Do you know the material and characteristics of optical lenses?

Resin lenses

The mainstream choice is only one-third the weight of glass lenses, with strong impact resistance and safety.

The light transmittance can reach 84% -90%, and the surface hardness and wear resistance can be increased by coating.

Must comply with the national standard "Optical Resin Lens for Glasses" (QB/T 2506-2017).

PC lenses (polycarbonate)

Also known as "space film", it has strong toughness and is not easy to break, suitable for sports scenes.

UV protection, but poor wear resistance and high price.

Glass lenses

High hardness, good wear resistance, and a refractive index of up to 1.9 (ultra-thin design).

Disadvantages: Heavy weight can easily compress the nose bridge, posing a risk of breakage and gradually being replaced.