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Proceedings Paper

Using nodal aberration theory to understand the aberrations of multiple unobscured three mirror anastigmatic (TMA) telescopes
Author(s): Kevin P. Thompson; Kyle Fuerschbach; Tobias Schmid; Jannick P. Rolland
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Paper Abstract

The alignment of three mirror anastigmatic (TMA) telescopes has been studied since their invention in the 60s. Recently, Thompson et al.1 reported that other than the conventional uniform coma over the field caused by misalignment, TMA telescopes display only one other misalignment induced aberration, field-asymmetric, field-linear astigmatism. Currently, an instrument with three TMAs is under development as the primary spectrometer on the James Webb Space Telescope. This paper will report on the application of Nodal Aberration Theory (NAT) to understanding the optical design of an optical system with multiple TMAs as a first step towards investigating and potentially independently analyzing the sensitivities to alignment of this key instrument.

Paper Details

Date Published: 21 August 2009
PDF: 8 pages
Proc. SPIE 7433, Optical System Alignment, Tolerancing, and Verification III, 74330B (21 August 2009); doi: 10.1117/12.826749
Show Author Affiliations
Kevin P. Thompson, Optical Research Associates (United States)
Kyle Fuerschbach, Univ. of Rochester (United States)
Tobias Schmid, College of Optics & Photonics, Univ. of Central Florida (United States)
Jannick P. Rolland, Univ. of Rochester (United States)
College of Optics & Photonics, Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 7433:
Optical System Alignment, Tolerancing, and Verification III
José Sasián; Richard N. Youngworth, Editor(s)

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