Thermo-optical data writing process and data medium for...

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

B - Operations, Transporting

41

M

101/43

B41M 5/26 (2006.01) B23K 26/18 (2006.01) B41M 5/28 (2006.01) G11B 7/241 (2006.01)

Patent

CA 1159307

ABSTRACT OF THE DISCLOSURE THERMO-OPTICAL DATA WRITING PROCESS AND DATA MEDIUM FOR PERFORMING THIS PROCESS The invention relates to thermo-optical inscription or writing on a data support comprising an organic intermdiate 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. Figure 4. - 25 -

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