Waveguide grating device
US9823423B2 · kind B2 · utility
67Cited by
7References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 24, 2017 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2037 |
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.