Holographic recording medium
US7133170B1 · kind B1 · utility
5Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2005 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Dec 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2270/54
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic recording medium according to the present invention includes a holographic material layer in which information is to be recorded by irradiating the same region with information light corresponding to the information to be recorded and reference light to read the recorded information. The holographic material layer is divided into a plurality of recording zones by a plurality of light shielding walls. The light shielding wall is formed of a material which does not transmit bleaching light to be applied to the recording zone in which a recording process has been performed and the recorded information is to be fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.