Novel approaches for light control of high power LEDs

Ladislav Kuna; Franz P. Wenzl; Christian Sommer; Anja Haase; Ernst Zinterl; Joachim R. Krenn; Paul Hartmann; Peter Pachler; Marko Schweighart; Stefan Tasch; Günther Leising

doi:10.1117/12.818082

18 November 2008 Novel approaches for light control of high power LEDs

Ladislav Kuna, Franz P. Wenzl, Christian Sommer, Anja Haase, Ernst Zinterl, Joachim R. Krenn, Paul Hartmann, Peter Pachler, Marko Schweighart, Stefan Tasch, Günther Leising

Author Affiliations +

Proceedings Volume 7138, Photonics, Devices, and Systems IV; 71382B (2008) https://doi.org/10.1117/12.818082
Event: Photonics, Devices, and Systems IV, 2008, Prague, Czech Republic

Abstract

Solid state lighting offers a lot of novel prospects for tomorrows customized lighting solutions. None the less, to compete with and to surpass the performance of the traditional lighting systems, design and development of LED light sources is still facing the necessity of further improvements, in particular with respect to device efficiency and light control. In this contribution we discuss recent developments and novel strategies in order to improve the light extraction efficiency as well as to affect the directionality of the light emitted from high power LEDs. In order to be up to characterize these modifications with high spatial resolution, novel characterization techniques, like the implementation of a confocal principle into the measurement set-up are discussed.

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Ladislav Kuna, Franz P. Wenzl, Christian Sommer, Anja Haase, Ernst Zinterl, Joachim R. Krenn, Paul Hartmann, Peter Pachler, Marko Schweighart, Stefan Tasch, and Günther Leising "Novel approaches for light control of high power LEDs", Proc. SPIE 7138, Photonics, Devices, and Systems IV, 71382B (18 November 2008); https://doi.org/10.1117/12.818082

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