Data recording medium

Details Data recording medium Data recording medium

1981-10-07

1984-04-17

Goldberg, E. A.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

346 76L, G01D 1534

Patent

active

044438060

ABSTRACT:
A data recording medium comprises a pair of disc-shaped substrates opposing each other at a distance; a radiation-sensitive recording layer formed on an opposing surface of each of the substrates; and a protective layer formed on each of the radiation-sensitive recording layers. Optical data may be recorded on the record or may be read out from this record by focusing a laser beam on the recording layer.

REFERENCES:
patent: 3665483 (1972-05-01), Becker et al.
patent: 4074282 (1978-02-01), Balas, Jr. et al.
patent: 4264911 (1981-04-01), Wilkinson
patent: 4282534 (1981-08-01), Shinozaki et al.
patent: 4360820 (1982-11-01), Forster et al.

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