Conic constant trade-off study in Cassegrain-type telescopes with a field corrector

Jeong-Yeol Han; Jose Sasian; Jesús González

doi:10.1117/12.865608

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25 August 2010 Conic constant trade-off study in Cassegrain-type telescopes with a field corrector

Jeong-Yeol Han, Jose Sasian, Jesús González

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Proceedings Volume 7787, Novel Optical Systems Design and Optimization XIII; 778702 (2010) https://doi.org/10.1117/12.865608
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

The fabrication and optical performance of a Cassegrain type telescope that employs a field corrector depends on the conic constant of the primary mirror. The design of the field corrector calls for different choices on mirror asphericity which imply a departure from the nominal Cassegrain or Ritchey-Chrétien solutions. This departure may not be acceptable given that the telescope would not operate properly without the field corrector. In this paper we present a study of the variation of mirror conic constant and field corrector choice of some existing telescopes. We also discuss some trade-offs in the design of a telescope with a field corrector.

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Jeong-Yeol Han, Jose Sasian, and Jesús González "Conic constant trade-off study in Cassegrain-type telescopes with a field corrector", Proc. SPIE 7787, Novel Optical Systems Design and Optimization XIII, 778702 (25 August 2010); https://doi.org/10.1117/12.865608

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