Speckle reduction in laser illuminated projection displays having a one-dimensional spatial light modulator
US7413311B2 · kind B2 · utility
37Cited by
57References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2005 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Apr 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection display including a one-dimensional light modulator includes an optical arrangement for projecting light from a laser onto the modulator in the form of a line of light. Light from the laser is divided to create in effect a two-dimensional array of mutually incoherent light sources. Light from one axis of the array is projected onto the modulator to form the length of the line of light and light from the other axis of the array is projected onto the modulator to form the width of the line of light. Division of the light is accomplished without the use of any moving component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.