Line illumination apparatus using laser arrays
US8465155B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2012 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | May 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3132
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for forming, onto a linear array light modulator, a line of illumination that extends in a linear direction, the method includes forming a first linear beam array and a second linear beam array, both linear beam arrays comprising a plurality of laser beams; forming a mixed illumination by aligning the first linear beam array and the second linear beam array in the linear direction and directing the first and second linear beam arrays along a propagation path; magnifying the mixed illumination from the propagation path in the linear direction and relaying the magnified mixed illumination toward the linear array light modulator; and focusing the mixed illumination in the cross-array direction that is orthogonal to the linear direction onto the linear array light modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.