Etendue maintaining polarization switching system and related methods
US8136948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2011 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | May 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Etendue maintaining polarization switching occurs, according to various embodiments, with a mirror that quickly transitions between two positions. Light having uniform polarization is transmitted to the mirror. Light reflected off of the mirror in one of the two positions has its polarization changed, whereas light reflected off of the mirror in the other of the two positions has its polarization maintained. Thereafter, the polarization-changed light and the polarization-maintained light easily may be recombined in an entendue-maintaining manner. Because the recombined light includes two different polarization states, stereoscopic images may be generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.