Thermo-optical data writing process and data medium for performing this process
US4404656A · kind A · utility
50Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1981 |
| Grant date | Sep 13, 1983 |
| Priority date | — |
| Expiry date | Jan 21, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24314
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thermo-optic data writing process and record in which focussed radiation is directed onto a data medium made up of a substrate, an organic layer directly deposited thereon with the interface therebetween being non-reflective and, on the organic layer, a metal layer of an alloy of metals selected to provide desired adhesion, range of deformation and shock resistance to rupture, for example, incorporating gold, silver or copper. Gas evolution by local degradation of the organic layer produces a bubble in the metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.