Waveguide grating device
US9632226B2 · kind B2 · utility
87Cited by
7References
30Claims
0Family size
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Key dates
| Filing date | Feb 12, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Mar 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide comprises at least two TIR surface and contains a grating. Input TIR light with a first angular range along a first propagation direction undergoes at least two diffractions at the grating. Each diffraction directs light into a unique TIR angular range along a second propagation direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.