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20 October 2004 Star separator system for the dual-field capability (PRIMA) of the VLTI
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In the framework of the Phase-Referenced Imaging and Micro-arcsecond Astrometry facility (PRIMA) developed for the Very Large Telescope Interferometer (VLTI), a sophisticated opto-mechanical system has been developed by TNO-TPD. It will be placed at the Coudé focus of the telescopes and will allow picking up two stars anywhere in a 2 arcmin field-of-view and collimating their light into two beams that will propagate through the rest of the interferometer toward the instrument. These Star Separator systems have a very high optical quality, fast and accurate pointing and chopping, independent high speed remote control of the beam tip-tilt and of the pupil position. They are very rigid, accurate mechanical systems non-sensitive to temperature variations The Star Separator systems are described in this paper.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Francoise Delplancke, Jan Nijenhuis, Harry de Man, Luigi Andolfato, Rainer Treichel, Jan Hopman, and Frederic Derie "Star separator system for the dual-field capability (PRIMA) of the VLTI", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004);

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