Houghton anastigmatic telescope containing aspheric mirrors that allows corrector position as a free parameter.

Abstract

A family of catadioptric telescopes is investigated, characterzied with two-element, full-aperture afocal corrector lenses and aspherical, focusing, primary mirrors or primary-secondary mirror combination. Third-order aberration and design equation are provided for anastigmatic systems in which corrector position must be a free parameter, forcing the… (More)

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