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Proceedings Paper

The double pyramid wavefront sensor for LBT
Author(s): A. Tozzi; P. Stefanini; E. Pinna; S. Esposito
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Paper Abstract

The wavefront sensor (WFS) for the Large Binocular Telescope is based on a pyramid sensor with a maximum sampling of 30x30 subapertures. In particular the pyramid used in the WFS is a Double Pyramid (DP). This for two reasons: the first is that so doing it is possible to have pyramids with a base angle greeter than the angle of a single pyramid so that athe polishing process is made easier. The second is that it is possible to reduce the chromatic effects that the use of a single pyramid introduces. This enables to work with a larger wavelenght range.

Paper Details

Date Published: 15 July 2008
PDF: 9 pages
Proc. SPIE 7015, Adaptive Optics Systems, 701558 (15 July 2008); doi: 10.1117/12.789311
Show Author Affiliations
A. Tozzi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
P. Stefanini, INAF - Osservatorio Astrofisico di Arcetri (Italy)
E. Pinna, INAF - Osservatorio Astrofisico di Arcetri (Italy)
S. Esposito, INAF - Osservatorio Astrofisico di Arcetri (Italy)

Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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