All-Spherical Four-Mirror Telescopes Corrected For Three Seidel Aberrations

Jong Ung Lee; Sang Soo Lee

doi:10.1117/12.7976709

1 June 1988 All-Spherical Four-Mirror Telescopes Corrected For Three Seidel Aberrations

Jong Ung Lee, Sang Soo Lee

Author Affiliations +

Optical Engineering, Vol. 27, Issue 6, 276491 (June 1988). https://doi.org/10.1117/12.7976709

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.

Citation Download Citation

Jong Ung Lee and Sang Soo Lee "All-Spherical Four-Mirror Telescopes Corrected For Three Seidel Aberrations," Optical Engineering 27(6), 276491 (1 June 1988). https://doi.org/10.1117/12.7976709

Published: 1 June 1988

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