Coherent light despeckling
US6738105B1 · kind B1 · utility
100Cited by
19References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2000 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Jun 26, 2022 |
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.