The lens material: the polarized lens is the world recognized the most suitable for driving the lens. When light from an object's surface reflection has been polarized parts produce glare. The opposite of glare effect, enhance weakened brightness and color saturation; Object contour become blurred, eye fatigue, discomfort. Polaroid made according to the principle of polarization of light, effective eliminate the glare of the special function, make the drivers to improve vision, add a fun ride, and polarized lens according to the principle of polarization light volatility and shutters principle of design and manufacture, can effectively reduce glare, eliminate the dazzling light reflected and scattered light, let the messy the light into parallel light, make the vision more clearly soft and clear. Polaroid has 7 composite layer material, accord with national sun lenses, UV400 ultraviolet ray, all-around eye protection, driving, fishing, climb mountains, leisure, especially suitable for outdoor sports. We adopt the polarized lenses are all high quality polarized lenses. Good quality. Polarization test piece is used to test the polarization effect