Optically readable information disk

Details Optically readable information disk Optically readable information disk

1980-09-08

1983-06-21

Lesmes, George F.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

428463, 428522, 428 64, 428913, 369284, 369286, B32B 1508

Patent

active

043897193

ABSTRACT:
An optically readable information disk which comprises a transparent substrate plate (1) of PVC or a copolymer of vinyl chloride which is provided on one side with a reflecting optical structure (2-5) and on the other side with a radiation-cured lacquer layer (6) which is transparent to the laser light (7) used.

REFERENCES:
patent: 2002620 (1935-05-01), Whitaker
patent: 4158715 (1979-06-01), Smith et al.
patent: 4175145 (1979-11-01), Fetchter
patent: 4188433 (1980-02-01), Dijkstra et al.
patent: 4272574 (1981-06-01), Lippits

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