Peter Spanoudakis

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This design is based on the CSEM Flextec technology, already used in several CSEM applications. Flextec technology relates to compliant structures and provides high precision guidance without friction. Abstract—The CSEM, or Swiss Center of for Electronics and Microtechnology, has developed a Tip-Tilt mechanism based on a flexible guiding (Flextec) solution.(More)
NAOS (Nasmyth Adaptive Optics System) is the adaptive optics system presently developed for the ESO VLT. The field selectors are to feed the NAOS wavefront sensor with the light coming from an appropriate reference source which can be up to 1 arcmin (on the sky) distant from the center of the field of view. A large input tip-tilt-piston mirror selects the(More)
The Point Ahead Angle Mechanism (PAAM) for ESA’s Laser Interferometer Space Antenna (LISA) mission will compensate the out-of-plane point-ahead angle between three satellites flying 5 million kilometres apart. The PAAM consists of a mirror supported by flexures allowing the mirror to rotate with a maximum stroke of ±1 mrad. The mirror is actuated in 0.14(More)
This paper presents the breadboard of the mechanical slit mask to be designed for the MOSFIRE instrument of the KECK Telescope. This mechanism is designed to function at a cryogenic temperature of 120 K, in vacuum. The reconfigurable mask will allow to form 41 optical slits in a 262 mm times 262 mm field of view. The slit length is fixed and their width can(More)
The Multi-Object Spectrograph for Infrared Exploration (MOSFIRE) achieved first light on the W. M. Keck Observatory’s Keck I telescope on 4 April 2012 and quickly became the most popular Keck I instrument. One of the primary reasons for the instrument’s popularity is that it uses a configurable slitmask unit developed by the Centre Suisse d’Electronique et(More)
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