Light emitting device
US8908740B2 · kind B2 · utility
1Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2007 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jun 26, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7789
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A light emitting device, comprises: a light source that emits excitation light; a light guide that propagates the excitation light, and in which the refractive index of the center part (core) of a cross section is higher than the refractive index of the peripheral part (cladding); a wavelength conversion member that absorbs the excitation light propagated by the light guide and converts the wavelength thereof, and releases light of a predetermined wavelength band; and a shielding member that blocks the wavelength of at least part of the excitation light and the light emitted from the wavelength conversion member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.