GMT adaptive secondary mirrors subsystem final design

Daniele Gallieni; Matteo Tintori; Pierluigi Fumi; Lorenzo Crimella; Roberto Biasi; Gerald Angerer; Mauro Manetti; Antonin Bouchez; Glenn Brossus; Frank Groark; Peter M. Thompson

doi:10.1117/12.2562698

13 December 2020 GMT adaptive secondary mirrors subsystem final design

Daniele Gallieni, Matteo Tintori, Pierluigi Fumi, Lorenzo Crimella, Roberto Biasi, Gerald Angerer, Mauro Manetti, Antonin Bouchez, Glenn Brossus, Frank Groark, Peter M. Thompson

Author Affiliations +

Proceedings Volume 11448, Adaptive Optics Systems VII; 114485K (2020) https://doi.org/10.1117/12.2562698
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

We present the final design of the Giant Magellan Telescope (GMT) Adaptive Secondary Mirrors System (ASMS), which comprises seven 1m class deformable mirrors segments plus seven hexapod positioners. Each deformable mirror is based on the well established contactless technology developed by AdOptica and already successfully deployed in several 8m class telescopes. The challenge for GMT is that the seven deformable mirrors will function as a single mirror. A subscale prototype made of 72 actuators has been produced to secure system final design: test setup and preliminary results are presented.

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Daniele Gallieni, Matteo Tintori, Pierluigi Fumi, Lorenzo Crimella, Roberto Biasi, Gerald Angerer, Mauro Manetti, Antonin Bouchez, Glenn Brossus, Frank Groark, and Peter M. Thompson "GMT adaptive secondary mirrors subsystem final design", Proc. SPIE 11448, Adaptive Optics Systems VII, 114485K (13 December 2020); https://doi.org/10.1117/12.2562698

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