Three-Mirror Anastigmat Telescope with an Unvignetted Flat Focal Plane | Zendy

Kyoji Nariai | Zendy; Masanori Iye | Zendy

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Three-Mirror Anastigmat Telescope with an Unvignetted Flat Focal Plane

Author(s) -

Kyoji Nariai,

Masanori Iye

Publication year - 2005

Publication title -

publications of the astronomical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.99

H-Index - 110

eISSN - 2053-051X

pISSN - 0004-6264

DOI - 10.1093/pasj/57.2.391

Subject(s) - vignetting , physics , optics , magnification , reflecting telescope , cardinal point , telescope , curved mirror , field of view , plane mirror , aperture (computer memory) , cassegrain reflector , secondary mirror , entrance pupil , focal length , schmidt camera , lens (geology) , primary mirror , pupil , acoustics

A new optical design concept of telescopes to provide an aberration-free,wide field, unvignetted flat focal plane is described. The system employs threeaspheric mirrors to remove aberrations, and provides a semi-circular field ofview with minimum vignetting. The third mirror reimages the intermediate imagemade by the first two-mirror system with a magnification factor on the order ofunity. The present system contrasts with the Korsch system where themagnification factor of the third mirror is usually much larger than unity. Twoseparate optical trains can be deployed to cover the entire circular field, ifnecessary.Comment: 13 pages, 6 figures, 2 table

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