Method and apparatus for an optical path length extender
US10401639B2 · kind B2 · utility
5Cited by
15References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2016 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Feb 4, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2213/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system to adjust light path length using a digital light path length modulator. The digital light path modulator includes an optical path length extender (OPLE) and a polarization modulator. The OPLE has two light paths having different path lengths, so light with a first polarization is directed through a first light path, and the light with a second polarization is directed through a second light path through the OPLE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.