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http://hdl.handle.net/20.500.12386/26573
Title: | The LATT way towards large active primaries for space telescopes | Authors: | BRIGUGLIO PELLEGRINO, RUNA ANTONIO ARCIDIACONO, CARMELO XOMPERO, MARCO Lisi, Franco RICCARDI, Armando Biasi, Roberto Patauner, Christian Gallieni, Daniele Lazzarini, Paolo Tintori, Matteo d'Amato, Francesco Pucci, Mauro Duò, Fabrizio Vettore, Christian Zuccaro Marchi, Alessandro |
Issue Date: | 2016 | Volume: | Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave | Editors: | MacEwen, Howard A.; Fazio, Giovanni G.; Lystrup, Makenzie; Batalha, Natalie; Siegler, Nicholas; Tong, Edward C. | Series: | PROCEEDINGS OF SPIE | Number: | 9904 | First Page: | 99041B | Abstract: | The Large Aperture Telescope Technology (LATT) goes beyond the current paradigm of future space telescopes, based on a deformable mirror in the pupil relay. Through the LATT project we demonstrated the concept of a low-weight active primary mirror, whose working principle and control strategy benefit from two decades of advances in adaptive optics for ground-based telescopes. We developed a forty centimeter spherical mirror prototype, with an areal density lower than 17 kg/m<SUP>2</SUP>, controlled through contactless voice coil actuators with co-located capacitive position sensors. The prototype was subjected to thermo-vacuum, vibration and optical tests, to push its technical readiness toward level 5. In this paper we present the background and the outcomes of the LATT activities under ESA contract (TRP programme), exploring the concept of a lightweight active primary mirror for space telescopes. Active primaries will open the way to very large segmented apertures, actively shaped, which can be lightweight, deployable and accurately phased once in flight. | Conference Name: | Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave | Conference Place: | Edinburgh, United Kingdom | Conference Date: | 26 June - 1 July 2016 | URI: | http://hdl.handle.net/20.500.12386/26573 | URL: | https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9904/99041B/The-LATT-way-towards-large-active-primaries-for-space-telescopes/10.1117/12.2231712.short?SSO=1 | ISSN: | 0277-786X | ISBN: | 9781510601871 | DOI: | 10.1117/12.2231712 | Bibcode ADS: | 2016SPIE.9904E..1BB | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
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SPIE99041B.pdf | 1.01 MB | Adobe PDF | View/Open |
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