1.56 Semi Finished Bifocal Photo grey optical lenses

Short Description:

In general, color-changing myopia glasses can not only bring convenience and beauty but also can effectively resist ultraviolet and glare, can protect the eyes, the reason for color change is that when the lens is made, it is mixed with light-sensitive substances, such as silver chloride, silver halide (collectively known as silver halide), and a small amount of copper oxide catalyst. Whenever the silver halide is illuminated by strong light, the light will decompose and become many black silver particles evenly distributed in the lens. Therefore, the lens will appear dim and block the passage of light. At this time, the lens will become colored, which can well prevent the light to achieve the purpose of protecting the eyes.

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Product Detail

Product Tags

Production Details

Place of Origin:	Jiangsu	Brand Name:	BORIS
Model Number:	Photochromic lens	Lenses Material:	SR-55
Vision Effect:	Bifocal Lens	Coating Film:	UC/HC/HMC/SHMC
Lenses Color:	White（indoor）	Coating Color:	Green/Blue
Index:	1.56	Specific Gravity:	1.28
Certification:	CE/ISO9001	Abbe Value:	38
Diameter:	75/70mm	Design:	Crossbows and others

Color-changing lenses are based on the principle of a reversible photochromatic tautometry reaction. When the lens is exposed to ultraviolet light, it can quickly darken, so as to block strong light, and absorb ultraviolet light. After returning to the dark, it can quickly recover the transparent state. At present, the lenses are divided into substrate color lenses and membrane color lenses. The first is to add a color-changing material to the lens, so that when light hits it, it will immediately change color to block ultraviolet rays. The other is to coat the surface of the lens with a color-changing film to block ultraviolet rays. At present, there are many kinds of lenses that change color, such as gray, brown, pink, green, yellow and so on.

Production Introduction

Color-changing glasses have the advantage of lenses

1. Eye protection: Due to the addition of light-sensitive silver chloride and other substances in the production process of color-changing myopia glasses, ultraviolet rays can be prevented from entering the eye under strong light and play a role in eye protection;

2, reduce eye wrinkles: wearing color-changing myopia glasses can avoid squinting in strong light, reduce the chance of eye wrinkles;

3, easy to use: after wearing color-changing myopia glasses, you can go out without carrying two pairs of glasses for exchange, with the advantages of convenient use.