发明名称 |
Phosphor, Method of Producing the Same, and Light Emitting Apparatus |
摘要 |
There are provided a phosphor which is a divalent europium-activated oxynitride phosphor substantially represented by General formula (A): EuaSibAlcOdNe, a divalent europium-activated oxynitride phosphor substantially represented by General formula (B): MIfEugSihAlkOmNn or a divalent europium-activated nitride phosphor substantially represented by General formula (C): (MII1-pEup)MIIISiN3, having a reflectance of light emission in a longer wavelength region of visible light than a peak wavelength of 95% or larger, and a method of producing such phosphor; a nitride phosphor and an oxynitride phosphor which emit light efficiently and stably by the light having a wavelength ranging from 430 to 480 nm from a semiconductor light emitting device by means of a light emitting apparatus using such phosphor, and a producing method of such phosphor; and a light emitting apparatus having stable characteristics and realizing high efficiency. |
申请公布号 |
US2017081586(A1) |
申请公布日期 |
2017.03.23 |
申请号 |
US201615371747 |
申请日期 |
2016.12.07 |
申请人 |
GE Phosphors Technology, LLC |
发明人 |
MASUDA Masatsugu;TERASHIMA Kenji |
分类号 |
C09K11/77;H01L33/32;H01L33/50;C09K11/08 |
主分类号 |
C09K11/77 |
代理机构 |
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代理人 |
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主权项 |
1. A light converter comprising:
a green emitting phosphor having a β-SiAlON crystal structure, and a reflectance of 95% or larger in a region of visible light having wavelengths longer than a peak wave length of the green emitting phosphor, the green emitting phosphor comprising Eu, Si, Al, O, and N. |
地址 |
Niskayuna NY US |