Three-mirror telescope objective without screening

Грамматин А.П., Сычева А.А. Трехзеркальный объектив телескопа без экранирования // Оптический журнал. 2010. Т. 77. № 1. С. 24–27.

Grammatin A.P., Sycheva A.A. Three-mirror telescope objective without screening [in Russian] // Opticheskii Zhurnal. 2010. V. 77. № 1. P. 24–27.

A. P. Grammatin and A. A. Sycheva, "Three-mirror telescope objective without screening," Journal of Optical Technology. 77(1), 18-20 (2011). https://doi.org/10.1364/JOT.77.000018

The results of an investigation of the characteristics of three-mirror optical system without screening, patented by the S. I. Vavilov State Optics Institute, are presented. A method for calculating the system making it possible to calculate structural elements with prescribed focal length, rear segment, and f-number is presented.