Croslite is a patented sealing resin material, which is neither rubber nor plastic.
Refer to the discoloration principle of sunglasses:
1 The lens materials of sunglasses and functional sunglasses mainly include glass materials and [resin materials].
2 There is one kind in the lens classification-> Color-changing film: it can change color according to the intensity of solar ultraviolet rays and the change of environmental temperature.
3 The principle of color change is to add photochromic factors into lenses: generally, silver bromide particles are added into glasses, and silver bromide will be decomposed into bromine ions and silver ions under the irradiation of ultraviolet rays, in which silver ions are black. The degree of decomposition varies with the intensity of ultraviolet rays. When the indoor ultraviolet intensity weakens, bromine ions and silver ions will be converted into silver bromide, which is a reversible reaction. In addition to adding silver bromide raw materials into the lens, some catalysts should be added to ensure the balance of chemical reaction and some colorants will make the lens have different colors. It seems that we have learned it. I think this shoe can either achieve more complicated color change or combination technology through chemistry, or use other color change factors.