Line lamp emitting light from whole surface

By incorporating reflector cups and linear lenses within the luminaire, the problems of uneven light distribution and grid-like appearance in linear luminaires are solved, achieving uniform illumination and aesthetically pleasing effects across the entire surface.

CN223537469UActive Publication Date: 2025-11-11GUANGDONG XILANGDE OPTICAL TECH CO LTD
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Patent Information

Application Number
CN202423237057.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-11-11
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

The existing linear light fixtures have insufficient light projection, resulting in broken dark areas, uneven brightness, and glaring light. When reflected by the lens, they appear as a grid pattern, which affects the aesthetics.

Method used

The light source assembly, reflector assembly, and linear lens are installed inside the lamp housing. The inner surface of the reflector assembly has arc-shaped protrusions, and the end face of the linear lens has a raised surface and a transition section. With the combination of sparse and dense protrusions, light is evenly scattered and refracted, avoiding dark area breaks and grid phenomena.

Benefits of technology

It achieves uniform light illumination, eliminates dark area breaks and local overbrightness, improves the brightness uniformity of the illuminated surface, and makes the appearance more aesthetically pleasing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The line lamp comprises a lamp shell, a light source set, a reflection cup set and a line lens, the light source set, the reflection cup set and the line lens are sequentially arranged in the lamp shell from bottom to top, the reflection cup set is provided with a cup body, and arc-shaped protrusions are distributed on the inner surface of the cup body. The line lens is provided with a convex surface, the convex part of the convex surface forms a micro convex surface, a concave transition section is arranged between every two micro convex surfaces, sparse convex particles are distributed on the micro convex surfaces, and dense convex particles are distributed on the transition section. The arc-shaped protrusions can reflect light rays and evenly scatter the light rays, in this way, the reflected light rays and the direct light rays can evenly irradiate the line lenses, the light ray refractive index is increased in cooperation with the protruding faces on the line lenses, the light rays penetrating through the emergent face of the whole lamp are more even, and the problem that the light rays are too bright locally and consequently dazzling is caused is solved.
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Description

Technical Field

[0001] This utility model relates to, but is not limited to, the field of lighting fixtures, and particularly to a linear lighting fixture that emits light from the entire surface. Background Technology

[0002] Existing linear lighting fixtures mainly consist of a linear lens, a light source, and a fixture housing. The linear lighting fixture is used to control the optical angle of the light emitted from the converging light source. The fixture housing is used to fix the linear lens and the light source. When the light emitted from the light source is converging through the linear lens and emitted at a specific light emission angle, it can illuminate a specific area.

[0003] Existing linear lighting fixtures typically employ multiple independent light sources for illumination. However, the directionality of the light emitted by each individual light source is too strong. This results in a relative difference in brightness between the light emitted from two light sources when the light passes through the linear lens and illuminates the surface. This is because the light from two light sources is insufficient at adjacent positions on the linear lens, causing dark areas to appear on the lens surface, thus creating an unevenly bright illumination surface. Furthermore, the dark areas on the linear lens surface highlight localized overbrightness, making the light emitted from the light source relatively glaring. Moreover, when looking at the reflector through the lens, a grid-like shape appears, making the entire linear light appear like a grid. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a linear light fixture with full-surface light emission, which solves the technical problems of insufficient light from every two light sources projected onto adjacent positions of the linear lens, resulting in dark areas and discontinuities on the surface of the linear lens, thus forming an uneven illumination surface; and the presence of dark areas and discontinuities on the surface of the linear lens, which would highlight local over-brightness, making the light emitted by the light source relatively glaring, and when looking at the reflector through the lens, a grid-like shape would still appear, making the entire strip light still appear as a grid.

[0006] (II) Technical Solution

[0007] The purpose of this utility model is to provide a linear light fixture with full-surface light emission, which includes a light fixture housing, a light source group, a reflector group, and a linear lens. The light source group, the reflector group, and the linear lens are arranged in order from bottom to top inside the light fixture housing. The reflector group is provided with a cup body, and the inner surface of the cup body is distributed with arc-shaped protrusions. The end face of the linear lens is provided with a raised surface, and the raised part of the raised surface forms a micro-convex surface. A concave transition section is provided between each pair of micro-convex surfaces. The micro-convex surfaces are distributed with sparse protrusions, and the transition sections are distributed with dense protrusions.

[0008] Preferably, the reflective cup assembly is made of transparent material, and the reflective cup assembly consists of two or more cups.

[0009] Preferably, the raised end face of the arc-shaped protrusion is plated with a metallic color.

[0010] Preferably, the arc-shaped protrusions are distributed on the inner wall of the cup from top to bottom, decreasing in size, and transparent sections are provided between the arc-shaped protrusions.

[0011] Preferably, one end face of the linear lens is a flat surface, and the other end face of the linear lens is a continuously undulating convex surface.

[0012] Preferably, the light source assembly includes a substrate and LED beads, wherein the LED beads are disposed on the substrate and located at the bottom of the reflector assembly.

[0013] Preferably, the reflector cup assembly is a one-piece molded structure.

[0014] Preferably, the cross-section of the cup is trumpet-shaped.

[0015] Preferably, the upper and lower end faces of the linear lens are provided with raised surfaces.

[0016] (III) Beneficial Effects

[0017] 1. When the light emitted by the light source shines on the inner wall of the cup, the arc-shaped protrusion will reflect the light and scatter the light evenly. In this way, the reflected light and the direct light will shine evenly on the linear lens. In addition, the convex surface on the linear lens increases the refractive index of the light, making the light transmitted through the entire emission surface of the lamp more uniform, avoiding the appearance of dark areas and reducing the problem of excessive brightness in some areas causing glare.

[0018] 2. When light passes through the linear lens, the micro-convex surface facing the light source group increases the refraction of the light, making it more uniform. The transition section set at the edge of the micro-convex surface further increases the refractive index of the light, increasing the brightness of the adjacent positions of the light source and further improving the brightness uniformity of the emission surface.

[0019] 3. In addition, the sparse and dense protrusions of the linear lens will block the reflector cup assembly. When looking at the reflector cup through the lens, there will be no segmentation. In this way, even if the light fixture is not lit, it will look like a whole, rather than a grid, which is more aesthetically pleasing. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0021] Figure 1 It is an exploded view of the overall structure of a linear light fixture that emits light from the entire surface;

[0022] Figure 2 It is a half-section diagram of the overall structure of a linear light fixture that emits light from the entire surface;

[0023] Figure 3 It is a linear light fixture that emits light from the entire surface. Figure 2 Enlarged view of point A in the image;

[0024] Figure 4 It is a 3D view of the linear lens of a linear light fixture that emits light from the entire surface.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Lamp housing; 2. Light source assembly; 21. LED beads; 22. Substrate; 3. Reflector assembly; 31. Cup body; 32. Arc-shaped protrusion; 33. Transparent section; 4. Linear lens; 41. Raised surface; 42. Micro-convex surface; 43. Transition section; 44. Sparse protrusions; 45. Dense protrusions. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] The following is in conjunction with the appendix Figures 1 to 4 To further describe, this utility model discloses a linear light fixture with full-surface light emission, including a light fixture housing 1, a light source group 2, a reflector cup group 3, and a linear lens 4. The light source group 2, the reflector cup group 3, and the linear lens 4 are arranged in the light fixture housing 1 in a bottom-to-top order. The reflector cup group 3 is composed of two or more cups 31. The inner surface of each cup 31 is provided with an outwardly protruding arc-shaped protrusion 32. The light is scattered relatively evenly through the reflective surface formed by the arc-shaped protrusion 32.

[0029] The linear lens 4 is provided with a continuously undulating convex surface 41, which can be provided on the upper or lower end face of the linear lens, or both end faces, and can be replaced according to the usage scenario or usage requirements. The convex part of the convex surface 41 forms a micro-convex surface 42, and a concave transition section 43 is provided between each pair of micro-convex surfaces 42. The micro-convex surfaces 42 are distributed with sparse protrusions 44 of different sizes and irregular shapes, and the transition sections 43 are distributed with dense protrusions 45 of different sizes and irregular shapes. Specifically, the semi-arc-shaped outward convex micro-convex surfaces 42 are higher than the transition sections 43, and the density of the sparse protrusions 44 distributed therein is relatively larger and sparser than the density of the dense protrusions 45 distributed in the transition sections 43. The dense protrusions 45 distributed in the transition sections 43 increase the refractive index of light to a certain extent, thereby improving the uniformity of illumination.

[0030] In a preferred embodiment, the reflector cup assembly 3 is made of a transparent material, specifically glass or PC material, and the reflector cup assembly 3 consists of two or more cup bodies 31.

[0031] In a preferred embodiment, the protruding end face of the arc-shaped protrusion 32 is provided with an electroplated metallic color by means of masking. The arc-shaped protrusions 32 are distributed from top to bottom and from large to small on the inner wall of the cup body 31. A transparent section 33 is provided between the arc-shaped protrusions 32, and the transparent section 33 is a non-electroplated area.

[0032] In a preferred embodiment, one end face of the linear lens 4 is a flat surface, and the other end face of the linear lens 4 is a continuously undulating convex surface 41.

[0033] In a preferred embodiment, the light source group 2 includes a substrate 22 and LED beads 21. The LED beads 21 are disposed on the substrate 22 and located at the bottom of the reflector cup group 3, while the LED beads 21 face the micro-convex surface 42 of the linear lens 4.

[0034] In a preferred embodiment, the reflector cup assembly 3 is a one-piece molded structure.

[0035] In a preferred embodiment, the cup body 31 has a trumpet-shaped cross-section.

[0036] Although the technical solutions according to the present invention have been described with reference to several different embodiments, aspects and features, it is not intended to limit the scope of the present invention, but modifications thereof are included within the broad scope of the foregoing disclosure, drawings and claims.

Claims

1. A linear light fixture with full-surface light emission, comprising a fixture housing, a light source assembly, a reflector assembly, and a linear lens, wherein the light source assembly, the reflector assembly, and the linear lens are arranged in a bottom-to-top order within the fixture housing, characterized in that: The reflector cup assembly is provided with a cup body, and the inner surface of the cup body is distributed with arc-shaped protrusions; the end face of the linear lens is provided with a raised surface, the raised part of the raised surface forms a micro-convex surface, and a concave transition section is provided between each pair of micro-convex surfaces. The micro-convex surfaces are distributed with sparse protrusions, and the transition sections are distributed with dense protrusions.

2. The linear light fixture with full-surface light emission according to claim 1, characterized in that: The reflective cup assembly is made of transparent material and consists of two or more cups.

3. The linear light fixture with full-surface light emission according to claim 2, characterized in that: The raised end face of the arc-shaped protrusion is plated with a metallic color.

4. The linear light fixture with full-surface light emission according to claim 3, characterized in that: The arc-shaped protrusions are distributed on the inner wall of the cup from top to bottom, decreasing in size, and transparent sections are provided between the arc-shaped protrusions.

5. The linear light fixture with full-surface light emission according to claim 1, characterized in that: One end face of the linear lens is flat, and the other end face of the linear lens is a continuously undulating convex surface.

6. The linear light fixture with full-surface light emission according to claim 1, characterized in that: The light source assembly includes a substrate and LED beads, with the LED beads disposed on the substrate and located at the bottom of the reflector assembly.

7. The linear light fixture with full-surface light emission according to claim 2, characterized in that: The reflector cup assembly is a one-piece molded structure.

8. The linear light fixture with full-surface light emission according to claim 1, characterized in that: The cross-section of the cup is trumpet-shaped.

9. The linear light fixture with full-surface light emission according to claim 1, characterized in that: The upper and lower end faces of the linear lens are both provided with raised surfaces.