Optical information recording media substrate

Details Optical information recording media substrate Optical information recording media substrate

1986-11-19

1988-11-29

Stephan, Steven E.

Dynamic information storage or retrieval

Storage medium structure

Layered

369110, 369286, 369288, G11B 724, G11B 584

Patent

active

047886781

ABSTRACT:
An optical information recording media substrate made of a plane shaped molded object using thermo-plastic resin possessing optical anisotropy. A light beam is condensed in the direction perpendicular to the plane surface, transmitted through the plane surface and led to a recording media surface on which a recording media is formed. The direction of the optic axis of the light beam is set parallel to that of the plane surface to diminish the deterioration of the C/N ratio of the reproduced signal.

REFERENCES:
patent: 4037929 (1977-07-01), Bricot et al.
patent: 4551733 (1985-11-01), Cornet et al.

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