Driving Photochromic Polarized Sunglasses Lenses Color:Gun frame Plastic handle type turbine

Plastic handle type turbine

Three-dimension cube stacking small design

2XXL - Hatchback 525L X 190W X 180H CM

Sprinklers for Garden

Metals Type: Copper

Driving Photochromic Polarized Sunglasses Lenses Color:Gun frame Plastic handle type turbineWhat are photochromic glasses? Photochromic lenses have millions of molecules of substances such as silver chloride or silver halide embedded in them. When exposed to UV rays, as in direct sunlight, the molecules undergo a chemical process that causes them to change shape. The new molecular structure absorbs portions of the visible light, causing the lenses to darken, and to improve vision while ensuring protection from hazardous optical radiation.