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Proceedings Paper

Modeling filament-based sources for system tolerancing
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Paper 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.

Paper Details

Date Published: 16 August 2002
PDF: 11 pages
Proc. SPIE 4775, Modeling and Characterization of Light Sources, (16 August 2002); doi: 10.1117/12.479654
Show Author Affiliations
Michael A. Stevenson, Breault Research Organization, Inc. (United States)
Michael Frate, Breault Research Organization, Inc. (United States)
Mark S. Kaminski, Breault Research Organization, Inc. (United States)
R. John Koshel, Breault Research Organization, Inc. (United States)


Published in SPIE Proceedings Vol. 4775:
Modeling and Characterization of Light Sources
C. Benjamin Wooley, Editor(s)

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