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Proceedings Paper

Design of three-mirror telescopes via a differential equation method
Author(s): Shao-Hua Chao; Neal C. Evans; David L. Shealy; R. Barry Johnson
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Paper Abstract

A differential equation method is applied to the design of a three-mirror telescope. The resulting system is mostly free of spherical aberration, coma and astigmatism. From caustic theory and a generalization of the Coddington Equations, the Abbe sine condition and the constant optical path length condition, three coupled differential equations, one for each reflecting surface, are generated. A system which satisfies these conditions will have a high resolution over a wide field of view. Analysis of this application is presented as a comparison to a similar three-mirror telescope system produced by conventional optimization techniques.

Paper Details

Date Published: 1 November 1996
PDF: 11 pages
Proc. SPIE 2863, Current Developments in Optical Design and Engineering VI, (1 November 1996); doi: 10.1117/12.256233
Show Author Affiliations
Shao-Hua Chao, Hualien Teachers College (Taiwan)
Neal C. Evans, Univ. of Alabama/Birmingham (United States)
David L. Shealy, Univ. of Alabama/Birmingham (United States)
R. Barry Johnson, Optical ETC, Inc. (United States)

Published in SPIE Proceedings Vol. 2863:
Current Developments in Optical Design and Engineering VI
Robert E. Fischer; Warren J. Smith, Editor(s)

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