Projector
US7575326B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2007 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Feb 7, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3152
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector having a first lens array with a plurality of first lenses in a plane substantially orthogonal to an optical axis of the light beam from a light source that divides the light beam into a plurality of partial light beams, a second lens array having a plurality of second lenses corresponding to the plurality of first lenses, and a polarization converter that is disposed on a light beam emitting-side of the first lens array. A focal position in a first direction of the first lens is set in the vicinity of the second lens array in the optical direction of the light beam irradiated from the first lens. A focal position in the second direction of the first lens is set in the vicinity of the polarization converter in the optical direction of the light beam irradiated from the first lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.