| abstract |
The present invention is a coating for optical articles and optical filters containing at least one absorbing dye comprising one of the groups of the formulas (I), (II), (III) and (IV). Wherein R represents an aryl group or an alkyl group, and the groups of formulas (I), (II), (III), and (IV) are represented by —OH, —CN, bromo, —NO 2 , alkoxy, aryloxy, -COOH, -CHO, -CO alkyl, -CO aryl, haloalkyl, -SH, -S- alkyl, -S- aryl, -SO 2 alkyl, -OSO 2 alkyl, -SO 2 aryl, -OSO 2 Optical articles and optical media having at least one carbon atom substituted with a group selected from aryl and sulfonamide, or having at least two carbon atoms substituted with a chloro group. On Luther for coating. Embedded image |