Method of recording and reproducing for optical recording medium

Details Method of recording and reproducing for optical recording medium Method of recording and reproducing for optical recording medium

1991-12-03

1994-01-25

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Retrieving image made using radiation imagery

430 19, 430962, 430945, 430346, 430333, G11B 700

Patent

active

052815013

ABSTRACT:
Disclosed herein is a recording/reproducing method for an optical recording medium comprising a step of heating a recording layer containing a photochromic material and a polymer which are so combined with each other that a photostationary state attained upon irradiation with light of a specific wavelength is varied with temperatures, and a step of applying the light of a specific wavelength to the heated recording layer for bringing the same into a photostationary state and recording information. In order to reproduce the information, a portion of the recording layer which is in a photostationary state is selectively heated, and reproducing light is applied to reproduce recorded and unrecorded states.

REFERENCES:
patent: 3715212 (1973-02-01), Ross
patent: 3918972 (1975-11-01), Evens et al.
patent: 4837063 (1989-06-01), Irie
patent: 4960679 (1990-10-01), Nakagiri et al.
patent: 5026619 (1991-06-01), Trundle
Patent Abstracts of Japan, vol. 13, No. 464, Abstract of JP 1-182846, (Jul. 1989).
Patent Abstracts of Japan, vol. 11, No. 42, Abstract of JP 61-211835 (Sep. 1986).
Patent Abstracts of Japan, Vol. 13, No. 279, Abstract of JP 1-067727, (Mar. 1989).
Patent Abstracts of Japan, vol. 14, No. 464, Abstract of JP 2-181746, (Jul. 1990).
English language Abstract of JP 3-192345, Fukuchi, Aug. 1991.
English language Abstract of JP 61-214148, Matsuo et al., Sep. 1986.

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