Anti-blue light intelligent photochromic lens

Abstract

The invention relates to the field of optical lenses, in particular to an anti-blue light lens and a preparation method thereof for products such as glasses and shielding films. The invention aims toprovide a self-adaptive anti-blue light photochromic lens which not only can fit rays of different intensity, but also can resistant blue light, and is prepared by adopting a blue light barrier film and a photochromic film compounding process. The technical scheme of the invention is as follows: the photochromic film and the blue light barrier film are compounded by way of compounding multilayer functional films to block blue light; the color of the photochromic film changes along with intensity of rays, so that the ray passing rate of the lens is adjusted automatically, and the ray passing rate is 85% or higher. The lens is simple in structure and convenient. The barrier rate of blue light wave bands with light wave length UV400-UV500 reaches 45% or higher, the passing rate of UV410 lightwaves does not exceed 10%, the passing rate of UV420 light waves does not exceed 10%, and the passing rate of UV430 light waves does not exceed 30%. The lens has the photochromic function.

Description

technical field [0001] The invention relates to the field of optical lenses, in particular to an anti-blue light and anti-ultraviolet photochromic lens and a preparation method thereof, which can be used for glasses, light-shielding films and other products. Background technique [0002] Blue light can cause damage to human eyes, especially electronic products such as mobile phones and computers have become inseparable supplies in daily life. Long-term exposure to blue light with a wavelength of 400-455nm can cause damage to human eyes, and can cause blindness in severe cases. At present, the existing anti-blue light lenses cannot make adaptive adjustments to different intensities of outdoor light. For example, when the sun’s light intensity is high, more light needs to be blocked so that people do not feel glare. When the indoor light is weak, the light transmission rate of the lens is required. Higher improves clarity. Contents of the invention [0003] The purpose of t...

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Problems solved by technology

[0002] Blue light can cause damage to human eyes, especially electronic products such as mobile phones and computers have become inseparable supplies in daily life. Long-term exposure to blue light with a wavelength of 400-455nm can cause damage to human eyes, and can cause blindness in severe cases. At present, the existing anti-blue light lenses cannot make adaptive adjustments to different intensities of outdoor light. For example, when the sun’s light intensity is high, more light needs to be blocked so that people do not feel glare. When the indoor light is weak, the light transmission rate of the lens is required. higher sharpness

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