Invention Grant
- Patent Title: Enhanced emission from pc-LEDs using IF filters
- Patent Title (中): 使用IF滤波器增强pc-LEDs的发射
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Application No.: US11844713Application Date: 2007-08-24
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Publication No.: US07800287B2Publication Date: 2010-09-21
- Inventor: Yi Zheng , Bruce Bateman , Matthew A. Stough , Madis Raukas
- Applicant: Yi Zheng , Bruce Bateman , Matthew A. Stough , Madis Raukas
- Applicant Address: US MA Danvers
- Assignee: Osram Sylvania Inc.
- Current Assignee: Osram Sylvania Inc.
- Current Assignee Address: US MA Danvers
- Agent Robert F. Clark
- Main IPC: H01J5/16
- IPC: H01J5/16 ; H01J63/04 ; F21V9/00
Abstract:
White-light efficiency from a light emitting diode is enhanced by recycling inwardly penetrating light outwardly by application of a multi-layer, thin film filter between the LED die and the phosphor layer. This procedure increases the package extraction efficiency.
Public/Granted literature
- US20080054803A1 Enhanced Emission from pc-LEDs Using IF Filters Public/Granted day:2008-03-06
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