Speckle reduction using beam splitting with birefringent wedge in laser scanning display systems
US8400713B2 · kind B2 · utility
6Cited by
0References
13Claims
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Key dates
| Filing date | Jul 29, 2008 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | May 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3161
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Speckle effect in scanning display systems that employs polarized phase-coherent light is reduced by depolarizing the phase-coherent light using a depolarizer and scanning the depolarized light for producing desired images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.