Physics
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7652e..20b&link_type=abstract
International Optical Design Conference 2010. Edited by Bentley, Julie; Gupta, Anurag; Youngworth, Richard N. Proceedings of t
Physics
Scientific paper
Aspherical surfaces are difficult to manufacture, therefore we consider a possibility of using only spherical surfaces. Two optical designs for 800-mm F/4.5 seeing limited telescope are considered: Ritchey-Chrétien and a two-mirror Catadioptric system. The Ritchey-Chrétien system has a hyperboloidal primary mirror, a planoid aspheric secondary mirror, and a two-lens field corrector, whereas the all-spherical system contains a Mangin mirror and a meniscus corrector as the secondary group and a three-lens corrector. Our analysis of the image quality achieved in the two designs shows that the all-spherical catadioptric system is an acceptable alternative to the Ritchey-Chrétien design.
Baharmi Mehdi
Dainty Christopher
Goncharov Alexander V.
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