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A previous paper (1) described spheric and aspheric thermal infrared optical systems that were designed for three hypothetical applications. This paper is a sequel in that it describes four designs - two spherical, two aspheric - formulated for a specific application. The application chosen is an afocal telescope of X 12.5 magnification having an exit pupil of nominal diameter and axial clearance of 11 and 24 millimetres respectively: the field of view of the telescope in scanner space is 70 degrees. The four designs are examined with respect to their performance and narcissus characteristics and also their size, complexity and ease of manufacture.
Philip J. Rogers andDavid G. Norrie
"Theoretical And Practical Advantages Of Using Aspheric Surfaces In The Thermal Band", Proc. SPIE 0235, Aspheric Optics: Design, Manufacture, Testing, (13 May 1981); https://doi.org/10.1117/12.958954
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Philip J. Rogers, David G. Norrie, "Theoretical And Practical Advantages Of Using Aspheric Surfaces In The Thermal Band," Proc. SPIE 0235, Aspheric Optics: Design, Manufacture, Testing, (13 May 1981); https://doi.org/10.1117/12.958954