Light emitting device with blue light LED and phosphor components
US7682848B2 · kind B2 · utility
32Cited by
50References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2008 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Feb 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.