Generic misalignment aberration patterns and the subspace of benign misalignment
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Schechter_Generic misalignment.pdf
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4.51 MB
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Author(s)
Schechter, Paul L.
Levinson, Rebecca Sobel
Date Issued
September 2012
Journal
Ground-based and Airborne Telescopes IV
Publisher
Society of Photo-Optical Instrumentation Engineers (SPIE)
Citation
Schechter, Paul L., and Rebecca Sobel Levinson. “Generic Misalignment Aberration Patterns and the Subspace of Benign Misalignment.” Edited by Larry M. Stepp, Roberto Gilmozzi, and Helen J. Hall. Ground-Based and Airborne Telescopes IV, 844455 (September 17, 2012). (SPIE Proceedings; volume 8444). © SPIE.
Version
Final published version
Abstract
Q1: Why deploy N wavefront sensors on a three mirror anastigmat (TMA) and not N + 1? Q2: Why measure M Zernike coefficients and not M + 1? Q3: Why control L rigid body degrees of freedom (total) on the secondary and tertiary and not L + 1? The usual answer: “We did a lot of ray tracing and N, M, and L seemed OK.” We show how straightforward results from aberration theory may be used to address these questions. We consider, in particular, the case of a three mirror anastigmat.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://spie.org/Publications/Proceedings/Paper/10.1117/12.925075
