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Small-angle LED lens with triple calculus structure and implementation method of small-angle LED lens

A technology of LED lens and implementation method, which is applied in the parts of lighting devices, semiconductor devices of light-emitting elements, lighting devices, etc., and can solve the problem that the small angle of 10° cannot be truly achieved, the optical efficiency of the whole light is low, and the light spot effect is poor. etc. to achieve the effect of high central light intensity, small angle and soft spot

Pending Publication Date: 2021-02-26
HENGDIAN GRP TOSPO LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The optical space is small and the angle is too large, so it is impossible to truly meet the requirement of a small angle of 10°;
[0005] 2. The light spot is hard, the boundary line between the light spot and the sub-light spot is clear, and the effect of the light spot is poor;
[0006] 3. The optical efficiency of the whole light is low, only about 86%

Method used

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  • Small-angle LED lens with triple calculus structure and implementation method of small-angle LED lens
  • Small-angle LED lens with triple calculus structure and implementation method of small-angle LED lens
  • Small-angle LED lens with triple calculus structure and implementation method of small-angle LED lens

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Embodiment 1

[0037] see Figure 1-5 , the present invention provides the following technical solutions: a small-angle LED lens with a triple calculus structure, including a lens body 1, a dense concave-convex structure 3 is provided on the light-emitting surface 2 of the lens body 1, and a light inlet 6 of the lens body 1 There are several layers of light-contracting cups 7 from outside to inside, and total reflection sheets 5 are provided on the side walls of several light-contracting cups 7 .

[0038] Specifically, the lens body 1 is a cone-shaped structure.

[0039] Specifically, the side of the lens body 1 with a larger diameter is the light exit surface 2 , and the side of the lens body 1 with a smaller diameter is the light inlet 6 .

[0040] Specifically, the dense concave-convex structure 3 is radially arranged on the light-emitting surface 2, and the cross-section of the concave-convex structure 3 is a triangular structure.

[0041] By adopting the above technical solutions, suc...

Embodiment 2

[0044] The difference between this embodiment and Embodiment 1 lies in that specifically, the depths of several light converging cups 7 decrease sequentially from outside to inside.

[0045] By adopting the above technical solutions, such as image 3 As shown, the light inlet is expanded, and the light emitted by the light source is Lambertian light, which can be included and shrunk by the light inlet of sufficient size, so that the overall optical efficiency can reach 92%. The shrunk light passes through the light inlet and is microscopically Each light beam that exists in the integral mode is differentially divided by the cup body 7, and each divided light beam first refracts through the inner wall of the corresponding cup, and after reaching the side wall, according to the law of total reflection, the light beam is irradiated in a collimated manner after the total reflection of the side wall. On the light-emitting surface, the collimated light rays formed in this way on all...

Embodiment 3

[0047] The difference between this embodiment and Embodiment 1 lies in that: specifically, the total reflection sheet 5 has an array structure of several layers.

[0048] By adopting the above technical solutions, such as Figure 4 As shown, the side walls of each layer of light converging cup 7 are differentially arrayed into a series of total reflection sheets 5, and these total reflection sheets 5 divide the light rays contracted by the cup body, and then adjust the curvature of the total reflection sheets separately, to the corresponding The segmented light is collimated and adjusted, and finally the light of each total reflection sheet is integrated, so as to achieve the effect of increasing the light intensity in the center of the spot.

[0049] Further, the realization method of the small-angle LED lens with triple calculus structure according to the present invention includes the following steps:

[0050] (1), process the light inlet 6 of the lens body 1 through the f...

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Abstract

The invention discloses a small-angle LED lens with a triple calculus structure, and belongs to the technical field of lenses. The small-angle LED lens comprises a lens body, wherein the light outletsurface of the lens body is provided with a dense concave-convex structure; a light inlet of the lens body is provided with a plurality of layers of light gathering cup bodies from outside to inside;and the side walls of the plurality of light gathering cup bodies are provided with total reflector plates. The invention further discloses an implementation method of the small-angle LED lens with the triple calculus structure. According to the small-angle LED lens and the implementation method, after light is subjected to triple calculus processing of the light inlet, the light collecting cup bodies and the light outlet surface, light spots which are small in angle, high in optical efficiency, high in central light intensity, uniform and soft can be finally obtained.

Description

technical field [0001] The invention belongs to the technical field of lenses, and in particular relates to a small-angle LED lens with a triple calculus structure and a realization method thereof. Background technique [0002] At present, there are many small lamps with small angle and high light intensity on the market, such as MR16 and GU10 lamps. The angle is generally concentrated at 15°, and the light intensity is not high. Moreover, the space of small lamps is small, and all the light cannot be collected during the lens design process, and there is serious light leakage, resulting in low optical efficiency of the whole light, generally around 86%. And because of the small-angle design, the dividing line between the main spot and the sub-spot is relatively obvious, the spot is too hard, and the effect of the spot is poor, which cannot meet the aesthetic needs of modern humans. [0003] Current technology has the following drawbacks: [0004] 1. The optical space is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21V7/00F21Y115/10
CPCF21V5/04F21V7/00F21Y2115/10
Inventor 方惊响药左红胡太荣梁栋
Owner HENGDIAN GRP TOSPO LIGHTING
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