Irreversible optical recording medium
US7181753B2 · kind B2 · utility
1Cited by
5References
35Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 29, 2001 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Dec 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24316
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The medium comprises a bilayer stack constituted of an inorganic layer (30) and a semi-reflecting layer (32). The inorganic layer (30) can be deformed under the effect of light radiation (34) passed through the semi-reflecting layer, which lowers the reflection coefficient of the stack.Application to irreversible recording of information data, for example on discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.