Polarizer is manufactured according to the principle of polarization of light. Also known as the Tiffany and Co Charm Bracelet Jewelry Outlet polarizer, is the use of polarization features to polarized lenses to non-metallic objects, such as water filters eliminate reflective lens. Reflective polarizer can be eliminated and make the colors more vivid, and even some movies shot the entire film with a polarizer to make the picture more gaudy colors. When the sun projected on the road or water, direct irritation of the eyes, the eyes dazzle, fatigue, vision can not be sustained. Especially when you drive a car, outdoor recreational activities, not only affects our emotions work and play, and even affect our sense of the images and danger; long withstand direct sunlight, but also lead to the rapid decline in vision, form of myopia, hyperopia, astigmatism or cataracts.

Can clearly be seen by comparing the Fake Oakleys Frogskins Sunglasses Cheap for Sale polarized lenses when not in use can only see one person after using polarized lenses can clearly see this man caught a big fish.

Color glasses principles

The mystery of the lens in color glasses. In the lens manufacturing process, the UV-sensitive pre-braced substances - silver halide, and a small amount of copper oxide catalyst. Glasses from no color becomes light gray, dark brown, black glasses and then changed back from ordinary glasses, silver halide changes are "magic." In the mirror of the lens material, there is the photosensitive film exposure imaging process very similar changes. The silver halide to light decompose into many black silver particles uniformly distributed in the lens, the lens so dim, blocking passage of light, which is darker. However, the situation is different, and photographic film is the decomposition of silver halide and halogen atoms, still tightly put together. When back a little darker place, in the role of copper oxide catalyst, silver and halogen compounds re-produce silver halide, lenses again become transparent. Lenses discoloration speed and depth extent of UV intensity and ambient temperature. UV discoloration stronger faster, whereas the slower speed; higher the ambient temperature, the lens color slightly lighter, slightly darker and vice versa. With advances in manufacturing technology, discoloration rate of photochromic Fake Oakleys Gascan Sunglasses Cheap for Sale lenses, especially fading rate has been improved so much depth to the color temperature of the interference is also getting smaller and smaller.