Color resin spectacle lens and preparation method thereof

Abstract

The invention relates to a colored resin spectacle lens. The colored resin spectacle lens comprises a resin lens base body, wherein a hardened film layer is evaporated on the front surface of the resin lens base body; an absorbing material film layer is evaporated on the surface of the hardened film layer; an anti-reflection film group layer is evaporated on the surface of the absorbing material film layer; a metal oxide film layer is evaporated on the anti-reflection film group layer; and a fluoride film layer is evaporated on the metal oxide film layer. The resin spectacle lens adopting the structure can play a blue light absorbing role while guaranteeing high visible light transmittance and oil and UV resistance, so that the colored resin spectacle lens which is resistant to UV and blue light is achieved. A preparation method can effectively guarantee the deposition mass of all the film layers, greatly improves the qualification rate of lens, and endows the lens with an excellent oil and UV resistant effect, as well as good smoothness.

Description

technical field [0001] The invention relates to an eyeglass lens, in particular to a colored resin eyeglass lens and a preparation method thereof. Background technique [0002] With the improvement of people's living standards and the strengthening of aesthetic awareness, people are increasingly emphasizing their own way, sunglasses are becoming more and more popular, and the amount of colored lenses is increasing. Colored lenses or tinted lenses are the promotion of each user's personality. At the same time, most of the colored lenses are completed by depositing dyes or pigments on the lens material. This method assists the deposition of dyes through solvents with dyeing aids. At the same time, it is accompanied by a heating process, which is conducive to the movement and diffusion of dyes or pigments. Since the emergence of dyeing technology, the lenses have changed from colorless to colorful, showing strong advantages in various occasions, such as wearing with a certain ...

AI Technical Summary

Problems solved by technology

Among the commonly used materials, lenses with a refractive index of CR39 and 1.56 are relatively easy to be colored. Because the main material of high-refractive index materials is polyurethane, which is densely aggregated, it is very difficult to dye. Even at 200 degrees Fahrenheit for half an hour, the coloring depth is only 45. %, and PC materials are difficult to dye, and it is extremely difficult to change the degree of polymerization of high refractive index materials or PC

So the effect of this method is not very obvious

[0005] 2. Add various solvents, such as: benzyl alcohol, etc., and add some surfactants at the same time. This method is beneficial to the dispersion and deposition of dyes or pigments, but it is harmful to the human body and irritating. The degree of color is different, the thickness is different, and the dyeing time will change, which makes the dyeing process difficult to control, and the final effect is not very good

However, since the lens is an optical component, high-precision filtering is involved in the production process, so the particles of the pigment larger than 300nm are often filtered out, thus affecting the color

The dye will basically participate in the reaction, resulting in affecting other physical properties of the lens, so this technology is rarely used in the industry

Images