Diffractive optical elements with optical power
US11733523B2 · kind B2 · utility
1Cited by
1References
21Claims
0Family size
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Key dates
| Filing date | Sep 25, 2019 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Sep 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head mounted display system can include a camera, at least one waveguide, at least one coupling optical element that is configured such that light is coupled into said waveguide and guided therein, and at least one out-coupling element. The at least one out-coupling element can be configured to couple light that is guided within said waveguide out of said waveguide and direct said light to said camera. The at least one coupling element may comprise a diffractive optical element having optical power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.