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Proceedings Paper

New and improved technology for manufacture of GMT primary mirror segments
Author(s): Dae Wook Kim; James H. Burge; Jonathan M. Davis; Hubert M. Martin; Michael T. Tuell; Logan R. Graves; Steve C. West
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Paper Abstract

The Giant Magellan Telescope (GMT) primary mirror consists of seven 8.4 m light-weight honeycomb mirrors that are being manufactured at the Richard F. Caris Mirror Lab (RFCML), University of Arizona. In order to manufacture the largest and most aspheric astronomical mirrors various high precision fabrication technologies have been developed, researched and implemented at the RFCML. The unique 8.4 m (in mirror diameter) capacity fabrication facilities are fully equipped with large optical generator (LOG), large polishing machine (LPM), stressed lap, rigid conformal lap (RC lap) and their process simulation/optimization intelligence called MATRIX. While the core capability and key manufacturing technologies have been well demonstrated by completing the first GMT off-axis segment, there have been significant hardware and software level improvements in order to improve and enhance the GMT primary mirror manufacturing efficiency. The new and improved manufacturing technology plays a key role to realize GMT, the next generation extremely large telescope enabling new science and discoveries, with high fabrication efficiency and confidence.

Paper Details

Date Published: 22 July 2016
PDF: 8 pages
Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99120P (22 July 2016); doi: 10.1117/12.2231911
Show Author Affiliations
Dae Wook Kim, College of Optical Sciences, The Univ. of Arizona (United States)
Steward Observatory (United States)
James H. Burge, College of Optical Sciences, The Univ. of Arizona (United States)
Jonathan M. Davis, Steward Observatory (United States)
Hubert M. Martin, Steward Observatory (United States)
Michael T. Tuell, Steward Observatory (United States)
Logan R. Graves, College of Optical Sciences, The Univ. of Arizona (United States)
Steve C. West, Steward Observatory (United States)


Published in SPIE Proceedings Vol. 9912:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
Ramón Navarro; James H. Burge, Editor(s)

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