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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AI-Extracted 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 ...

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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.

Technology Topic

TransmittanceCataracts +9

Examples

Experimental program(3)

Example Embodiment

[0013] Example 1:

[0014] The preparation method of ultraviolet protective lens includes the following steps:

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

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

[0017] (3) In 3×10 -3 Under Pa vacuum degree and 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 outwards, using the film thickness controller in the vacuum coating machine Control the thickness of the titanium dioxide film to 20nm and the thickness of the silicon dioxide film to 30nm, and alternate coatings 10 times.

[0018] The visible light transmittance of the UV protective lens before coating is 91%, the ultraviolet transmittance of wavelengths below 380nm is 50%, the visible light transmittance after coating is 93%, the ultraviolet transmittance of wavelengths below 380nm is 20%, and the lens is colorless and transparent .

Example Embodiment

[0019] Example 2:

[0020] The preparation method of ultraviolet protective lens includes the following steps:

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

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

[0023] (3) In 2.9×10 -3 Under Pa vacuum degree and glass substrate temperature 310℃, use ion gun to bombard the coating material in turn, and alternately coat zirconium dioxide film and silicon dioxide film from the glass substrate outwards, using the film thickness controller in the vacuum coating machine Control the film thickness of the titanium dioxide film to 15nm, the film thickness of the silicon dioxide film to 35nm, and alternate plating 15 times.

[0024] The visible light transmittance of the UV protective lens before coating is 91%, the ultraviolet transmittance of wavelengths below 380nm is 50%, the visible light transmittance after coating is 94%, the ultraviolet transmittance of wavelengths below 380nm is 18%, and the lens is colorless and transparent .

Example Embodiment

[0025] Example 3:

[0026] The preparation method of ultraviolet protective lens includes the following steps:

[0027] (1) The glass substrate to be coated is cleaned by ultrasonic 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 and glass substrate temperature 290℃, use ion gun to bombard the coating material in sequence, and alternately coat zirconium dioxide film and magnesium fluoride film from the glass substrate outwards, using the film thickness controller in the vacuum coating machine Control the film thickness of the titanium dioxide film to 25nm and the film thickness of the silicon dioxide film to 40nm, and alternate plating 20 times.

[0030] The visible light transmittance of the UV protective lens before coating is 91%, the ultraviolet transmittance of wavelengths below 380nm is 50%, the visible light transmittance after coating is 95%, the transmittance of ultraviolet rays below 380nm is 15%, and the lens is colorless and transparent .

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Good UV protection
High Visible Light Transmission

Preparation method of anti-aging and anti-bacterial PE pipe

ActiveCN103881220AReduce deforestationGood UV protectionComposite materialAnti bacterial

Owner:GUANGXI JIALI IND & TRADE

Magnalium-based layered double-hydroxide/SBS composite modifier, modified asphalt and preparation method of magnalium-based layered double-hydroxide/SBS composite modifier

InactiveCN104177752AGood UV protectionAvoid degradationBuilding insulationsAsphaltAging resistance

Owner:WUHAN UNIV OF TECH

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

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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