Optical waveguide devices, methods and systems incorporating same
US10962786B2 · kind B2 · utility
2Cited by
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20Claims
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Key dates
| Filing date | Oct 19, 2019 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Oct 19, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device includes a range of angularly selective reflectors are contained within an optical waveguide substrate and substantially optimized according to their reflector order within the sequence of reflectors. This configuration of reflectors ensures that the required angular information is passed through to the correct reflector within the sequence. The angular response in addition reduces or eliminates formation of secondary images carried to successive reflectors, resulting in undesired artefacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.