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Proceedings Paper

Characterization of large deformable mirrors
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Paper Abstract

A key element in any adaptive optics system is the deformable mirror used to introduce the conjugate correction. In this paper we will present the results from characterizing a pair of custom 20 element, 38 mm diameter, bimorph deformable mirrors that were specifically designed to provide unusually large stroke to allow correction of significant focus and astigmatism terms in a human fundus adaptive optics imager. Data on the measured correction capability and inherent hysteresis of the mirror shown that the mirrors have 40 μm waves of defocus correction and 20 μm waves of astigmatism correction at 760 nm, with a typical hysteresis at full deflection of 15%. This technology is patented under Patent # 6,331,059 B1.

Paper Details

Date Published: 11 November 2004
PDF: 8 pages
Proc. SPIE 5572, Optics in Atmospheric Propagation and Adaptive Systems VII, (11 November 2004); doi: 10.1117/12.565256
Show Author Affiliations
Gavin R. G. Erry, Kestrel Corp. (United States)
Leonard John Otten, Kestrel Corp. (United States)
Paul Harrison, Kestrel Corp. (United States)
Vadim Samarkin, Institute on Laser and Information Technologies (Russia)

Published in SPIE Proceedings Vol. 5572:
Optics in Atmospheric Propagation and Adaptive Systems VII
John D. Gonglewski; Karin Stein, Editor(s)

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