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16 August 2002 Modeling filament-based sources for system tolerancing
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Abstract
This paper discusses the reverse engineering of filament-based light sources for computerized optical analysis purposes, especially problems 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 simulated sources and optical ray-tracing software. 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. Recommendations for including source tolerances in non-imaging illumination designs conclude.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael A. Stevenson, Michael Frate, Mark S. Kaminski, and R. John Koshel "Modeling filament-based sources for system tolerancing", Proc. SPIE 4775, Modeling and Characterization of Light Sources, (16 August 2002); https://doi.org/10.1117/12.479654
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