Method and apparatus for illuminating a spatial light modulator with light from multiple laser diode arrays
US6853490B2 · kind B2 · utility
20Cited by
18References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Oct 29, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for illuminating a spatial light modulator combines radiation from two or more multiple-emitter laser diode arrays. Brightness is conserved. The apparatus includes collecting optics which includes an array of microlenses. The microlenses steer beams of radiation which issue from individual emitters so that the beams overlap at a target plane to produce a desired beam profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.