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Material with blue light prevention function and protective film applying same

A technology of anti-blue light and protective film, applied in the field of optical materials

Active Publication Date: 2019-08-30
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that the above two methods of reflection and absorption have advantages and disadvantages, and are not optimal.

Method used

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  • Material with blue light prevention function and protective film applying same
  • Material with blue light prevention function and protective film applying same
  • Material with blue light prevention function and protective film applying same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] A broadband AR protective film with anti-blue light function, which includes a base 3, on which a high-refractive-index film layer made of a high-refractive-index material and a low-refractive-index film layer made of a low-refractive index material are arranged on the base 3 . Picture 1-1 It is a schematic diagram of the structure of the anti-blue light film of Example 1. The film layer in the figure is only a schematic diagram of the number of layers, and does not represent the actual thickness of the film layer.

[0066] The base of embodiment 1 adopts PC lens (polycarbonate), which has the advantages of excellent impact resistance, high refractive index, light specific gravity and 100% UV protection. Of course, according to needs, the substrate can also use polyethylene terephthalate (PET), cellulose triacetate (TAC), polymethyl methacrylate (PMMA), polycarbonate / polymethyl methacrylate Composite (PC / PMMA), polyimide (PI), polypropylene (PP), polyvinyl chloride (P...

Embodiment 2

[0081] A broadband AR protective film with anti-blue light function, it differs from Embodiment 1 in that: the PC lens is provided with a low refractive index material SiO 2 layer, the low refractive index material SiO 2 Layer with high refractive index material Cr 2 o 3 In this way, the high and low refractive index material film layers are arranged alternately, and a total of five layers are required on one side. From the front of the substrate, the anti-blue light film consists of a first low-refractive index film layer 101, a second high-refractive index film layer 102, a third low-refractive index film layer 103, a fourth high-refractive index film layer 104, The fifth low refractive index film layer 105 . The substrate adopts a double-sided symmetrical structure, and the anti-blue light film consists of the first low-refractive index film layer 201, the second high-refractive-index film layer 202, the third low-refractive index film layer 203, and the fourth high-refr...

Embodiment 3

[0091] A broadband AR protective film with anti-blue light function, it differs from Embodiment 1 in that: the PC lens is provided with a low refractive index material SiO 2 layer, the low refractive index material SiO 2 Layer with high refractive index material Cr 2 o 3 Layers, such high and low refractive index material film layers are arranged alternately, the fifth layer is MgF 2 . From the front of the substrate, the anti-blue light film consists of a first low-refractive index film layer 101, a second high-refractive index film layer 102, a third low-refractive index film layer 103, a fourth high-refractive index film layer 104, Layer 5 MgF 2 Layer 105. The substrate adopts a double-sided symmetrical structure, and the anti-blue light film consists of the first low-refractive index film layer 201, the second high-refractive-index film layer 202, the third low-refractive index film layer 203, and the fourth high-refractive-index film layer from the back of the substr...

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Abstract

The invention discloses a material with a blue light prevention function and a protective film applying the same. The material with a blue light prevention function comprises a high refractive index material including Cr2O3, and a low refractive index material including at least one of SiO 2, MgF2, HfO2, TmF3, TiN, ThF4, TbF3, Y2O3, TaN, SmF3, ScF3, PrF3, NdF3, Na3AlF6, MgO, LaF3, LuF3, Al2O3, Y2O3, BaF2, CaF2, LiF, HoF3, HfF4, GeO2, YF3, YbF3, CeF3, GdF3, A2O, Gd2O3, EuF3, Bi2O3, AlON, ATO, NdF3, WO3, or a mixture thereof. The material with a blue light prevention function has the following advantages that the material of the technical scheme reduces harmful blue light under the condition of not damaging color balance, ensures the transmittance of beneficial blue light and residual visible light wave bands, and simultaneously reduces residual reflection of the whole visible light wave band.

Description

technical field [0001] The invention relates to an optical material, in particular to a material with anti-blue light function and a protective film using the material. Background technique [0002] Blue light is an important part of natural light. Blue light hazard refers to the retinal damage caused by the photochemical reaction caused by radiation light with a wavelength between 400 and 500nm. With the awakening of consumers' awareness of "blue light protection", blue light protection has attracted the attention of consumers. Display screens or lighting systems currently on the market are often implemented with white light LEDs, and the most commonly used method is to use gallium nitride to emit blue light and add YAG phosphors. The radiation spectrum intensity of blue LEDs is mainly concentrated in the range of 400-500mm, especially in the low-energy blue light band with strong radiation intensity. Because the shorter the wavelength, the stronger the energy, so the ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20G02B5/22
CPCG02B5/207G02B5/226
Inventor 陈楠王雨思赵燕卜轶坤王佑鹏王庆归王会慧
Owner XIAMEN UNIV
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