Definition / Theory

The first reason of lens fogging is that the hot gas inside of the lens will liquefy when encountering the colder lens , which will cause lens fogging; The anti-fog lens is with a layer of TAC film which is alkali treated  in alkaline etching solution to change the contact angle between the surface and water drops, so that the first and second surfaces of the anti-fog film are converted from hydrophobicity to hydrophilicity.

Product Performance

1)Long time the anti fogging effect, keeping the wearer with better visual transmittance, ensure the wearer's safety during walking.

2)Anti-fog effect is with permernanet longevity.

3)Anti-fog TAC layer with high transittance which will not affect the lens's transmittance.

4)Good anti-fog effect. Test it at 85 degree water and no fogging wthin 3min.