Control and support of 4-meter class secondary and tertiary mirrors for the Thirty Meter Telescope

Dan Blanco; Myung Cho; Larry Daggert; Phil Daly; Joe DeVries; Jonathan Elias; Bruce Fitz-Patrick; Ed Hileman; Mark Hunten; Ming Liang; Mark Nickerson; Earl Pearson; Dave Rosin; Mark Sirota; Larry Stepp

doi:10.1117/12.672626

6 July 2006 Control and support of 4-meter class secondary and tertiary mirrors for the Thirty Meter Telescope

Dan Blanco, Myung Cho, Larry Daggert, Phil Daly, Joe DeVries, Jonathan Elias, Bruce Fitz-Patrick, Ed Hileman, Mark Hunten, Ming Liang, Mark Nickerson, Earl Pearson, Dave Rosin, Mark Sirota, Larry Stepp

Author Affiliations +

Proceedings Volume 6273, Optomechanical Technologies for Astronomy; 62731A (2006) https://doi.org/10.1117/12.672626
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

The Thirty Meter Telescope (TMT) project is a partnership between ACURA, AURA, Caltech, and the University of California. The design calls for a 3.6 m diameter secondary mirror and an elliptical tertiary mirror measuring more than 4 m along its major axis. Each mirror will weigh more than two metric tons and must be articulated to compensate for deformation of the telescope structure. The support and control of these "smaller optics" pose significant challenges for the designers. We present conceptual designs for active and passive figure control and articulation of these optics.

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Dan Blanco, Myung Cho, Larry Daggert, Phil Daly, Joe DeVries, Jonathan Elias, Bruce Fitz-Patrick, Ed Hileman, Mark Hunten, Ming Liang, Mark Nickerson, Earl Pearson, Dave Rosin, Mark Sirota, and Larry Stepp "Control and support of 4-meter class secondary and tertiary mirrors for the Thirty Meter Telescope", Proc. SPIE 6273, Optomechanical Technologies for Astronomy, 62731A (6 July 2006); https://doi.org/10.1117/12.672626

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