AR coated glass is also called high transmittance photovoltaic glass, which is coated on the basis of ultra white calendering glass with a layer of nano scale SiO2 anti reflection film. The AR coated glass developed by Follett is a leading international technology and equipment, and then made of toughened after coating. It greatly reduces the reflection ratio of the glass surface and improves the transmission ratio, thus improving the conversion efficiency of the component and the output power of the photovoltaic module.