Coherent light despeckling
US7215383B2 · kind B2 · utility
5Cited by
30References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2004 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Nov 27, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/7416
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device or a receiver device for use with coherent light. A controller applies phase shift values to a multi-region phase array at a frequency sufficiently higher than the flicker fusion rate of the human eye or other intended receiver in order to remove the perception of speckling artifacts which would otherwise appear due to the coherency of the light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.