发明授权
US08062549B2 Phosphor and manufacturing method therefore, and light emission device using the phosphor
有权
因此,荧光体和制造方法,以及使用荧光体的发光装置
- 专利标题: Phosphor and manufacturing method therefore, and light emission device using the phosphor
- 专利标题(中): 因此,荧光体和制造方法,以及使用荧光体的发光装置
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申请号: US11992647申请日: 2006-07-14
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公开(公告)号: US08062549B2公开(公告)日: 2011-11-22
- 发明人: Akira Nagatomi , Kenji Sakane , Tomoya Yamada
- 申请人: Akira Nagatomi , Kenji Sakane , Tomoya Yamada
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Chemical Corporation
- 当前专利权人: Mitsubishi Chemical Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2005-280859 20050927; JP2006-127946 20060501
- 国际申请: PCT/JP2006/314109 WO 20060714
- 国际公布: WO2007/037059 WO 20070405
- 主分类号: H01L33/00
- IPC分类号: H01L33/00 ; C09K11/62 ; C09K11/64 ; C09K11/66 ; C09K11/78 ; C09K11/79
摘要:
To provide a phosphor for manufacturing an one chip type LED illumination, etc, by combining a near ultraviolet/ultraviolet LED and a blue LED, and having an excellent emission efficiency including luminance. The phosphor is given as a general composition formula expressed by MmAaBbOoNn:Z, (where element M is one or more kinds of elements having bivalent valency, element A is one or more kinds of elements having tervalent valency, element B is one or more kinds of elements having tetravalent valency, O is oxygen, N is nitrogen, and element Z is one or more kinds of elements acting as an activator.), satisfying a=(1+x)×m, b=(4−x)×m, o=x×m, n=(7−x)×m, 0≦x≦1, wherein when excited by light in a wavelength range from 300 nm to 500 nm, the phosphor has an emission spectrum with a peak wavelength in a range from 500 nm to 620 nm.
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