1.59 PC finished single vision anti-fog HMC lens - From the origin of fog, we could see that its essence is micron-sized droplet. It would not slide (the angle that touches the surface are 0 ~ 5 °）if micron-sized droplet gets in touch with the surface of lens, then it is absorbed by the lens surface, change into the water film.The difference of transmittance between the water film and lens is tiny, so as to achieve the effect of anti-fogging.