Optical information recording medium using azo dyes

Details Optical information recording medium using azo dyes Optical information recording medium using azo dyes

1992-06-26

1993-12-21

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

430945, 430944, 430275, 3461351, G11B 724

Patent

active

052720470

ABSTRACT:
There is disclosed a recordable optical element that includes a metallized dye. The element has a transparent substrate and on the surface of the substrate, a dye containing recording layer and a light reflecting layer. The improvement is that the dye is a metal complex of a tridentate azo dye ligand containing, on one side of the azo linkage, an aminohydroxypyridine group and on the other side, an aromatic ring including an electron withdrawing substituent. The dyes that are used in the element are very light stable.

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