Using nodal aberration theory to understand the aberrations of multiple unobscured three mirror anastigmatic (TMA) telescopes

Kevin P. Thompson; Kyle Fuerschbach; Tobias Schmid; Jannick P. Rolland

doi:10.1117/12.826749

21 August 2009 Using nodal aberration theory to understand the aberrations of multiple unobscured three mirror anastigmatic (TMA) telescopes

Kevin P. Thompson, Kyle Fuerschbach, Tobias Schmid, Jannick P. Rolland

Author Affiliations +

Proceedings Volume 7433, Optical System Alignment, Tolerancing, and Verification III; 74330B (2009) https://doi.org/10.1117/12.826749
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

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.

Citation Download Citation

Kevin P. Thompson, Kyle Fuerschbach, Tobias Schmid, and Jannick P. Rolland "Using nodal aberration theory to understand the aberrations of multiple unobscured three mirror anastigmatic (TMA) telescopes", Proc. SPIE 7433, Optical System Alignment, Tolerancing, and Verification III, 74330B (21 August 2009); https://doi.org/10.1117/12.826749

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