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1 November 1990 Adaptive optics wavefront corrector using addressable liquid crystal retarders
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For the 8m astronomical telescopes which will see first light in the '90s, interest in adaptive optics correction of the wavefront degraded by atmospheric Wrbulence is very great. A wavefront corrector is described in this paper, in which we present an approach based on liquid crystal material. Some of the properties in favor of using this technique are analyzed, together with some experimental results on a prototype. The great advantage of the liquid crystal approach is that a large number of actuators can be obtained in a 1-2 inch device, at a cost orders of magnitude lower than the conventional mirror-piezoactuator device.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Domenico Bonaccini, Guido Brusa-Zappellini, Simone Esposito, Piero Salinari, and Paolo Stefanini "Adaptive optics wavefront corrector using addressable liquid crystal retarders", Proc. SPIE 1334, Current Developments in Optical Engineering IV, (1 November 1990); doi: 10.1117/12.22840;

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