13 September 2012 High stability piezomotor driven mirror mounts for LINC-NIRVANA
Author Affiliations +
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.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Bramigk, H. Marth, R.-R. Rohloff, "High stability piezomotor driven mirror mounts for LINC-NIRVANA", Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84505R (13 September 2012); doi: 10.1117/12.931246; https://doi.org/10.1117/12.931246
PROCEEDINGS
12 PAGES


SHARE
KEYWORDS
Mirrors

Sensors

Mirror mounts

Actuators

Computer aided design

Computer programming

Autocollimators

Back to Top