G - Physics – 11 – B
Patent
G - Physics
11
B
314/3
G11B 7/00 (2006.01) B41M 5/26 (2006.01) G11B 7/24 (2006.01) G11B 7/241 (2006.01) G11B 7/243 (2006.01)
Patent
CA 1190276
A THERMO-OPTICAL METHOD FOR WRITING INFORMATION AND AN INFORMATION MEDIUM FOR THE APPLICATION OF SAID METHOD Abstract of the Disclosure Thermo-optical writing of information used for such applications as archival storage is performed on a medium in which a ductile metal film layer is stretched beyond the elastic limit under the pressure exerted by a contiguous layer of thermally deforming organic substance and is partially permeable to radiation produced by a light beam. An optical cavity formed between the ductile layer and a reflecting metal film layer is tuned so that the reflection factor of the information medium at the light-radiation wavelength increases with the deformation induced by the light beam. -1-
383356
Goudreau Gage Dubuc
Thomson-Csf
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