Data recording medium and manufacturing method therefor

Details Data recording medium and manufacturing method therefor Data recording medium and manufacturing method therefor

1981-10-06

1984-02-14

Goldberg, E. A.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

346 76L, G01D 1532

Patent

active

044320027

ABSTRACT:
A data recording medium comprises two disc-shaped substrates opposing each other at a distance; a pair of radiation-sensitive recording layers, each of which is formed on part of an opposing surface of each of the substrates and which oppose each other at a distance; and an interlayer with a low reflectivity which fills a space defined by the recording layers and which is bonded to the recording layers. Optical data may be recorded on a record or read out from the record by focusing a laser beam on the recording layers.

REFERENCES:
patent: 3665483 (1972-05-01), Becker et al.
patent: 4264911 (1981-04-01), Wilkinson

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