The customized 1.56 SF Mirror Photochromic Brown lens in china is made of optical glass containing silver halide microcrystals, and works according to the principle of reversible light-color interconversion reaction. When the customized 1.56 SF Mirror Photochromic Brown lens is exposed to ultraviolet light, the halide ions emit electrons, and when these electrons are captured by the silver ions, a reaction occurs.The colorless silver halide in the customized 1.56 SF Mirror Photochromic Brown lens in china will be decomposed into transparent halogen atoms and opaque silver atoms. The silver atoms will absorb light, making the light transmittance of the lens lower and lower, resulting in discoloration. When the customized 1.56 SF Mirror Photochromic Brown lens in china leaves the light, the silver atoms and halogen atoms in the lens will recombine, and the lens will return to a transparent and colorless state.
To put it simply, the customized 1.56 SF Mirror Photochromic Brown lens in china is made of silver halide material during the lens processing process. This material will change color when exposed to ultraviolet rays, so the customized 1.56 SF Mirror Photochromic Brown lens in china will change color in the sun, and the color will deepen with the increase of ultraviolet rays, while indoors. As the UV rays weaken, the lenses become lighter in color.