Invention Grant
- Patent Title: Coated LED with improved efficiency
- Patent Title (中): 涂层LED效率提高
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Application No.: US10525697Application Date: 2003-08-29
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Publication No.: US07479662B2Publication Date: 2009-01-20
- Inventor: Thomas F. Soules , Stanton Weaver, Jr. , Chen-Lun Hsing Chen , Mathew Sommers , Boris Kolodin , Anan Achyut Setlur , Thomas Elliot Stecher
- Applicant: Thomas F. Soules , Stanton Weaver, Jr. , Chen-Lun Hsing Chen , Mathew Sommers , Boris Kolodin , Anan Achyut Setlur , Thomas Elliot Stecher
- Applicant Address: US OH Valley View
- Assignee: Lumination LLC
- Current Assignee: Lumination LLC
- Current Assignee Address: US OH Valley View
- Agency: Fay Sharpe LLP
- International Application: PCT/US03/27363 WO 20030829
- International Announcement: WO2004/021461 WO 20040311
- Main IPC: H01L29/22
- IPC: H01L29/22 ; H01L29/24 ; H01L33/00 ; H01L21/00 ; H01J63/04

Abstract:
An LED device including an LED chip and a lens positioned apart from the chip and coated with a uniform thickness layer of fluorescent phosphor for converting at least some of the radiation emitted by the chip into visible light. Positioning the phosphor layer away from the LED improves the efficiency of the device and produces more consistent color rendition. The surface area of the lens is preferably at least ten times the surface area of the LED chip. For increased efficiency, the reflector and submount can also be coated with phosphor to further reduce internal absorption.
Public/Granted literature
- US20070120135A1 Coated led with improved efficiency Public/Granted day:2007-05-31
Information query
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