Optical recording medium and method of reproducing information r

Details Optical recording medium and method of reproducing information r Optical recording medium and method of reproducing information r

1992-10-15

1994-02-08

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428913, 430270, 430945, 346 76L, 3461351, 369288, B32B 300

Patent

active

052846911

ABSTRACT:
Disclosed is an optical recording medium having recording film containing a photochromic material and a binder, in which the photochromic material is acid anhydride of diarylethene derivative and the binder is polycarbonate. Owing to this structure, the optical recording medium can reliably keep information recorded thereon even when the information is repeatedly reproduced.

REFERENCES:
patent: 5151310 (1992-09-01), Yanagisawa
patent: 5183726 (1993-02-01), Taniguchi
patent: 5215868 (1993-06-01), Taniguchi et al.

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