Multi-channel folded optical system
US11287635B2 · kind B2 · utility
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5References
20Claims
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Key dates
| Filing date | Jun 27, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Jun 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/55
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical system such as an imaging system, projecting system or combined imaging and projecting system, has complex dielectric coatings and/or reflecting polarizers to separate multiple spectral bands and/or polarizations on one or more of the system's curved mirrors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.