Holographic recording device
US7715074B2 · kind B2 · utility
1Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2008 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Aug 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H1/26
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A holographic recorder can vary the optical distance between an object lens and a relay lens near the object lens. This arrangement allows defocus-multiplexing utilizing state variations in the laser beam when the beam reaches a storage medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.