Accurate illumination system predictions using measured spatial luminance distributions

William J. Cassarly; David R. Jenkins; Holger Moench

doi:10.1117/12.479655

16 August 2002 Accurate illumination system predictions using measured spatial luminance distributions

William J. Cassarly, David R. Jenkins, Holger Moench

Proceedings Volume 4775, Modeling and Characterization of Light Sources; (2002) https://doi.org/10.1117/12.479655
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Source modeling is one of the key elements that enables software simulations to predict the output of an illumination system. A successful method to model a source is to use measured spatial luminance distributions over a range of view angles to synthesize rays that are then used in a Monte Carlo illumination simulation. The measurements are typically performed using a camera at numerous discrete view angles. Important issues arise when synthesizing rays at angles between the measured angles, especially when the source being measured incorporates optical elements such as a reflector.

Citation Download Citation

William J. Cassarly, David R. Jenkins, and Holger Moench "Accurate illumination system predictions using measured spatial luminance distributions", Proc. SPIE 4775, Modeling and Characterization of Light Sources, (16 August 2002); https://doi.org/10.1117/12.479655

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