting surface. Furthermore, the grouping and interval arrangement allows the light emitting module to flexibly adjust the density of the first light emitting devices according to the brightness requirements of different areas, optimizing energy consumption while ensuring optical performance.

[0061] In a specific embodiment, the light-emitting assembly in the embodiment includes a second light-emitting device group, and the second light-emitting device group includes a plurality of second light-emitting devices arranged at intervals along the first direction or the third direction. By configuring the second light-emitting device group to include a plurality of second light-emitting devices arranged at intervals along the first direction or the third direction, the light emitted by each second light-emitting device can be effectively regulated by the first light uniformization structure 11 and / or the second light uniformization structure 12, eliminating the local dark area problem common in traditional designs. At the same time, when the plurality of second light-emitting devices are arranged at intervals along the first direction, the pitch of the second light-emitting devices is set to match the characteristic dimension of the first light uniformization structure 11, and when the plurality of second light-emitting devices are arranged at intervals along the third direction, the pitch of the second light-emitting devices is set to match the characteristic dimension of the second light uniformization structure 12, which can achieve precise control of the light beam superposition area, thereby significantly improving the light-emitting uniformity of the light-emitting module. In addition, the linear arrangement of the second light-emitting devices can simplify the structure of the light-emitting module, which is conducive to the lightweight design of the light-emitting module.

[0062] In a specific embodiment, the distance between the second light-emitting device and the light uniformization assembly in the embodiment is X1, and the distance between the centers of two adjacent second light-emitting devices is X3, where X3≤2.3X1. By limiting the proportional relationship between the distance X1 between the second light-emitting device and the light uniformization assembly and the distance X3 between the centers of two adjacent second light-emitting devices, a good balance between optical coupling efficiency and uniformity can be achieved. The proportional design of X3≤2.3X1 can ensure that the light-emitting areas of two adjacent second light-emitting devices form a controllable overlapping light spot on the light uniformization assembly, thereby effectively avoiding the dark area problem caused by excessive spacing. At the same time, the proportional design of X3≤2.3X1 can make the light modulated by the second light uniformization structure 12 and the first light uniformization structure 11 form a seamless and uniform light field on the light-emitting surface.

[0063] In a specific embodiment, the light emitting assembly in the embodiment includes a plurality of second light emitting device groups; the plurality of second light emitting device groups are arranged along a second direction when the plurality of second light emitting devices are arranged along a first direction; the plurality of second light emitting device groups are arranged along a fourth direction when the plurality of second light emitting devices are arranged along a third direction. By configuring the light emitting assembly to include a plurality of second light emitting device groups arranged along the second direction or the fourth direction, the plurality of second light emitting device groups arranged along the second direction can form a two-dimensional light source array with the plurality of second light emitting devices along the first direction, and the plurality of second light emitting device groups arranged along the fourth direction can form a two-dimensional light source array with the plurality of second light emitting devices along the third direction, so that the light rays can obtain a more balanced spatial distribution before being modulated by the second light homogenizing structure 12 and the first light homogenizing structure 11, and the layout of the second light emitting device groups can cooperate with the second light homogenizing protrusion 121 or the first light homogenizing protrusion 111 in the light homogenizing assembly to effectively improve the overall uniformity of the large-size light emitting surface. In addition, the arrangement of the grouped and spaced second light emitting devices allows the light emitting module to flexibly adjust the density of the second light emitting devices according to the brightness requirements of different regions, while ensuring the optical performance and optimizing the energy consumption.

[0064] In some embodiments, the first light emitting device in the embodiment is a front emitting LED, and of course, in other embodiments, the first light emitting device in the embodiment can also be a side emitting LED. The light emitting angle of the front emitting LED or the side emitting LED can be a common angle of 150°, 130°, 120°, 90°, 80°, etc., and in other embodiments, the front emitting LED or the side emitting LED in the embodiment can also be matched with optical components such as lenses, reflective cups, etc. to achieve any light emitting angle.

[0065] In some embodiments, the second light emitting device in the embodiment is a front emitting LED, and of course, in other embodiments, the second light emitting device in the embodiment can also be a side emitting LED. The light emitting angle of the front emitting LED or the side emitting LED can be a common angle of 150°, 130°, 120°, 90°, 80°, etc., and in other embodiments, the front emitting LED or the side emitting LED in the embodiment can also be matched with optical components such as lenses, reflective cups, etc. to achieve any light emitting angle.

[0066] In a specific embodiment, before the luminance detection of the light homogenizing body 10, a first light emitting device is placed at a first preset distance on the light inlet side of the light homogenizing body 10, and the position of the first light emitting device is set to correspond to the geometric center of the light homogenizing body 10, and the luminance detection device is placed at a second preset distance on the light outlet side of the light homogenizing body 10, at this time, the light beam emitted by the first light emitting device can irradiate the detection end of the luminance detection device through the light homogenizing body 10, so that the luminance detection device can detect the luminance of the light homogenizing body 10 and output the corresponding luminance diagram, wherein the first preset distance is 20mm, the second preset distance is 1m, and the specific structure of the luminance detection device is the conventional structure in the prior art, which will not be described here.

[0067] In some embodiments, the light outlet surface of the light homogenizing body 10 in the embodiment is provided with the first light homogenizing structure 11, R1 is set to be equal to 0.25mm, H1 is set to be equal to 0.25mm, and P1 is set to be equal to 0.5mm, and the luminance of the light homogenizing assembly is detected by the luminance detection device, at this time, the luminance diagram output by the luminance detection device is shown in FIG. 11. Figure 6 In some embodiments, the light outlet surface of the light homogenizing body 10 in the embodiment is provided with the first light homogenizing structure 11, R1 is set to be equal to 0.5mm, H1 is set to be equal to 0.5mm, and P1 is set to be equal to 1mm, and the luminance of the light homogenizing assembly is detected by the luminance detection device, at this time, the luminance diagram output by the luminance detection device is shown in FIG. 12. Figure 7 In some embodiments, the light outlet surface of the light homogenizing body 10 in the embodiment is provided with the first light homogenizing structure 11, R1 is set to be equal to 1mm, H1 is set to be equal to 1mm, and P1 is set to be equal to 2mm, and the luminance of the light homogenizing assembly is detected by the luminance detection device, at this time, the luminance diagram output by the luminance detection device is shown in FIG. 13. Figure 8 Figure 6 Figure 7 The corresponding light homogenizing assembly luminance distribution is continuous, Figure 8 The corresponding light homogenizing assembly luminance distribution is discontinuous.

[0068] In some embodiments, the light outlet surface of the light homogenizing body 10 in the embodiment is provided with the first light homogenizing structure 11, R1 is set to be equal to 0.5mm, H1 is set to be equal to 0.5mm, and P1 is set to be equal to 1mm, and the luminance of the light homogenizing assembly is detected by the luminance detection device, at this time, the luminance diagram output by the luminance detection device is shown in FIG. 11. Figure 4 In some embodiments, the light outlet surface of the light homogenizing body 10 in the embodiment is provided with the first light homogenizing structure 11, R1 is set to be equal to 0.5mm, H1 is set to be equal to 0.5mm, and P1 is set to be equal to 1mm, and the luminance of the light homogenizing assembly is detected by the luminance detection device, at this time, the luminance diagram output by the luminance detection device is shown in FIG. 11. Figure 5 In some embodiments, the light outlet surface of the light homogenizing body 10 in the embodiment is provided with the first light homogenizing structure 11, R1 is set to be equal to 0.5mm, H1 is set to be equal to 0.5mm, and P1 is set to be equal to 1mm, and the luminance of the light homogenizing assembly is detected by the luminance detection device, at this time, the luminance diagram output by the luminance detection device is shown in FIG. 11.

[0069] ​​In some embodiments, the light-emitting surface of the light-uniformizing body 10 in the present embodiment is provided with the first light-uniformizing structure 11, R1 is set to be equal to 0.5 mm, H1 is set to be equal to 0.5 mm, P1 is set to be equal to 1 mm, and the luminance of the light-uniformizing assembly is detected by the luminance detection device. At this time, the luminance diagram output by the luminance detection device is shown in FIG. 8. Figure 7 In some embodiments, the light-emitting surface of the light-uniformizing body 10 in the present embodiment is provided with the first light-uniformizing structure 11, R1 is set to be equal to 0.5 mm, H1 is set to be equal to 0.5 mm, P1 is set to be equal to 1 mm, and the luminance of the light-uniformizing assembly is detected by the luminance detection device. At this time, the luminance diagram output by the luminance detection device is shown in FIG. 8. Figure 9 In some embodiments, the light-emitting surface of the light-uniformizing body 10 in the present embodiment is provided with the first light-uniformizing structure 11, R1 is set to be equal to 0.5 mm, H1 is set to be equal to 0.5 mm, P1 is set to be equal to 1 mm, and the luminance of the light-uniformizing assembly is detected by the luminance detection device. At this time, the luminance diagram output by the luminance detection device is shown in FIG. 8. Figure 10 Figure 7 Figure 9 The luminance distribution of the corresponding light-uniformizing assembly is uniform, Figure 10 The luminance distribution of the corresponding light-uniformizing body 10 in the present embodiment is not uniform. See FIG. 8. Figure 7 Figure 9 Figure 10 Figure 7 When the first preset distance is 20 mm, i.e., X1 is set to be equal to 20 mm, the luminance distribution of the light-uniformizing assembly in the first direction is ±20 mm. Therefore, by setting the distance X2 between the two adjacent first light-emitting devices to be less than or equal to 2.3X1, the luminance of the light-uniformizing assembly in the first direction can be continuously and uniformly distributed.

[0070] According to another aspect of the present application, a light-uniformizing assembly is provided, which is suitable for use in a light-emitting module having a light-emitting assembly. The light-uniformizing assembly is located on the light-emitting side of the light-emitting assembly. The light-uniformizing assembly comprises a light-uniformizing body 10 and a first light-uniformizing structure 11. The light-emitting surface of the light-uniformizing body 10 or the light-incident surface of the light-uniformizing body 10 is provided with the first light-uniformizing structure 11. The first light-uniformizing structure 11 comprises a plurality of first light-uniformizing protrusions 111 arranged in sequence along a first direction. The first light-uniformizing protrusions 111 extend along a second direction. The light emitted by the light-emitting assembly can be adjusted by the first light-uniformizing structure 11 and irradiated to the external environment. The first cross-sectional profile of the first light-uniformizing protrusions 111 in the first direction is a circular arc. The radius of the first cross-sectional profile is R1. The height of the first cross-sectional profile is H1. The distance between the center lines of two adjacent first light-uniformizing protrusions 111 is P1. Wherein, R1≤0.5 mm, H1≤R1, Wherein, the light-incident surface of the light-uniformizing body 10 is the light-emitting surface of the light-uniformizing body 10. The first direction is perpendicular to the second direction. Both the first direction and the second direction are parallel to the light-emitting surface of the light-uniformizing body 10. The center line of the first light-uniformizing protrusions 111 is parallel to the second direction. The light-uniformizing assembly in the present embodiment has the same beneficial effects as the foregoing description, which will not be repeated here.

[0071] ​​In a specific embodiment, the light uniformity assembly in the embodiment includes a second light uniformity structure 12, the light emitting surface of the light uniformity body 10 is provided with a first light uniformity structure 11, the light incident surface of the light uniformity body 10 is provided with the second light uniformity structure 12, the second light uniformity structure 12 includes a plurality of second light uniformity protrusions 121 arranged in sequence along a third direction, the second light uniformity protrusions 121 extend along a fourth direction, the light emitted by the light emitting assembly can be adjusted by the second light uniformity structure 12 and the first light uniformity structure 11 and irradiated to the external environment; the second cross-sectional profile of the second light uniformity protrusions 121 in the third direction is a circular arc, and the radius of the second cross-sectional profile is R2, the height of the second cross-sectional profile is H2, and the distance between the center lines of the adjacent two second light uniformity protrusions 121 is P2, wherein R2≤0.5mm, H2≤R2, Wherein, the side of the light uniformity body 10 close to the light emitting assembly is the light incident surface of the light uniformity body 10, the third direction is perpendicular to the fourth direction, and the third direction and the fourth direction are both parallel to the light incident surface of the light uniformity body 10, and the center line of the second light uniformity protrusion 121 is parallel to the fourth direction. The light uniformity assembly in the embodiment has the same beneficial effects as the foregoing description, which will not be repeated here.

[0072] In a specific embodiment, the second direction and the fourth direction have a preset included angle a, wherein 0°<a<90°. The light uniformity assembly in the embodiment has the same beneficial effects as the foregoing description, which will not be repeated here.

[0073] In summary, the light emitting module and the light uniformity assembly provided in the embodiment have at least the following beneficial technical effects: the light emitting module provided in the embodiment directly realizes high uniformity brightness distribution of the light emitting surface without relying on traditional light guide plates, diffusion plates and other multi-layer optical assemblies by adopting specially designed circular arc-shaped first light uniformity protrusions 111 and cooperating with the directional light emitting light emitting assembly. Through the specific geometric shape and precise arrangement of the first light uniformity protrusions 111, the light emitted by the light emitting assembly can be adjusted by a single optical assembly, which can realize the light efficiency level of the traditional complex optical system. Compared with the prior art, the light emitting module provided in the embodiment greatly reduces the number of optical assemblies used, improves the optical efficiency, and significantly reduces the system power consumption of the light emitting module. When the light emitting assembly adopts a side light emitting architecture, the occupied space of the light emitting assembly and the light uniformity assembly in the thickness direction of the light emitting module can at least partially overlap, which is conducive to realizing the light and thin setting of the light emitting module, and provides higher design flexibility and adaptability for various application scenarios.

[0074] The above is only a preferred embodiment of the present application and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A light-out module, characterized in that, The light-emitting module comprises: a light-emitting assembly for emitting light rays; a light-uniformizing assembly located on the light-emitting side of the light-emitting assembly, the light-uniformizing assembly comprising a light-uniformizing main body (10) and a first light-uniformizing structure (11), the light-emitting surface of the light-uniformizing main body (10) or the light-incident surface of the light-uniformizing main body (10) being provided with the first light-uniformizing structure (11), the first light-uniformizing structure (11) comprising a plurality of first light-uniformizing protrusions (111) arranged in sequence along a first direction, the first light-uniformizing protrusions (111) extending along a second direction, the light rays emitted by the light-emitting assembly being capable of being adjusted by the first light-uniformizing structure (11) and irradiated to an external environment; A first cross-sectional profile of the first uniform light protrusion (111) in the first direction is a circular arc, a radius of the first cross-sectional profile is R1, a height of the first cross-sectional profile is H1, and a spacing between center lines of two adjacent first uniform light protrusions (111) is P1, wherein R1≤0.5 mm, H1≤R1, Wherein, the light-out surface of the uniform light body (10) is the surface of the uniform light body (10) far away from the light-emitting assembly, the first direction is perpendicular to the second direction, and the first direction and the second direction are both parallel to the light-out surface of the uniform light body (10), and the center line of the first uniform light protrusion (111) is parallel to the second direction.

2. The light-exit module of claim 1, wherein, the light-uniformizing assembly further comprising a second light-uniformizing structure (12), the light-emitting surface of the light-uniformizing main body (10) being provided with the first light-uniformizing structure (11), the light-incident surface of the light-uniformizing main body (10) being provided with the second light-uniformizing structure (12), the second light-uniformizing structure (12) comprising a plurality of second light-uniformizing protrusions (121) arranged in sequence along a third direction, the second light-uniformizing protrusions (121) extending along a fourth direction, the light rays emitted by the light-emitting assembly being capable of being adjusted by the second light-uniformizing structure (12) and the first light-uniformizing structure (11) and irradiated to the external environment; A second cross-sectional profile of the second uniform light protrusion (121) in the third direction is a circular arc, a radius of the second cross-sectional profile is R2, a height of the second cross-sectional profile is H2, and a spacing between center lines of two adjacent second uniform light protrusions (121) is P2, wherein R2≤0.5 mm, H2≤R2, The light-incoming surface of the uniform light main body (10) is a surface of the uniform light main body (10) close to the light-emitting assembly, the third direction is perpendicular to the fourth direction, the third direction and the fourth direction are both parallel to the light-incoming surface of the uniform light main body (10), and the center line of the second uniform light protrusion (121) is parallel to the fourth direction.

3. The light-exit module of claim 2, wherein, the second direction and the fourth direction having a preset included angle, the preset included angle being a, wherein 0° < a < 90°; or, the second direction and the fourth direction being parallel.

4. The light-exit module of claim 1, wherein, The light-emitting assembly comprises a first light-emitting device group, the first light-emitting device group comprising a plurality of first light-emitting devices, the plurality of first light-emitting devices being arranged at intervals along the first direction, the distance between the first light-emitting device and the light-uniformizing assembly being X1, the distance between the centers of two adjacent first light-emitting devices being X2, wherein X2 ≤ 2.3X1.

5. The light-exit module of claim 4, wherein, The light-emitting assembly comprises a plurality of first light-emitting device groups, the plurality of first light-emitting device groups being arranged at intervals along the second direction.

6. The light-exit module of claim 2, wherein, The light-emitting assembly comprises a second light-emitting device group, the second light-emitting device group comprising a plurality of second light-emitting devices, the plurality of second light-emitting devices being arranged at intervals along the first direction or the third direction, the distance between the second light-emitting device and the light-uniformizing assembly being X1, the distance between the centers of two adjacent second light-emitting devices being X3, wherein X3 ≤ 2.3X1.

7. The light-exit module of claim 6, wherein, The light-emitting assembly comprises a plurality of second light-emitting device groups; when the plurality of second light-emitting devices are arranged at intervals along the first direction, the plurality of second light-emitting device groups are arranged at intervals along the second direction; when the plurality of second light-emitting devices are arranged at intervals along the third direction, the plurality of second light-emitting device groups are arranged at intervals along the fourth direction.

8. An even light module, adapted to be used in a light emitting module having a light emitting module, characterized in that, The light homogenizing assembly is located on the light emitting side of the light emitting assembly, and comprises a light homogenizing body (10) and a first light homogenizing structure (11). The light emitting surface of the light homogenizing body (10) or the light entering surface of the light homogenizing body (10) is provided with the first light homogenizing structure (11). The first light homogenizing structure (11) comprises a plurality of first light homogenizing protrusions (111) arranged in sequence along a first direction. The first light homogenizing protrusions (111) extend along a second direction. The light emitted by the light emitting assembly can be adjusted by the first light homogenizing structure (11) and irradiated to the external environment. A first cross-sectional profile of the first uniform light protrusion (111) in the first direction is a circular arc, a radius of the first cross-sectional profile is R1, a height of the first cross-sectional profile is H1, and a spacing between center lines of two adjacent first uniform light protrusions (111) is P1, wherein R1≤0.5 mm, H1≤R1, Wherein, the light-out surface of the uniform light body (10) is the surface of the uniform light body (10) far away from the light-emitting assembly, the first direction is perpendicular to the second direction, and the first direction and the second direction are both parallel to the light-out surface of the uniform light body (10), and the center line of the first uniform light protrusion (111) is parallel to the second direction.

9. The uniform light assembly of claim 8, wherein, The light homogenizing assembly comprises a second light homogenizing structure (12). The light emitting surface of the light homogenizing body (10) is provided with the first light homogenizing structure (11). The light entering surface of the light homogenizing body (10) is provided with the second light homogenizing structure (12). The second light homogenizing structure (12) comprises a plurality of second light homogenizing protrusions (121) arranged in sequence along a third direction. The second light homogenizing protrusions (121) extend along a fourth direction. The light emitted by the light emitting assembly can be adjusted by the second light homogenizing structure (12) and the first light homogenizing structure (11) and irradiated to the external environment. A second cross-sectional profile of the second uniform light protrusion (121) in the third direction is a circular arc, a radius of the second cross-sectional profile is R2, a height of the second cross-sectional profile is H2, and a spacing between center lines of two adjacent second uniform light protrusions (121) is P2, wherein R2≤0.5mm, H2≤R2, The light-incoming surface of the uniform light main body (10) is a surface of the uniform light main body (10) close to the light-emitting assembly, the third direction is perpendicular to the fourth direction, the third direction and the fourth direction are both parallel to the light-incoming surface of the uniform light main body (10), and the center line of the second uniform light protrusion (121) is parallel to the fourth direction.

10. The uniform light assembly of claim 9, wherein, The second direction and the fourth direction have a preset included angle. The size of the preset included angle is a, wherein 0° < a < 90°. Alternatively, the second direction is parallel to the fourth direction.

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