Light emitting diode lamp and light emitting device
US8148887B2 · kind B2 · utility
19Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2008 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | May 9, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A bullet type light emitting diode lamp or a chip-type light emitting diode lamp includes a semiconductor light emitting element, and a plurality of fluorescent materials that absorb part or whole of light emitted from the semiconductor light emitting element, and emit fluorescence at a wavelength different from that of the absorbed light. The fluorescent materials include a phosphor of a CaAlSiN3 crystalline phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.