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Title: | Laboratory demonstration of a primary active mirror for space with the LATT: large aperture telescope technology | Authors: | BRIGUGLIO PELLEGRINO, RUNA ANTONIO Biasi, Roberto Gallieni, Daniele Vettore, Christian d'Amato, Francesco XOMPERO, MARCO ARCIDIACONO, CARMELO Lisi, Franco RICCARDI, Armando Patauner, Christian Lazzarini, Paolo Tintori, Matteo Duò, Fabrizio Pucci, Mauro Zuccaro Marchi, Alessandro Maresi, Luca |
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: | 99046C | Abstract: | The LATT project is an ESA contract under TRP programme to demonstrate the scalability of the technology from ground-based adaptive mirrors to space active primary mirrors. A prototype spherical mirror based on a 40 cm diameter 1 mm thin glass shell with 19 contactless, voice-coil actuators and co-located position sensors have been manufactured and integrated into a final unit with an areal density lower than 20 kg/m2. Laboratory tests demonstrated the controllability with very low power budget and the survival of the fragile glass shell exposed to launch accelerations, thanks to an electrostatic locking mechanism; such achievements pushes the technology readiness level toward 5. With this prototype, the LATT project explored the feasibility of using an active and lightweight primary for space telescopes. The concept is attractive for large segmented telescopes, with surface active control to shape and co-phase them once in flight. In this paper we will describe the findings of the technological advances and the results of the environmental and optical tests. | 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/20.500.12386/26578 | URL: | https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9904/1/Laboratory-demonstration-of-a-primary-active-mirror-for-space-with/10.1117/12.2231726.full | ISSN: | 0277-786X | ISBN: | 9781510601871 9781510601888 |
DOI: | 10.1117/12.2231726 | Bibcode ADS: | 2016SPIE.9904E..6CB | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
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laboratory-demonstration-primary-active-mirror.pdf | Pdf editoriale | 1.07 MB | Adobe PDF | View/Open |
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