Hologram synthesis
US4509818A · kind A · utility
6Cited by
7References
4Claims
0Family size
Inventor
Key dates
| Filing date | Dec 17, 1981 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Dec 17, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/303
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to hologram synthesis using a two-dimensional lattice of basic holograms, each basic hologram being formed from a two-dimensional transparency. It provides a synthetic field hologram that has a diffraction efficiency unimpared by the number of basic holograms employed. The hologram may be reconstructed in white light. The method and hologram are useful in making and reconstructing holographic land maps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.