Stray light computations: Has nothing changed since the 1970s?

Alan W. Greynolds

doi:10.1117/12.730258

25 October 2007 Stray light computations: Has nothing changed since the 1970s?

Alan W. Greynolds

Proceedings Volume 6675, Optical Modeling and Performance Predictions III; 66750B (2007) https://doi.org/10.1117/12.730258
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Differing only in implementation details, all current commercially available codes for doing stray light computations are based on the same modified (with ray splitting and importance sampling) Monte-Carlo, non-sequential, forward, ray tracing method pioneered by the GUERAP-III program in the 1970's. The advantages and disadvantages of this method are first presented. Then an alternative technique that is deterministic and exploits the use of bi-directional non-sequential beamlet traces is described. Ironically, this "new" technique is just an extension from two to three dimensions of thesis research done by the author in the late 1970's.

Citation Download Citation

Alan W. Greynolds "Stray light computations: Has nothing changed since the 1970s?", Proc. SPIE 6675, Optical Modeling and Performance Predictions III, 66750B (25 October 2007); https://doi.org/10.1117/12.730258

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