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Proceedings Paper

High stability piezomotor driven mirror mounts for LINC-NIRVANA
Author(s): A. Bramigk; H. Marth; R.-R. Rohloff
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Paper Abstract

For the LINC-NIRVANA (LN) project, MPIA requested an appropriate motorized mount for initial alignment of two dichroic beam splitters in the instrument. These dichroic mirrors which reflect the visible light and transmit the NIR are located close to the pupil plane are therefore very sensitive to tilt and flexure errors which could be introduced to the wave-front sensor. Considering this the following high level specifications were requested in a very tight operating envelope: range of adjustment tip and tilt ±2° around the major axis of the elliptical mirror, resolution of adjustment <0.5 arcsec , position repeatability <1 arcsec, static position stability within an elevation 0° up to 90° <20 arc seconds and a minimum eigenfrequency <110Hz.

Paper Details

Date Published: 13 September 2012
PDF: 12 pages
Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84505R (13 September 2012); doi: 10.1117/12.931246
Show Author Affiliations
A. Bramigk, Physik Instrumente GmbH & Co. KG (Germany)
H. Marth, Physik Instrumente GmbH & Co. KG (Germany)
R.-R. Rohloff, Max-Planck-Institut für Astronomie (Germany)

Published in SPIE Proceedings Vol. 8450:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
Ramón Navarro; Colin R. Cunningham; Eric Prieto, Editor(s)

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