Abstract
The theory of aplanatic two-mirror telescopes developed by Karl Schwarzschild in 1905 is shown to lead to a unified description of both prefocal and postfocal systems. The class of surfaces in the ZEMAX optical program has been properly extended to ascertain the image quality in exact Schwarzschild aplanats. A comparison of Schwarzschild aplanats with approximate Ritchey-Chrétien and Gregory-Maksutov aplanatic telescopes reveals a noticeable advantage of the former at the system’s fast focal ratio.
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Translated from Pis’ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Zhurnal, Vol. 31, No. 2, 2005, pp. 143–153.
Original Russian Text Copyright © 2005 by Terebizh.
An erratum to this article is available at http://dx.doi.org/10.1134/1.1922535.
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Terebizh, V.Y. Two-mirror Schwarzschild aplanats: Basic relations. Astron. Lett. 31, 129–139 (2005). https://doi.org/10.1134/1.1862353
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DOI: https://doi.org/10.1134/1.1862353