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Proceedings Paper

Wavefront calibration testing of the James Webb Space Telescope primary mirror center of curvature optical assembly
Author(s): Gene Olczak; Conrad Wells; David J. Fischer; Mark T. Connolly
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Paper Abstract

The James Webb Space Telescope (JWST) Optical Telescope Element (OTE) consists of a 6.6 meter clear aperture, all-reflective, three-mirror anastigmat. The 18-segment primary mirror (PM) presents unique and challenging assembly, integration, alignment and testing requirements. A full aperture center of curvature optical test is performed in cryogenic vacuum conditions at the integrated observatory level to verify PM performance requirements. Two wavefront calibration tests are utilized to verify the low and mid/high spatial frequency performance of the test system. In this paper the methods and results of the wavefront calibration tests are presented.

Paper Details

Date Published: 13 September 2012
PDF: 10 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84500R (13 September 2012); doi: 10.1117/12.927003
Show Author Affiliations
Gene Olczak, ITT Exelis Inc. (United States)
Conrad Wells, ITT Exelis Inc. (United States)
David J. Fischer, TASC (United States)
Mark T. Connolly, ITT Exelis Inc. (United States)


Published in SPIE Proceedings Vol. 8450:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Ramón Navarro; Colin R. Cunningham; Eric Prieto, Editor(s)

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