Light-emitting unit having specific fluorescent material
USRE41234E1 · kind E1 · reissue
2Cited by
6References
48Claims
0Family size
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Key dates
| Filing date | Apr 5, 2006 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Apr 5, 2026 |
Classification
- Technology area (CPC —)General
Abstract
A light-emitting device with an emission wavelength range of from 360 nm to 550 nm and a fluorescent material made of Ca—Al—Si—O—N oxynitride activated with Eu2+ are used so that a part of light emitted from the light-emitting device is emitted while the wavelength of the part of light is converted by the fluorescent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.