What are the materials of sunglasses

1. PC film (carbonated polyester lens): tough, not easy to break, impact resistant, specially designated lens material for sports glasses, the price is higher than acrylic lens;

2. Glass sheet: the clarity is slightly higher than that of resin, but the first is heavy, and the second is easy to break (even tempered glass);

3. Resin sheet: Resin is a chemical substance with a phenolic structure. Features: light weight, high temperature resistance, strong impact resistance, and can effectively block ultraviolet rays;

4. Nylon sheet: made of nylon, characteristics: very high elasticity, excellent optical quality, strong impact resistance, usually used as protective items;

5. AC film (acrylic lens): It has excellent toughness, light weight, high perspective rate, and good anti-fog performance.

6. Polarizer: Polaroid film, its function is to only accept light from one direction, and block light from other directions. It uses the principle of blinds to filter stray light, so that we can see things more clearly
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Polarizer principle: In order to filter the glare of the sun in the same direction on the water, land or snow, a special vertical coating is added to the lens, which is called a polarized lens.

Advantages: Eliminate glare, preferred by car drivers.

Anti-ultraviolet rays and various harmful rays in the sun prevent the occurrence of cataracts.