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Ultraviolet protective lens and preparation method

A lens and ultraviolet technology, applied in the field of optical lenses, can solve the problems of low visible light transmittance, affecting human observation, etc., and achieve good ultraviolet protection effect and high visible light transmission effect

Inactive Publication Date: 2016-02-03
YUNNAN HUIHENG OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the visible light transmittance is low and affects the observation of human eyes when wearing sunglasses to block ultraviolet rays and prevent cataracts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0014] The preparation method of ultraviolet protection lens, comprises the steps:

[0015] (1) The glass substrate to be coated is cleaned by ultrasonic waves to remove stains and dried;

[0016] (2) Place the glass substrate to be coated in the vacuum chamber of the vacuum coating machine, at 3 × 10 -3 Bombard the glass substrate with an ion gun under Pa vacuum;

[0017] (3) in 3×10 -3 Pa vacuum degree, glass substrate temperature 300 ℃, use ion gun to bombard the coating material in sequence, and alternately coat titanium dioxide film and silicon dioxide film from the glass substrate outward, use the film thickness controller in the vacuum coating machine The thickness of the titanium dioxide film is controlled to be 20 nm, and the thickness of the silicon dioxide film is 30 nm, and the films are alternately coated 10 times.

[0018] Before coating, the visible light transmittance of the UV protective lens is 91%, and the transmittance of ultraviolet rays below 380nm is ...

example 2

[0020] The preparation method of ultraviolet protection lens, comprises the steps:

[0021] (1) The glass substrate to be coated is cleaned by ultrasonic waves to remove stains and dried;

[0022] (2) Place the glass substrate to be coated in the vacuum chamber of the vacuum coating machine at 2.9×10 -3 Bombard the glass substrate with an ion gun under Pa vacuum;

[0023] (3) at 2.9×10 -3 Pa vacuum degree, glass substrate temperature 310°C, use ion gun to bombard the coating material in turn, and alternately coat zirconium dioxide film and silicon dioxide film from the glass substrate outward, use the film thickness controller in the vacuum coating machine The thickness of the titanium dioxide film was controlled to be 15nm, and the thickness of the silicon dioxide film was 35nm, and the films were alternately coated 15 times.

[0024] Before coating, the visible light transmittance of the UV protective lens is 91%, and the transmittance of ultraviolet rays below 380nm is 5...

example 3

[0026] The preparation method of ultraviolet protection lens, comprises the steps:

[0027] (1) The glass substrate to be coated is cleaned by ultrasonic waves to remove stains and dried;

[0028] (2) Place the glass substrate to be coated in the vacuum chamber of the vacuum coating machine at 3.1×10 -3 Bombard the glass substrate with an ion gun under Pa vacuum;

[0029] (3) at 3.1×10 -3 Pa vacuum degree, glass substrate temperature 290°C, use ion gun to bombard the coating material in sequence, and alternately coat zirconium dioxide film and magnesium fluoride film from the glass substrate outward, use the film thickness controller in the vacuum coating machine The thickness of the titanium dioxide film was controlled to be 25nm and the thickness of the silicon dioxide film to be 40nm, and the films were alternately coated 20 times.

[0030] Before coating, the visible light transmittance of the UV protective lens is 91%, and the transmittance of ultraviolet rays below 38...

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PUM

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Abstract

The invention discloses an ultraviolet protective lens and a preparation method thereof. The ultraviolet protective lens includes a glass substrate, and is characterized in that a high refractive film and a low refractive film are alternately plated on the glass substrate, the thickness of the high reflective film is 10-30nm, the thickness of the low refractive film is 25-50nm, and the high refractive film and the low refractive film are alternated by 10-25 times. The ultraviolet protective lens prepared by the method provided by the invention has high visible light transmission and good ultraviolet protection effect, realizes perfect unification of ultraviolet protection and normal observation, and solves the problem that when sun glasses are worn to block ultraviolet and control cataract, the visible light transmittance is low and can affect human eye observation.

Description

technical field [0001] The invention relates to the field of optical lenses, in particular to an ultraviolet protective lens and a preparation method thereof. Background technique [0002] Long-term chronic ultraviolet radiation is the most important cause of cataracts, and wearing anti-ultraviolet glasses is the best way to prevent cataracts. Sunglasses prevent ultraviolet rays by blocking or absorbing part of the light, and are the most common anti-ultraviolet glasses. However, while sunglasses block ultraviolet rays, they also block the transmission of visible light, which reduces the observation effect of the human eye. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the visible light transmittance is low and affects the observation of human eyes when wearing sunglasses to block ultraviolet rays and prevent cataracts. Provided are an ultraviolet protective lens with high visible light transmission, good ultraviolet...

Claims

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Application Information

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IPC IPC(8): C03C17/34
Inventor 訾云海杨勇鞠云祥訾云旭李莉句红兵荀涛张宝福
Owner YUNNAN HUIHENG OPTOELECTRONICS TECH
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