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Abstract
Utilizing an athermal chart (the Xf(nu) -(nu) diagram), several different material combinations are identified which are suitable to form MWIR objectives that are athermal over a temperature range of -20 degree(s)C to +60 degree(s)C. Five of these combinations utilize a diffractive surface which effectively acts as a third material. Thin lens solutions are calculated, and the performance of optimized thick lenses is summarized.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Russell M. Hudyma "Athermal MWIR objectives", Proc. SPIE 2540, Current Developments in Optical Design and Engineering V, (15 September 1995); https://doi.org/10.1117/12.219522
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