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Proceedings Paper

An optical shutter for the Euclid imager
Author(s): Adrian M. Glauser; J. Amiaux; J.-L. Auguères; S. Lilly; A. Refregier
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Paper Abstract

We present a first design study of the shutter mechanism to be implemented on the visible channel of the Euclid imager. The main functionality of the shutter is to obscure the light during the detector read-out and flat field calibration. Hence, the major design drivers are the number of open/close cycles of 160,000 and the opening/closing time of 5 sec without introducing a too large uncompensated momentum disturbance. The current design foresees to use two fully redundant actuators, which drive the shutter via a lever system. In case of an actuator failure, the blocked actuator can be disengaged via a fail-safe system.

Paper Details

Date Published: 22 July 2010
PDF: 7 pages
Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77393K (22 July 2010); doi: 10.1117/12.856957
Show Author Affiliations
Adrian M. Glauser, Institute for Astronomy, ETH Zurich (Switzerland)
UK Astronomy Technology Ctr. (United Kingdom)
J. Amiaux, CEA, IRFU, SAp (France)
J.-L. Auguères, CEA, IRFU, SAp (France)
S. Lilly, Institute for Astronomy, ETH Zurich (Switzerland)
A. Refregier, CEA, IRFU, SAp (France)

Published in SPIE Proceedings Vol. 7739:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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