Blue light filtering, water and oil dirt preventing and wear resisting lens and preparation method thereof

Abstract

The invention relates to a blue light filtering, water and oil dirt preventing and wear resisting lens and a preparation method thereof. The lens comprises a substrate, and the inner surface and the outer surface of the substrate are provided with first films, second films, third films, fourth films and fifth films sequentially and symmetrically from inside to outside. The first films are titanium oxide layers, and the thickness ranges from 10 nm to 100 nm. The second films are silicon dioxide layers, and the thickness ranges from 50 nm to 100 nm. The third films are metal layers, and the thickness ranges from 5 nm to 20 nm. The fourth films are high-hardness layers, and the thickness ranges from 10 nm to 50 nm. The fifth films are fluoride layers, and the thickness ranges from 3 nm to 10 nm. The preparation method comprises the following steps that 1, the substrate is washed; 2, the inner surface and the outer surface of the substrate are coated with the films respectively. The lens can effectively filter out 33% of harmful blue light and dazzling light or above, visual fatigue can be effectively relieved, the wear resistance of the lens can be remarkably improved through the high-hardness layers, and the fluoride layers have the good hydrophobicity and oil dirt preventing function.

Description

technical field [0001] The invention relates to the technical field of lenses, in particular to a blue-light-filtering waterproof, oil-stained and wear-resistant lens and a preparation method thereof. Background technique [0002] With the continuous improvement of people's culture and living standards and the development of vision care work, glasses, as a simple optical device made to correct vision or protect eyes, have played an important role in people's daily life. Spectacles are usually composed of lenses and frames. From the function of lenses, it has the functions of adjusting the amount of light entering the eyes, increasing vision, protecting eye safety and clinically treating eye diseases. [0003] At present, there are many kinds of lenses, such as the common TAC polarized lens, which can block harmful light 100%, so it is very popular among consumers, especially suitable for outdoor sports. However, the lens will inevitably be scratched during exercise, so The ...

AI Technical Summary

Problems solved by technology

[0005] In addition, when people's hands touch the lens, the oil and water stains on the hands are easy to leave marks on the lens, and these marks are not easy to erase, which will affect the effect of the user's observation of things and give the user bring inconvenience

Moreover, frequent wiping of the lens can easily scratch the lens

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