Hologram recording method and hologram recording apparatus
US7535608B2 · kind B2 · utility
3Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2006 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Sep 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0065
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hologram recording method includes eliminating a DC component from a Fourier transformation image of a signal light for expressing binary digital data as a brightness image, and irradiating an optical recording medium simultaneously with the signal light from which the DC component has been eliminated and a reference light to record an image edge portion of the signal light onto the optical recording medium as a hologram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.