Light sources with nanometer-sized VUV radiation-absorbing phosphors
US6982046B2 · kind B2 · utility
468Cited by
8References
24Claims
0Family size
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Key dates
| Filing date | Oct 1, 2003 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Oct 17, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A light source comprises: (a) a source of plasma discharge that emits electromagnetic radiation, a portion of which has wavelengths shorter than about 200 nm; and (b) a phosphor composition that comprises particles, each of the particles comprising at least a first phosphor and at least a second phosphor, the phosphor composition is disposed such that the first phosphor absorbs substantially the portion of EM radiation having wavelengths shorter than about 200 nm, and the first phosphor emits EM radiation having wavelengths longer than about 200 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.