Etendue efficient combination of multiple light sources
US7710669B2 · kind B2 · utility
8Cited by
19References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 9, 2006 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Feb 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/149
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-colored illumination system including a beam combiner. The beam combiner includes two triangular prisms and a filter for transmitting a first light and reflecting a second light, each light having a different wavelength. The beam combiner combines the transmitted first light and the reflected light to provide a combined beam. The six surfaces of each of the triangular prism of the beam combiner are polished, thereby combining the lights without increasing etendue of the multi-colored illumination system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.