Deep red phosphor for general illumination applications
US7026755B2 · kind B2 · utility
73Cited by
32References
20Claims
0Family size
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Key dates
| Filing date | Aug 7, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Mar 3, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8515
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A light emitting device including a UV semiconductor light source and a phosphor blend including a blue emitting phosphor, a green emitting phosphor and a deep red emitting phosphor comprising (Ba,Sr,Ca)3MgxSi2O8:Eu2+, Mn2+, wherein 1≦x≦2. Also disclosed is a phosphor blend comprising a blue emitting phosphor, a phosphor, a green emitting phosphor and a red emitting phosphor comprising (Ba,Sr,Ca)3MgxSi2O8:Eu2, Mn2+.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.