Guidelines For Narcissus Reduction And Modeling

David E.L. Freeman

doi:10.1117/12.944321

9 June 1988 Guidelines For Narcissus Reduction And Modeling

David E.L. Freeman

Proceedings Volume 0892, Simulation and Modeling of Optical Systems; (1988) https://doi.org/10.1117/12.944321
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

In a thermal imaging system each optical refracting surface can reflect internal radiation down onto the detector. Narcissus is the spurious signal generated by the composite effect of these reflections. A function is derived which represents the narcissus effect as an equivalent temperature differences in the scene. The function can be approximated by a simple model based on paraxial ray-tracing. The effectiveness of the model is demonstrated by four examples.

Citation Download Citation

David E.L. Freeman "Guidelines For Narcissus Reduction And Modeling", Proc. SPIE 0892, Simulation and Modeling of Optical Systems, (9 June 1988); https://doi.org/10.1117/12.944321

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