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Proceedings Paper

Optical wavefront differentiation: wavefront sensing for solar adaptive optics based on a LCD
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Paper Abstract

We present the results of our first experimental tests of the concept of an alternative wavefront sensor for extended, incoherent light sources such as the sun. This concept is not associated with subapertures and therefore does not suffer from involved restrictions. In theory, this wavefront sensor also needs very little light from the telescope. The sensor employs a liquid crystal display as used in digital video projectors for masking an image plane in an aberrated telescope. We describe a laboratory setup and an advanced prototype used at the German Vaccum Tower Telescope (VTT), Tenerife.

Paper Details

Date Published: 16 May 2007
PDF: 10 pages
Proc. SPIE 6584, Adaptive Optics for Laser Systems and Other Applications, 658408 (16 May 2007); doi: 10.1117/12.722640
Show Author Affiliations
Dirk Schmidt, Kiepenheuer Institut für Sonnenphysik (Germany)
Oskar von der Lühe, Kiepenheuer Institut für Sonnenphysik (Germany)

Published in SPIE Proceedings Vol. 6584:
Adaptive Optics for Laser Systems and Other Applications
Gilles Cheriaux; Chris J. Hooker; Michal Stupka, Editor(s)

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