Illumination system
US7559671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2007 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Mar 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An illumination system including a beam splitter, a first lamp, a second lamp, a first reflector, a second reflector, and a light uniforming element is provided. The first and the second lamp emit a first beam and a second beam to the beam splitter, respectively. A part of the first beam reflected by the beam splitter and a part of the second beam passing through the beam splitter constitute a third beam, and the other part of the first beam passing through the beam splitter and the other part of the second beam reflected by the beam splitter constitute a fourth beam. The first reflector and the second reflector reflect the third beam and the fourth beam, respectively. The light uniforming element is disposed on transmission paths of the reflected third beam and the reflected fourth beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.