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Proceedings Paper

A Generalized Sine Condition And Performance Comparison Of Wolter Type II And Wolter-Schwarzschild Extreme Ultraviolet Telescopes
Author(s): Timo T. Saha
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Paper Abstract

An equation similar to the Abbe sine condition is derived for a Wolter type II telescope. This equation and the sine condition are then combined to produce a so called generalized sine condition. Using the law of reflection, Fermat's principle, the generalized sine condition, and simple geometry the surface equations for a Wolter type II telescope and an equivalent Wolter-Schwarzschild telescope are calculated. The performances of the telescopes are compared in terms of rms blur circle radius at the gaussian focal plane and at best focus.

Paper Details

Date Published: 3 November 1983
PDF: 6 pages
Proc. SPIE 0444, Advanced Technology Optical Telescopes II, (3 November 1983); doi: 10.1117/12.937965
Show Author Affiliations
Timo T. Saha, Goddard Space Flight Center (United States)


Published in SPIE Proceedings Vol. 0444:
Advanced Technology Optical Telescopes II
Lawrence D. Barr; Brian Mack, Editor(s)

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