Thermo-optical data writing process and data medium for performi

Details Thermo-optical data writing process and data medium for performi Thermo-optical data writing process and data medium for performi

1984-08-27

1986-03-18

Fears, Terrell W.

Static information storage and retrieval

Information masking

Thermoplastic

369109, 369275, 430348, G11C 1146

Patent

active

045772916

ABSTRACT:
The invention relates to thermo-optical inscription or writing on a data support comprising an organic intermediate layer (2) covered by a metal layer (3).
The invention relates to a writing process consisting of creating in the metal layer 3 a plastic deformation as a result of the gaseous pressure exerted due to the local thermal degradation of intermediate layer 2. Inscription produces a bulge-like impression without perforating the metal layer (3).
The invention more particularly applies to the thermo-optical inscription and storage of data on an optically readable support by phase or amplitude contrast.

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Katou, abstract of Japan Patent 54-9002, 10/6/79.
Anderson, "Materials for Thermoplastic Recording by Heat Alone", IBM Tech. Disc. Bul., vol. 6, No. 12, 5/64, p. 3.
Tolle et al, "Fast Imaging in Pbl.sub.2 Films", Applied Physics Letters, vol. 26, No. 6, 3/15/75, pp. 349-351.
Wrobel, "Medium, Process and System for Recording Information", European Patent Application, No. 3,262, 8/8/79.

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