Digital light path length modulation
US10809546B2 · kind B2 · utility
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22References
22Claims
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Key dates
| Filing date | Aug 12, 2016 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Dec 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/117
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system to adjust light path length utilizing a digital light path length modulator. The digital light path length modulator includes an optical path length extender (OPLE) with a plurality of polarization sensitive reflective elements and a polarization modulator. The OPLE has two light paths having different path lengths, so a light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.