Method of producing an optical recording medium and an optical r

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device

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430270, 430271, 430339, 430945, 346 11, 346 76L, 346 77E, 3461351, G03C 500

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active

049006495

ABSTRACT:
A method of producing an optical recording medium according to the present invention includes the steps of forming a recording film on a transparent substrate, recording signals in the form of perforated pit rows on the recording film by a laser beam, and forming a reflection layer on the recording film on which the pit rows have been formed. The recording film is bleached after recording or the laser beam used for recording is selected to have a wavelength different from that of a laser beam used for reproducing so that the recording film is transparent to the laser beam used for reproducing.

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Willard, H. et al., "Instrumental Methods of Analysis, 6th ed.", Nostrand Company, New York, p. 4 (1981).
Bartolini, R. A. et al., "Optical Disk Systems Emerge", IEEE Spectrum, Aug. 1978, pp. 20-28.

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