Optical recording medium

Details Optical recording medium Optical recording medium

1995-06-01

1997-08-12

Kiliman, Leszek

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428336, 428 643, 428 649, 428694MM, 428694EC, 428694DE, 428694RL, 428694MT, 428900, 369 13, G11B 566, B32B 516

Patent

active

056563701

ABSTRACT:
An optical recording medium for recording, reading, erasing information with beams has a layer composed of a lower thermal conductivity material and a heat sink layer of a higher thermal conductivity material sequentially laminated on a reading and reading layer composed of at lest a recording thin film and a reading thin film. Therefore, an optical recording medium can be realized where the range of the recording power to be tolerated even in a case of a disk smaller in track pitch and the movement of the central position of the temperature distribution is small, namely, an optical recording medium where the recording power margin is large and the high density recording operation can be effected.

REFERENCES:
patent: 4310899 (1982-01-01), Bresterbus et al.
patent: 4628485 (1986-12-01), Tanaka et al.
patent: 4814238 (1989-03-01), Tanaka et al.

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