One step antiglare sol—gel coating for screens by sol—gel techniques

Anti-reflection coatings on glass substrates were prepared by the application of sol—gel coatings of silica containing crystalline tin oxide particles. The sol was coated on commercially available float glass by dip-coating and spin-coating techniques. Increasing the surface roughness of the float glass (factor of 50) by a particulate coating material resulted in anti-reflection effects comparable to frosted glass. Haze and clarity, which are a measure for the contrast and definition of an optical system, were determined and compared to the uncoated and the commercial frosted glass. The reflectivity of the float glass could be reduced from 9% to 3%, which is a factor of two better than that of glasses.