Device for reversible optical data storage
US4886718A · kind A · utility
15Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1987 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Feb 3, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10582
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device for reversible optical information storage, which comprises polymeric liquid crystals as a storage medium. The device contains a film comprised of a liquid crystal main chain polymer, as a storage medium, and is constructed so that in the storage operation the storage medium is locally reoriented, and the information is stored by means of a local variation of the molecular ordering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.