Invention Grant
- Patent Title: High efficiency lighting device
- Patent Title (中): 高效照明装置
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Application No.: US12181916Application Date: 2008-07-29
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Publication No.: US07947991B2Publication Date: 2011-05-24
- Inventor: Wei-Kai Wang , Su-Hui Lin , Wen-Chung Shih
- Applicant: Wei-Kai Wang , Su-Hui Lin , Wen-Chung Shih
- Applicant Address: TW Taichung
- Assignee: Huga Optotech Inc.
- Current Assignee: Huga Optotech Inc.
- Current Assignee Address: TW Taichung
- Agency: Snell & Wilmer L.L.P.
- Main IPC: H01L27/15
- IPC: H01L27/15

Abstract:
A high efficiency lighting device comprising a light emitting diode structure, an eutectic layer and a distributed-Bragg reflecting layer (DBR) therebetween is disclosed. The distributed-Bragg reflecting layer is attached to said light emitting diode structure by vapor deposition and comprises a plurality of high refraction layers, a plurality of low refraction layers and a micro-contact layer array. The high refraction layers and said low refraction layers are arranged in an alternating manner, so as to form a stacked thin film having an alternate high/low refraction pattern. The micro-contact layers are in said stacked thin film and extend vertically through the stacked thin film, therefore connecting said light emitting diode structure and said eutectic layer.
Public/Granted literature
- US20100025704A1 HIGH EFFICIENCY LIGHTING DEVICE Public/Granted day:2010-02-04
Information query
IPC分类: