Holographic optical system structure and holographic display apparatus using spatial light modulator
US11573529B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Dec 10, 2020 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Mar 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2223/55
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic optical system and a holographic display method may be efficiently applied when using a spatial light modulator (SLM). A holographic display apparatus includes a spatial light modulator (SLM) configured to reproduce a hologram, and an optical system configured to perform Fourier transform with respect to the hologram of the SLM using a pair of first and second lenses, the first and second lenses being confocal. A Fourier plane which is a display reference image plane is positioned in the same plane space as the second lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.