Optical eyepiece using single-sided patterning of grating couplers
US11022790B2 · kind B2 · utility
1Cited by
3References
11Claims
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Key dates
| Filing date | Jun 11, 2020 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Jun 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An eyepiece includes a substrate and an in-coupling grating patterned on a single side of the substrate. A first grating coupler is patterned on the single side of the substrate and has a first grating pattern. The first grating coupler is optically coupled to the in-coupling grating. A second grating coupler is patterned on the single side of the substrate adjacent to the first grating coupler. The second grating coupler has a second grating pattern different from the first grating pattern. The second grating coupler is optically coupled to the in-coupling grating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.