A high-strength anti-blue light, anti-ultraviolet PC lens and preparation method thereof

Abstract

The invention relates to a high-strength anti-blue light and anti-ultraviolet PC lens and a preparation method thereof. The optical-grade high-strength PC resin is used as a base material. The lens has good mechanical properties, good impact resistance, and high strength. The hardening of fluorine hardening solution solves the problem of poor wear resistance of PC resin. The prepared high-temperature resistant anti-blue light and anti-ultraviolet light absorber can have good compatibility with PC resin, and can process lenses through injection molding process, so that the preparation process is simple, the product stability is good, and the cost is low. The transmittance of the lens is improved by coating, and the chromatic aberration problem of the anti-blue light lens is solved as much as possible. PC lens has good visibility and excellent protection against harmful blue light and ultraviolet light, and retains beneficial blue light as much as possible. Under different light conditions, it can protect the eyes from the stimulation of harmful blue light and ultraviolet light, avoid Damage to the eyeball.

Description

technical field [0001] The invention relates to the field of preparation of optical resin lenses, in particular to a method for preparing high-strength anti-blue light and anti-ultraviolet PC lenses. Background technique [0002] Polycarbonate resin, also known as PC resin, is a thermoplastic material mainly used in the field of optical resins. It softens after heating and is suitable for thermoplastic and injection molding. Polycarbonate (PC) material has excellent mechanical properties, high plasticity, easy molding, excellent light transmittance, high impact strength 50 times higher than glass, good dimensional stability and firmness. At the same time, PC material also has good heat resistance, even if it is exposed to high temperature environment for a long time, its optical properties will not be changed. And the PC material itself has better absorption of ultraviolet light below 380nm, which is beneficial to the ultraviolet protection performance of the lens. [0003...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the deficiencies of the prior art, to provide a preparation method for high-strength anti-blue light and anti-ultraviolet PC lenses, to solve the problem of the decomposition of absorbents caused by the high thermoforming temperature of PC resin, and the problem of ultraviolet rays in traditional protection technologies. Exposure and the trade-off between harmful and beneficial blue light

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