Waveguide with multilayer waveplate
US11092808B1 · kind B1 · utility
3Cited by
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20Claims
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Key dates
| Filing date | Mar 20, 2018 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical structure includes an input grating and a multilayer waveplate. The input grating is configured to incouple a first spectrum of received image light into a waveguide. The multilayer waveplate is configured to reflect the first spectrum of the image light incoupled by the input grating in the second polarization orientation and reflect a second spectrum of the image light incoupled by the input grating by diffraction in the first polarization orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.