Solid state illumination system containing a light emitting diode, a light scattering material and a luminescent material
US6791259B1 · kind B1 · utility
376Cited by
14References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2000 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jul 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lamp containing a radiation source, a luminescent material and a radiation scattering material located between the radiation source and the luminescent material is provided. The lamp may be a white emitting lamp. The radiation source may be a blue emitting LED. The luminescent material may be a yellow emitting phosphor or dye. The radiation scattering material may be ceramic particles, such as TiO2 particles, in a carrier medium, such as glass, epoxy or silicone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.