Apparatus for manufacturing holographic optical element, and apparatus for reconstructing holograms
US10564604B2 · kind B2 · utility
1Cited by
6References
4Claims
0Family size
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Key dates
| Filing date | Nov 8, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2223/23
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for manufacturing a hologram includes a holographic optical element on which a first interference pattern of a first signal beam and a first reference beam is recorded and a second interference pattern of a second signal beam modulated by a Fourier lens and a second reference beam is recorded. Also, an apparatus for reconstructing a hologram by using the holographic optical element is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.