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Proceedings Paper

Liquid deformable mirror for advanced sub-optical system testing
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Paper Abstract

The new giant telescopes can be compared to space projects. They will require ground-based test support equipment to fully characterize the optical sub-system functionalities and performances before costly commissioning on the telescope. The support equipment must be designed to reproduce the telescope or the front optical system's aberrated wavefront. We show that the aberrated wavefront can be generated at low cost by a magnetic liquid deformable mirror. A prototype 91- actuator liquid deformable mirror having a diameter of 33 mm was built and used to simulate the off-axis aberrated CFHT's primary mirror up to 0.5 degrees FOV.

Paper Details

Date Published: 19 July 2010
PDF: 8 pages
Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 773910 (19 July 2010); doi: 10.1117/12.857867
Show Author Affiliations
S. Thibault, Univ. Laval (Canada)
D. Brousseau, Univ. Laval (Canada)
E. F. Borra, Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 7739:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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