"Modeling Filament-based Sources for System Tolerancing," Proc. SPIE
Updated: Aug 12, 2014
Author(s): Michael Stevenson, Michael Frate, Mark S. Kaminski, R. John Koshel
This paper discusses the reverse engineering of filament-based light sources for optical analysis purposes, and system performance issues raised by source tolerances. The H12 automotive headlamp bulb is used as a case study. Notes on reverse engineering sources consist of: a statement of the challenges involved, our source-modeling methodology, and useful values and procedures pertaining to the simulation of sources and their use in illumiantion analyses. A multi-model approach is outlined and consists of: gathering tolerance information from specification sheets, modeling for source tolerances with eight key models, and output comparisons between nominal and toleranced versions of the H12 source. We conclude with recommendations for considering source tolerances in non-imaging illumination designs.
Copyright 2002, Society of Photo-Optical Instrumentation Engineers (SPIE). This paper was published in the proceedings from the July 2002 SPIE Annual Conference and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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