Optical recording medium

Details Optical recording medium Optical recording medium

1991-04-24

1993-04-20

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430276, 430278, 430495, 430945, 3461351, G03C 172, B41M 524

Patent

active

052042200

ABSTRACT:
An optical recording medium comprises a light transmissive substrate, a light absorption layer provided on the light transmissive substrate and a light reflecting layer provided on the light absorption layer. The light absorption layer contains a cyanine type dye represented by a following structural formula: ##STR1## and a quencher represented by a following general formula: ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 denote hydrogen or substituent group, respectively. A protective layer may be further provided on the light reflecting layer for protecting the same.

REFERENCES:
patent: 4626496 (1986-12-01), Sato
patent: 4652514 (1987-03-01), Abe et al.
patent: 4767693 (1988-08-01), Oba et al.

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