发明授权
US09437788B2 Light emitting diode (LED) component comprising a phosphor with improved excitation properties
有权
发光二极管(LED)组件包括具有改善的激发特性的磷光体
- 专利标题: Light emitting diode (LED) component comprising a phosphor with improved excitation properties
- 专利标题(中): 发光二极管(LED)组件包括具有改善的激发特性的磷光体
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申请号: US14453878申请日: 2014-08-07
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公开(公告)号: US09437788B2公开(公告)日: 2016-09-06
- 发明人: David M. Clatterbuck , Harry A. Seibel , Douglas E. Kinkenon
- 申请人: Cree, Inc.
- 申请人地址: US NC Durham
- 专利权人: Cree, Inc.
- 当前专利权人: Cree, Inc.
- 当前专利权人地址: US NC Durham
- 代理机构: Brinks Gilson & Lione
- 主分类号: H01L33/50
- IPC分类号: H01L33/50 ; H01L33/56 ; C09K11/77
摘要:
A light emitting diode (LED) component comprises an LED having a dominant wavelength in a range of from about 425 nm to less than 460 nm and a phosphor in optical communication with the LED. The phosphor includes a host lattice comprising yttrium aluminum garnet (YAG), and may include an activator comprising Ce and a substitutional dopant comprising Ga incorporated in the host lattice. An emission spectrum of the phosphor has a maximum intensity in a wavelength range of from about 540 nm to about 570 nm, and an excitation spectrum of the phosphor comprises an intensity at 440 nm equivalent to at least about 85% of a maximum intensity of the excitation spectrum.
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