Fluorescent volume light source
US7316497B2 · kind B2 · utility
45Cited by
32References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2005 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Jul 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illumination system, such as might be used for illuminating a projection system, includes at least a first source of incoherent light capable of generating light in a first wavelength range. The system also includes a body containing a fluorescent material that emits light in a second wavelength range, different from the first wavelength range, when illuminated by light in the first wavelength range. The body has an extraction area and at least some of the light at the second wavelength is internally reflected within the body to the extraction area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.