Patent ID: 6674587
Filing Date: 2004-01-06
Classification: C03C,C23C

Abstract:
A method of manufacturing a coated substrate to be used as TV screen filter, UV filter of automobile anti-glare filter, said method comprising providing a transparent substrate made of glass or synthetic material having a first and a second surface, coating a gradient density absorbing film on the first surface of the substrate, kept at an inclined position with an angle of inclination varying between 5Â° to 30Â° with respect to an evaporation source so as to obtain the following transmission data on the substrate:Distance from Right HandSide edge of thesubstrate% Transmission at 550 nmâ€‚50 mm45 to 50100 mm30 to 35200 mm50 to 60300 mm75 to 80masking the evaporation source during the deposition of the absorbing film and coating with one or more Anti Reflection (AR) materials on the first and the second surface of the substrate thereby obtaining the anti glare optical device.