Method of conception and use of calculation tools for optimization of visible and IR systems to increase efficiency and reduce ghost image and scattering effects

Gilles Mathieu; Terry D. Ferguson

doi:10.1117/12.279212

3 October 1997 Method of conception and use of calculation tools for optimization of visible and IR systems to increase efficiency and reduce ghost image and scattering effects

Gilles Mathieu, Terry D. Ferguson

Author Affiliations +

Proceedings Volume 3139, Nonimaging Optics: Maximum Efficiency Light Transfer IV; (1997) https://doi.org/10.1117/12.279212
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

For the last ten years, the company OPTIS has worked on non imaging system design software. The software is needed to simulate a complete photometric path that could take into account all the major needs of optronic system designers. Different ways of simulation the system photometry will be described, showing the improvement which has come through experience. The analysis and simulation include different parts of an optronic system. The main input data includes: characterization of sources in the near and far fields, thermal emission information, geometrical data, and the surface and volume properties of materials. The emission and propagation of radiation through the system with the material interactions (refraction, reflection and scatter) are simulated for coherent and incoherent light. The simulation uses a Monte Carlo method which has been improved for use in stray light analysis. The main research emphasis has been on developing and testing algorithms to reduce the calculation time without sacrificing precision. This is a fundamental point we describe for IR countermeasures applications and for cases of very low levels of signal flux.

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Gilles Mathieu and Terry D. Ferguson "Method of conception and use of calculation tools for optimization of visible and IR systems to increase efficiency and reduce ghost image and scattering effects", Proc. SPIE 3139, Nonimaging Optics: Maximum Efficiency Light Transfer IV, (3 October 1997); https://doi.org/10.1117/12.279212

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