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Proceedings Paper • Open Access

A technology demonstrator for development of ultra-lightweight, large aperture, deployable telescope for space applications
Author(s): Alessandro Zuccaro Marchi; Lisa Gambicorti; Francesca Simonetti; Piero Salinari; Franco Lisi; Alessandro Bursi; Massimiliano Olivier; Daniele Gallieni

Paper Abstract

This work presents the latest results of new technological concepts for large aperture, lightweight telescopes using thin deployable active mirrors. The study is originally addressed to a spaceborne DIAL (Differential Absorption Lidar) at 935.5 nm for the measurement of water vapour profile in atmosphere, as an output of an ESA contract (whose preliminary results were presented at ICSO 2006).

The high versatility of these concepts allows to exploit the presented technology for any project willing to consider large aperture, segmented lightweight telescopes. A possible scientific application is for Ultra High Energy Cosmic Rays detection through the fluorescence traces in atmosphere and diffused Cerenkov signals observation via a Schmidt-like spaceborne LEO telescope with large aperture, wide Field of View (FOV) and low f/#.

A technology demonstrator has been manufactured and tested in order to investigate two project critical areas identified during the preliminary design: the performances of the long-stroke actuators used to implement the mirror active control and the mirror survivability to launch. In particular, this breadboard demonstrates at first that the mirror actuators are able to control with the adequate accuracy the surface shape and to recover a deployment error with their long stroke; secondly, the mirror survivability has been demonstrated using an electrostatic locking between mirror and backplane able to withstand without failure a vibration test representative of the launch environment.

Paper Details

Date Published: 21 November 2017
PDF: 8 pages
Proc. SPIE 10566, International Conference on Space Optics — ICSO 2008, 1056604 (21 November 2017); doi: 10.1117/12.2308186
Show Author Affiliations
Alessandro Zuccaro Marchi, National Institute of Applied Optics (Italy)
Lisa Gambicorti, National Institute of Applied Optics (Italy)
Francesca Simonetti, National Institute of Applied Optics (Italy)
Piero Salinari, INAF (Italy)
Franco Lisi, INAF (Italy)
Alessandro Bursi, Carlo Gavazzi Space (Italy)
Massimiliano Olivier, Carlo Gavazzi Space (Italy)
Daniele Gallieni, ADS International (Italy)

Published in SPIE Proceedings Vol. 10566:
International Conference on Space Optics — ICSO 2008
Josiane Costeraste; Errico Armandillo; Nikos Karafolas, Editor(s)

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