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Proceedings Paper

Applications of variable focus liquid lenses for curvature wave-front sensors in astronomy
Author(s): J. Fuentes-Fernández; S. Cuevas; L. C. Alvarez-Nuñez; A. M. Watson
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Paper Abstract

Curvature wavefront sensors obtain the wave-front aberrations from two defocused intensity images at each side of the pupil plane. Typically, when high modulation speeds are required, as it is the case with Adaptive Optics, that defocusing is done with a fast vibrating membrane mirror. We propose an alternative defocusing mechanism based on an electrowetting variable focus liquid lens. The use of such lenses may perform the required focus modulation without the need of extra moving parts, reducing the overall size of the system.

Paper Details

Date Published: 22 August 2014
PDF: 6 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91485J (22 August 2014); doi: 10.1117/12.2056933
Show Author Affiliations
J. Fuentes-Fernández, Univ. Nacional Autónoma de México (Mexico)
S. Cuevas, Univ. Nacional Autónoma de México (Mexico)
L. C. Alvarez-Nuñez, Univ. Nacional Autónoma de México (Mexico)
A. M. Watson, Univ. Nacional Autónoma de México (Mexico)

Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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