Title
PACT: the actuator to support the primary mirror of the ELT
Author
TNO Industrie en Techniek
Kamphues, F.G.
Nijenhuis, J.R.
den Breeje, R.
van den Dool, T.C.
Ponsioen, J.
Publication year
2008
Abstract
The European Southern Observatory (ESO) has started technology development for their next generation optical telescope. Due to its ultra large collecting area, The European Extremely Large Telescope (E-ELT) will require a paradigm shift in telescope design to keep the overall program cost at an acceptable level. The E-ELT will feature a 42 meter segmented primary mirror and will make extensive use of active and adaptive optics. Each primary mirror segment will be supported by three actuators that control piston and tilt. TNO has developed a low cost nanopositioning actuator (PACT) for the primary mirror segments. The actuators will be tested by IAC and ESO, with support from TNO, under operational conditions in a Wind Evaluation Breadboard (WEB) at the Roque de Los Muchachos observatory in La Palma.
Subject
E-ELT
Large segmented mirror
Low cost nano actuator
Nano positioning
TMT
Actuators
Adaptive optics
Lanthanum
Mirrors
Observatories
Optical instruments
Photography
Technological forecasting
Optical telescopes
To reference this document use:
http://resolver.tudelft.nl/uuid:e8893a76-72bb-4795-98a5-bd6453a73826
TNO identifier
241127
ISBN
9780819472281
ISSN
0277-786X
Source
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 23-28 June 2008, Marseille, France, 7018 (7018)
Series
Proceedings of SPIE - The International Society for Optical Engineering
Document type
conference paper