Invention Grant
- Patent Title: Light emitting devices with improved light extraction efficiency
- Patent Title (中): 具有提高光提取效率的发光器件
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Application No.: US10633054Application Date: 2003-07-31
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Publication No.: US07009213B2Publication Date: 2006-03-07
- Inventor: Michael D. Camras , Gerard Harbers , William R. Imler , Matthijs H. Keuper , Paul S. Martin , Douglas W. Pocius , Frank M. Steranka , Helena Ticha , Ladislav Tichy , R. Scott West
- Applicant: Michael D. Camras , Gerard Harbers , William R. Imler , Matthijs H. Keuper , Paul S. Martin , Douglas W. Pocius , Frank M. Steranka , Helena Ticha , Ladislav Tichy , R. Scott West
- Applicant Address: US CA San Jose
- Assignee: Lumileds Lighting U.S., LLC
- Current Assignee: Lumileds Lighting U.S., LLC
- Current Assignee Address: US CA San Jose
- Agency: Patent Law Group LLP
- Main IPC: H01L33/00
- IPC: H01L33/00

Abstract:
A device includes a light emitting semiconductor device bonded to an optical element. In some embodiments, the optical element may be elongated or shaped to direct a portion of light emitted by the active region in a direction substantially perpendicular to a central axis of the semiconductor light emitting device and the optical element. In some embodiments, the semiconductor light emitting device and optical element are positioned in a reflector or adjacent to a light guide. The optical element may be bonded to the first semiconductor light emitting device by a bond at an interface disposed between the optical element and the semiconductor light emitting device. In some embodiments, the bond is substantially free of organic-based adhesives.
Public/Granted literature
- US20050023545A1 Light emitting devices with improved light extraction efficiency Public/Granted day:2005-02-03
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