Method and apparatus for isolating data storage regions in a thin holographic storage media
US5477347A · kind A · utility
27Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1993 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | Jul 14, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2270/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A holographic storage media for storing digital data in the form of an interference grating is provided which includes a substrate (48) over which a perforated opaque structure (50) is disposed. The opaque structure (50) has wells (52) disposed therein. In the wells, a photopolymer material (54) is disposed to form data storage regions (54). This is covered by a capping layer (56). The wells (52) are chemically and/or optically isolated from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.