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A multi-layer superimposed polymer composite light diffusion plate and its production process

A technology of composite light and diffuser, applied in layered products, synthetic resin layered products, optics, etc., can solve the problems of light efficiency, haze and poor light transmittance, and solve the problem of haze and light transmittance. Low, high color rendering, high uniformity effect

Active Publication Date: 2021-11-26
GUANGDONG ODIMING OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a multi-layer superimposed polymer composite light diffusion plate, which adopts a multi-layer light diffusion plate with more than three layers of different functions similar to a “sandwich”, thereby ensuring The light diffuses evenly, and then achieves optical effects such as high light efficiency, high haze, high uniformity, and high color rendering, thereby solving the problems of poor light efficiency, haze, and light transmittance in the prior art

Method used

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  • A multi-layer superimposed polymer composite light diffusion plate and its production process
  • A multi-layer superimposed polymer composite light diffusion plate and its production process

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Experimental program
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Embodiment 1

[0033] Such as figure 1 and figure 2As shown, the multi-layer superimposed polymer composite light diffusion plate provided in Embodiment 1 includes a base layer 2, a light incident layer 1 and an active layer 3, the light incident layer 1 is located on the first surface of the base layer 2, and the active layer 3 is located on the second surface of the base layer 2. The base layer 2, the light incident layer 1, and the active layer 3 are made of the same material, which can greatly reduce production costs and improve production efficiency, while in the prior art it is usually necessary to use multiple materials or various types of additives , to achieve optical effects such as high light efficiency, high haze, high uniformity, and high color rendering.

[0034] Relevant theoretical basis: According to the Beer-Lambert law A=lg(1 / T)=Kbc, b is the thickness of the absorbing layer, c is the concentration of the light-absorbing substance, and both b and c are proportional to t...

Embodiment 2

[0048] Such as figure 1 As shown, a production process for the above-mentioned multi-layer superimposed polymer composite light diffusion plate provided in Embodiment 2 is implemented according to the following steps:

[0049] The thicknesses of the light-incident layer 1 , the base layer 2 and the active layer 3 are set according to preset thicknesses.

[0050] One of the three materials of GPPS, PMMA and PC is selected as the raw material of the optical layer.

[0051] A first-type light-diffusing agent is added to the raw material of the optical layer of the base layer 2 to form the first-type light-diffusing particles.

[0052] A second-type light-diffusing agent is added to the raw material of the photo-layer of the active layer 3 to form second-type light-diffusing particles.

[0053] The addition amount of the first type of light diffusion agent and the first type of additive should make the first type of light diffusion particles in the base layer 2 be in the first c...

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Abstract

The invention discloses a multi-layer superimposed polymer composite light diffusion plate, which belongs to the field of light diffusion plates. The composite light diffusion plate includes a base layer, which contains the first type of light diffusion particles with a first concentration, and is used for secondary refraction and scattering treatment of incident light. . The light incident layer is used to reduce the reflection of incident light, and the light incident layer is located on the first surface of the base layer. The active layer contains the second type of light-diffusing particles at a second concentration, and is used to realize the Lambertian light distribution function, and the active layer is located on the second surface of the base layer. The multi-layer superimposed polymer composite light diffusion plate disclosed by the present invention adopts a multi-layer light diffusion plate with more than three layers of different functions similar to a "sandwich", so as to ensure uniform light diffusion, and then achieve high light efficiency, high haze, and uniformity. High degree of light, high color rendering and other optical effects, thereby solving the problems of poor light efficiency, haze and light transmittance in the prior art.

Description

technical field [0001] The invention relates to the field of light diffusion plates, in particular to a multi-layer superimposed polymer composite light diffusion plate and a production process for the light diffusion plate. Background technique [0002] The light diffusion plate is a kind of material with light diffusing properties, its main function is to adjust the light, make the light refract, reflect, and scatter in different directions, so as to change the path of light. Usually, the light diffusion plate is a plastic plate with certain optical characteristics such as haze, light transmittance, and refractive index, which can effectively convert point or line light sources into soft and uniform surface light sources. Therefore, the light diffusion plate is widely used in LED light sources, and plays a key role in the secondary light distribution of LED light sources. [0003] Chinese Patent Literature Publication No. CN110261943A discloses a multi-layer co-extruded c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/02B32B33/00B32B27/36B32B27/30B32B27/20B32B27/08B32B7/023
CPCB32B27/08B32B27/20B32B27/302B32B27/308B32B27/365B32B33/00B32B2307/40B32B7/023G02B5/0226G02B5/0242G02B5/0268
Inventor 陈锦全
Owner GUANGDONG ODIMING OPTOELECTRONICS TECH CO LTD
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