Invention Grant
US08192047B2 High color rendering index white LED light system using multi-wavelength pump sources and mixed phosphors
有权
高显色指数白光LED系统采用多波长泵浦源和混合荧光粉
- Patent Title: High color rendering index white LED light system using multi-wavelength pump sources and mixed phosphors
- Patent Title (中): 高显色指数白光LED系统采用多波长泵浦源和混合荧光粉
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Application No.: US12527087Application Date: 2008-02-15
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Publication No.: US08192047B2Publication Date: 2012-06-05
- Inventor: Edward Bailey , Ellen S. Tormey
- Applicant: Edward Bailey , Ellen S. Tormey
- Applicant Address: US FL Satellite Beach
- Assignee: Lighting Science Group Corporation
- Current Assignee: Lighting Science Group Corporation
- Current Assignee Address: US FL Satellite Beach
- Agency: Cantor Colburn LLP
- International Application: PCT/US2008/054073 WO 20080215
- International Announcement: WO2008/101156 WO 20080821
- Main IPC: F21V9/00
- IPC: F21V9/00

Abstract:
The present invention relates to an LED lighting system producing light having improved Color Rendering Index (CRI). The system includes a plurality of LEDs wherein the LEDs have at least a first and second characteristic wavelength, and a mixed phosphor layer overlying at least one of a portion of the plurality of LEDs, the phosphor layer absorbing at least a portion of the LED-emitted light and producing phosphor-emitted light, wherein the phosphors includes a third characteristic wavelength and a fourth characteristic wavelength, wherein the third characteristic wavelength and fourth characteristic wavelength are not the same.
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