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Optical Engineering

All-Spherical Four-Mirror Telescopes Corrected For Three Seidel Aberrations
Author(s): Jong Ung Lee; Sang Soo Lee
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Paper Abstract

The third-order Seidel aberrations of a four-spherical-mirror system for an anastigmatic aplanat, flat field aplanat, and zero distortion aplanat are analytically derived and numerically investigated, and their residual finite ray aberrations are examined. The anastigmatic aplanat is composed of a front Cassegrainian system and a rear inverse Cassegrainian system, where the image formed by the front Cassegrainian system is relayed by the rear inverse Cassegrainian system. The flat field aplanat is similar in appearance to the anastigmatic aplanat except that the rear part is far larger than the front part. The zero distortion aplanat is composed of a front Gregorian system and a rear inverse Cassegrainian system.

Paper Details

Date Published: 1 June 1988
PDF: 7 pages
Opt. Eng. 27(6) 276491 doi: 10.1117/12.7976709
Published in: Optical Engineering Volume 27, Issue 6
Show Author Affiliations
Jong Ung Lee, Korea Advanced Institute of Science (S. Korea)
Sang Soo Lee, Korea Advanced Institute of Science (S. Korea)


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