DocumentCode
2156157
Title
Emission characteristics of high power LEDs studied by confocal microscopy
Author
Kuna, L. ; Sommer, C. ; Zinterl, E. ; Wenzl, F.P. ; Pachler, P. ; Hartmann, P. ; Tasch, S. ; Leising, G.
Author_Institution
Joanneum Res. Forschungsges.mbH, Weiz
fYear
2007
fDate
17-22 June 2007
Firstpage
1
Lastpage
1
Abstract
We have developed a method that allows us to measure the emission profiles of millimetre-sized high-power light emitting diodes with micron resolution. The optical cross-sections recorded provide detailed information on the light intensity distribution of LEDs within the substrate till a distance of several tens of millimetres, which can be used to map out strategies for an optimization of the power efficiency or the tailoring of the light distribution of high power LEDs.
Keywords
light emitting diodes; optical microscopy; confocal microscopy; emission characteristics; high power LED; light emitting diodes; micron resolution; optical cross-sections; Apertures; Gallium nitride; Lenses; Light emitting diodes; Microscopy; Optical distortion; Optical recording; Photonics; Semiconductor device measurement; Stimulated emission;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location
Munich
Print_ISBN
978-1-4244-0931-0
Electronic_ISBN
978-1-4244-0931-0
Type
conf
DOI
10.1109/CLEOE-IQEC.2007.4386197
Filename
4386197
Link To Document