Multi-passage cavity of an optical device for spatial manipulation of luminous radiation
US11579437B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Feb 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-passage cavity made up of the assembly of a planar mounting and first and second reflective optical elements each having a main face arranged opposite one another, the main face of at least one of the optical elements being microstructured to modify the phase of incident luminous radiation that is reflected several times on each of the optical elements to form transformed radiation, the multi-passage cavity includes precisely three assembly interfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.