TIR optics for non-rotationally symmetric illumination design

André Domhardt; Simon Weingaertner; Udo Rohlfing; Uli Lemmer

doi:10.1117/12.797664

23 September 2008 TIR optics for non-rotationally symmetric illumination design

André Domhardt, Simon Weingaertner, Udo Rohlfing, Uli Lemmer

Proceedings Volume 7103, Illumination Optics; 710304 (2008) https://doi.org/10.1117/12.797664
Event: Optical Systems Design, 2008, Glasgow, Scotland, United Kingdom

Abstract

High-Power-LEDs have reached a development stage that affords their reasonable application to general illumination. Nonimaging total internal reflection optics (TIR optics) that generate non-rotationally symmetric light distributions are proper components to preserve the advantages associated with this type of light source. Thus, high efficiency has to be reconciled, e.g., with the use of freeform surfaces. This contribution investigates the development of TIR optics for LED-based illumination applications. First, we consider rotationally symmetric TIR optics in order to illustrate their functional principle and demonstrate some special design criteria. Second, we apply them to non-rotationally cases using the tailoring technique. Finally, we illustrate various aspects of the design process with selected examples.

Citation Download Citation

André Domhardt, Simon Weingaertner, Udo Rohlfing, and Uli Lemmer "TIR optics for non-rotationally symmetric illumination design", Proc. SPIE 7103, Illumination Optics, 710304 (23 September 2008); https://doi.org/10.1117/12.797664

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