Reflection type collinear holographic storage system
US8279506B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Feb 5, 2009 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Nov 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/1378
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A reflection type collinear holographic storage system is described, in which an improved overlap between an object beam and a reference beam is achieved. The collinear holographic storage system has a spatial light modulator for imprinting a data page on an object beam, which is located in the beam path of a portion of a reference beam transmitted through a holographic storage medium, whereby the object beam is generated by imprinting a data page onto the transmitted reference beam. The diameter of the reference beam inside the holographic storage medium is matched to the diameter of the object beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.