Optical recording medium

Details Optical recording medium Optical recording medium

1991-11-12

1993-02-16

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

430495, 430945, G03C 172

Patent

active

051870436

ABSTRACT:
Described is an optical recording medium comprising at least one of naphtholactam compounds represented by the specific formulas. The optical recording medium has absorption at the long wavelength side, can make a record with high sensitivity even when a long wavelength oscillation laser such as a semiconductor layer is used, and can obtain a high C/N ratio because of the capability of forming pits with good shapes. It is also possible to provide an optical recording medium which can be readily prepared by coating, has good stability to heat, and has superior storage stability with less reproduction deterioration.

REFERENCES:
patent: 4756987 (1988-07-01), Maeda et al.
patent: 4876356 (1989-10-01), Dust et al.
patent: 4906541 (1990-03-01), Dust et al.
patent: 4939012 (1990-07-01), Dust et al.

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