Light moves in waves.When it's polarized by reflection off at a flat surface it consists of　"good" vertical light,which allows us to detect colors and contrasts,and "bad" light which moves horizontally to the eye,preventing clear visibility.This is perceived to be dazzling glare. In a polarized lens,the molecules are arranged in such a way that they only let vertical "good" light through.Horizontal light is selectivly filtered out.Normal lens darken "good" and "bad" light evenly.Only Polarized lens completely eliminate "bad" light,thus enabling absolutely true glare-free visibility.
The polarized lenses have been used for years by boaters and fisherman in order to protect and improve vision,with spending considerable time on water.However,in the past few years,the benefits of polarized sunglass have been realized by a variety of other outdoor sports enthusiasts as well as by general use wearer.They are also recommended for driving in daylight or at night(light yellow color) and in fact can reduce the glare that comes off a long,flat surface such as the hood of the car or a highway.

Hongtai developes a widest range of Polarized lenses:Injected Polarized lens (Eye-guard™ series) & TAC polarized film
● Eye-guard™ that Polarized injected Polycarbonate
● Eye-guard™-I that Polarized injected Complex materia
● Eye-guard™-II that Polarized injected TR-90(Topper™)
● TAC that a sandwich polarized lenses (TAC-polarizer-TAC)


How does the polarized lens work



　　The polarized lens that generates a world without glare