Sunglasses lenses are divided into: PC lens, glass lens, resin lens, nylon lens, AC lens, polarized lens

1. PC lens (carbonated polyester lens): strong, not easy to break, impact-resistant, specially designated lens material for sports glasses,

the price is higher than acrylic lens;

2. Glass lens: The clarity is slightly higher than that of resin, but it is heavier and easier to break (even tempered glass);

3. Resin lens: Resin is a chemical substance with a phenolic structure. Characteristics: light weight, high temperature resistance, strong impact

resistance, and can effectively block ultraviolet rays;

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

5. AC lens (acrylic lens): It has excellent and strong properties, is light in weight, has extremely high perspective, and has good fog resistance.

6. Polarized lens: It is a 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.