Light-scattering coating, its preparation and use

Details Light-scattering coating, its preparation and use Light-scattering coating, its preparation and use

G - Physics

02

B

G02B 1/10 (2006.01) C03C 17/25 (2006.01) C09D 1/00 (2006.01) F21V 5/00 (2006.01) F21V 7/22 (2006.01) H01J 9/20 (2006.01) H01J 61/35 (2006.01) H01K 1/32 (2006.01)

Patent

CA 2116948

LIGHT-SCATTERING COATING, ITS PREPARATION AND USE ABSTRACT OF THE DISCLOSURE A light-scattering coating comprising light- scattering particles, such as alumina, dispersed in a silica matrix is formed by applying to the filter a silicone solution in which is dispersed colloidal silica and the light-scattering particles to a suitable substrate and then pyrolyzing the dispersion at high temperature to drive off the organic components and form the silica matrix. This coating is hard and abrasion resistant and is useful for reflectors, lamps and lenses.

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