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Proceedings Paper • Open Access

Last results of technological developments for ultra-lightweight, large aperture, deployable mirror for space telescopes
Author(s): Lisa Gambicorti; Francesco D'Amato; Christian Vettore; Fabrizio Duò; Alessio Guercia; Christian Patauner; Roberto Biasi; Franco Lisi; Armando Riccardi; Daniele Gallieni; Paolo Lazzarini; Matteo Tintori; Alessandro Zuccaro Marchi; Joao Pereira do Carmo

Paper Abstract

The aim of this work is to describe the latest results of new technological concepts for Large Aperture Telescopes Technology (LATT) using thin deployable lightweight active mirrors. This technology is developed under the European Space Agency (ESA) Technology Research Program and can be exploited in all the applications based on the use of primary mirrors of space telescopes with large aperture, segmented lightweight telescopes with wide Field of View (FOV) and low f/#, and LIDAR telescopes. The reference mission application is a potential future ESA mission, related to a space borne DIAL (Differential Absorption Lidar) instrument operating around 935.5 nm with the goal to measure water vapor profiles in atmosphere. An Optical BreadBoard (OBB) for LATT has been designed for investigating and testing two critical aspects of the technology:

1) control accuracy in the mirror surface shaping. 2) mirror survivability to launch.

The aim is to evaluate the effective performances of the long stroke smart-actuators used for the mirror control and to demonstrate the effectiveness and the reliability of the electrostatic locking (EL) system to restraint the thin shell on the mirror backup structure during launch. The paper presents a comprehensive vision of the breadboard focusing on how the requirements have driven the design of the whole system and of the various subsystems. The manufacturing process of the thin shell is also presented.

Paper Details

Date Published: 20 November 2017
PDF: 8 pages
Proc. SPIE 10564, International Conference on Space Optics — ICSO 2012, 1056415 (20 November 2017); doi: 10.1117/12.2309039
Show Author Affiliations
Lisa Gambicorti, National Institute of Optics (Switzerland)
Francesco D'Amato, National Institute of Optics (Italy)
Christian Vettore, Compagnia Generale dello Spazio (Italy)
Fabrizio Duò, Compagnia Generale dello Spazio (Italy)
Alessio Guercia, Compagnia Generale dello Spazio (Italy)
Christian Patauner, Microgate S.r.l. (Italy)
Roberto Biasi, Microgate S.r.l. (Italy)
Franco Lisi, INAF - Arcetri Astrophysics Observatory (Italy)
Armando Riccardi, INAF - Arcetri Astrophysics Observatory (Italy)
Daniele Gallieni, A.D.S. International (Italy)
Paolo Lazzarini, A.D.S. International (Italy)
Matteo Tintori, A.D.S. International (Italy)
Alessandro Zuccaro Marchi, European Space Research and Technology Ctr. (Netherlands)
Joao Pereira do Carmo, European Space Research and Technology Ctr. (Netherlands)

Published in SPIE Proceedings Vol. 10564:
International Conference on Space Optics — ICSO 2012
Bruno Cugny; Errico Armandillo; Nikos Karafolas, Editor(s)

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