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Proceedings Paper

High-order adaptive optics system with a high-density spherical membrane deformable mirror
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Paper Abstract

We have designed a new type of curved deformable mirror with 3000 actuators. It will be used at the 6.5 m MMT telescope in an adaptive optics system to correct the wavefront on a scale of 12 cm, for diffraction limited images in visible light and for high contrast imaging with a coronagraph in the near IR. The mirror's 51 cm diameter glass faceplate, 400 microns thick, will be actuated by tubular piezoceramic actuators on 8 mm centers. The mirror is made concave so it can be used in a simple, compact optical relay with no need for large collimator or camera elements. A prototype deformable mirror with 300 elements that test the support and assembly techniques is being built for lab test and will be tested in a closed loop adaptive optics system at the Steward Observatory.

Paper Details

Date Published: 18 July 1999
PDF: 8 pages
Proc. SPIE 3762, Adaptive Optics Systems and Technology, (18 July 1999); doi: 10.1117/12.363600
Show Author Affiliations
Maud P. Langlois, Steward Observatory/Univ. of Arizona (United Kingdom)
James Roger P. Angel, Steward Observatory/Univ. of Arizona (United States)
Michael Lloyd-Hart, Steward Observatory/Univ. of Arizona (United States)
Stephen M. Miller III, Steward Observatory/Univ. of Arizona (United States)
George Z. Angeli, Steward Observatory/Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 3762:
Adaptive Optics Systems and Technology
Robert K. Tyson; Robert Q. Fugate, Editor(s)

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