Exact ray-tracing computation of narcissus-equivalent temperature difference in scanning thermal imagers

Juan L. Rayces; Lan Lebich

doi:10.1117/12.130755

10 December 1992 Exact ray-tracing computation of narcissus-equivalent temperature difference in scanning thermal imagers

Juan L. Rayces, Lan Lebich

Author Affiliations +

Proceedings Volume 1752, Current Developments in Optical Design and Optical Engineering II; (1992) https://doi.org/10.1117/12.130755
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The formula for evaluation of narcissus equivalent temperature difference as a function of the scan angle in thermal imaging systems is made more meaningful by grouping the parameters in two factors: one depending on wavelength and temperature and the other, a function of the scan angle, depending on the geometry of the instrument. Exact ray tracing equations are used to evaluate the ratio of radiant energy reaching the detector from warm and cold areas of the instrument.

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Juan L. Rayces and Lan Lebich "Exact ray-tracing computation of narcissus-equivalent temperature difference in scanning thermal imagers", Proc. SPIE 1752, Current Developments in Optical Design and Optical Engineering II, (10 December 1992); https://doi.org/10.1117/12.130755

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