Manufacture of photochromic sunglasses

Abstract

The manufacture of photochromic sunglasses includes the preparation of photochromic coating liquid through mixing solvent alkane or its derivative or substituent, cyclane, arene or its derivative, or alcohol, filming agent organosilicon resin, acrylic acid resin, carbonate, polycarbonate or polystyrene, photochromic matter, ultraviolet ray absorbent and antioxidant; and painting or soaking the photochromic coating liquid to the sunglasses base sheet in the conditions of 15-30 deg.c temperature, 20-60 % humidity and 0.02-0.2 sq cm / s speed. The said photochromic sunglasses is antiaging and uvioresistant.

Description

technical field [0001] The invention relates to a manufacturing method of photochromic sunglasses which can automatically adjust the transmittance of the sunglasses according to the intensity of light and return to the original state when there is no light irradiation. Background technique [0002] In the past, in order to protect the eyes from the stimulation of strong external light, the preventive measures of wearing sunglasses or plain glasses were usually adopted. However, when the sunglasses are exposed to strong sunlight, the illumination state suddenly changes. For example, when entering a room, they cannot be automatically adjusted, resulting in weakened vision and unclear surroundings. To solve this problem, Patent Publication No. 1311862 discloses a technology of a photochromic ophthalmic lens and its preparation method, which includes a substantially transparent base having the shape of a lens and at least one film Adhesive is pulled onto at least one surface of...

AI Technical Summary

Problems solved by technology

Although the photochromic spectacle lens solves the above problems, there are problems such as complicated preparation process, long production cycle and high manufacturing cost.