Translator Disclaimer
23 July 2008 PACT: the actuator to support the primary mirror of the ELT
Author Affiliations +
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.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
F. Kamphues, J. Nijenhuis D.V.M., R. den Breeje, T. C. van den Dool, and J. Ponsioen "PACT: the actuator to support the primary mirror of the ELT", Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70180Z (23 July 2008);


GMT primary mirror support
Proceedings of SPIE (July 22 2014)
E-ELT primary mirror control system
Proceedings of SPIE (July 17 2008)
LSST telescope primary/tertiary mirror hardpoints
Proceedings of SPIE (July 21 2010)
University Of California Ten Meter Telescope Project
Proceedings of SPIE (November 04 1982)
E-ELT M1 test facility
Proceedings of SPIE (September 17 2012)

Back to Top