Last results of technological developments for ultra-lightweight, large aperture, deployable mirror for space telescopes

Date Issued
2017
Author(s)
Gambicorti, Lisa
•
D'Amato, Francesco
•
Vettore, Christian
•
Duò, Fabrizio
•
Guercia, Alessio
•
Patauner, Christian
•
Biasi, Roberto
•
Lisi, Franco
•
•
Gallieni, Daniele
•
Lazzarini, Paolo
•
Tintori, Matteo
•
Zuccaro Marchi, Alessandro
•
Pereira do Carmo, Joao
DOI
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.
Coverage
International Conference on Space Optics - ICSO 2012
All editors
Cugny, Bruno; Armandillo, Errico; Karafolas, Nikos
Series
Volume
10564
Start page
1056415
Conferenece
International Conference on Space Optics - ICSO 2012
Conferenece place
Ajaccio, Corsica, France
Conferenece date
9-12 October, 2012
Uri
Url
Issn Identifier
0277-786X
Ads BibCode
2017SPIE10564E..15G
Rights
open.access
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