Etendue-squeezing illumination optics
US7347599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2005 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Oct 3, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0037
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In some embodiments, an apparatus for use generating illumination is provided that comprises a reflective base, a first light source positioned proximate the reflective base, and a reimaging reflector positioned partially about the first light source, where a percentage of light emitted from the first light source is reflected from the reimaging reflector to the reflective base adjacent the first light source establishing a first real image. The reimaging reflector can further comprise a first sector of a first ellipsoid and a second sector of a second ellipsoid, where the first and second sectors establish the first and a second real image. Further embodiments provide a lens that includes a reimaging reflector that receives light and reflects the light establishing a first real image. The reimaging reflector can further comprise a plurality of sectors that reflect light to establish first and second real images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.