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28 July 2000 Wavefront control for a segmented deployable space telescope
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By segmenting and folding the primary mirror, quite large telescopes can be packed into the nose cone of a rocket. Deployed after launch, initial optical performance can be quite poor, due to deployment errors, thermal deformation, fabrication errors and other causes. We describe an automatic control system for capturing, aligning, phasing, and deforming the optics of such a telescope, going from initial cm-level wavefront errors to diffraction-limited observatory operations. This system was developed for the Next Generation Space Telescope and is being tested on the NGST Wavefront Control Testbed.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David C. Redding, Scott A. Basinger, David Cohen, Andrew E. Lowman, Fang Shi, Pierre Y. Bely, Charles W. Bowers, Richard Burg, Laura A. Burns, Pamela S. Davila, Bruce H. Dean, Gary E. Mosier, Todd A. Norton, Peter Petrone III, Brendon D. Perkins, and Mark E. Wilson "Wavefront control for a segmented deployable space telescope", Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000);

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