Optical recording medium and recording process utilizing the sam

Details Optical recording medium and recording process utilizing the sam Optical recording medium and recording process utilizing the sam

1988-05-31

1991-01-08

Ryan, Patrick

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428209, 4284111, 428412, 428457, 428458, 428461, 428463, 4284744, 428480, 428500, 428697, 428704, 428913, 430945, 346766, 3461351, 369288, B32B 302

Patent

active

049834401

ABSTRACT:
An optical recording medium comprising a plastic substrate having a surface of minutely roughened structure and a thin metal film formed on the substrate is capable of strongly absorbing laser light of a specific wavelength region, thereby writing data on the medium. The optical recording medium is characterized in that the thin metal film comprises a metal of the platinum group and a second metal or semi-metal such that the thermal conductivity of the thin metal film is not higher than 80% of the thermal conductivity of the platinum group pure metal. The optical recording medium is, since jitter has been decreased, capable of a high-sensitivity and high-CNR recording.

REFERENCES:
patent: 4499178 (1985-02-01), Wada et al.
patent: 4795660 (1989-01-01), Cooray et al.
patent: 4840873 (1989-06-01), Kobayashi et al.
CA 111(16):144217j, Ikeda et al., JP01051990.

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