Patent ID: 8358467

Claim:
An article comprising a substrate and an anti-reflection coating deposited onto at least one main surface of the substrate, said anti-reflection coating comprising: (a) a first coating layer having a high refractive index deposited onto the substrate; (b) an epoxide-silica coating layer deposited onto the first coating layer, wherein the epoxide-silica coating layer comprises a silicon dioxide component and an organo-silicate component having the molecular formula R a SiO (4-a)/2 , in a continuous cross-linked network, wherein R is an organic group that forms stable chemical bonds with silicon, and a is an integer between 1 and 3; and (c) a silica coating layer deposited directly onto the epoxide-silica coating layer, consisting essentially of silicon dioxide; wherein the silica coating layer is the outermost layer of the anti-reflection coating.