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Proceedings Paper

White LED
Author(s): Georg Bogner; Alexandra Debray; Guenther Heidel; Klaus Hoehn; Ulrich Mueller; Peter Schlotter
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Paper Abstract

Since several years light emitting diodes are in use to generate white light. Pixels with green, red and blue LED's are arranged to get any coordinate in the CIE--diagram with matched current for each diode. For instance Siemens Opto Semiconductor now OSRAM Opto Semiconductor offers multi chip LED's (LHGB T676) especially for the application above. A far better solution for producing white light represents luminescence conversion. The emitted light of blue diodes is used as a primary source for exciting organic or inorganic fluorescent. By conversion, `Stokes Shift', red, green, yellow and mixed colored light can be generated.

Paper Details

Date Published: 14 April 1999
PDF: 8 pages
Proc. SPIE 3621, Light-Emitting Diodes: Research, Manufacturing, and Applications III, (14 April 1999); doi: 10.1117/12.344473
Show Author Affiliations
Georg Bogner, OSRAM Opto Semiconductor GmbH (Germany)
Alexandra Debray, OSRAM Opto Semiconductor GmbH (Germany)
Guenther Heidel, OSRAM Opto Semiconductor GmbH (Germany)
Klaus Hoehn, Siemens AG (Germany)
Ulrich Mueller, OSRAM GmbH (Germany)
Peter Schlotter, Fraunhofer-Institut fuer Angewandte Festkoerperphysik (Germany)

Published in SPIE Proceedings Vol. 3621:
Light-Emitting Diodes: Research, Manufacturing, and Applications III
E. Fred Schubert; Ian T. Ferguson; H. Walter Yao, Editor(s)

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