caa a22 4500 44583014X CHVBK 20180317145312.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10686-010-9201-6 doi (NATIONALLICENCE)springer-10.1007/s10686-010-9201-6 The Fresnel Imager: learning from ground-based generation I prototype [Elektronische Daten] [Denis Serre, Laurent Koechlin, Paul Deba] The "Generation I Fresnel Imager Prototype” is a ground-based prototype of a Fresnel Imager (Koechlin et al., Astron Astrophys 443:709-720, 2005), reduced in size (optical elements have a dimension of a few cm) but which features all the elements of an operational Fresnel Imager, and integrated in a clean room. Its design has started in October 2004, the first images were obtained early 2006, the key optical element: a cophased Fresnel Zone Lens, was integrated during summer 2006, and since then it has been used to evaluate new types of target shapes, of Fresnel Array cuttings... . It has been decommissioned end of 2008, some constitutive elements becoming parts of the so-called "Generation II Fresnel Imager Prototype”. We present the constitutive elements and the achieved results, and the lessons learned from this prototype. The Author(s), 2010 Fresnel nationallicence High dynamic range nationallicence High angular resolution nationallicence Ground-based prototype nationallicence Serre Denis Leiden Observatory, Leiden University, PO Box 9513, 2300RA, Leiden, The Netherlands aut Koechlin Laurent Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 Avenue Edouard Belin, 31400, Toulouse, France aut Deba Paul Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 Avenue Edouard Belin, 31400, Toulouse, France aut Experimental Astronomy Springer Netherlands 30/2-3(2011-06-01), 137-147 0922-6435 30:2-3<137 2011 30 10686 https://doi.org/10.1007/s10686-010-9201-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10686-010-9201-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Serre Denis Leiden Observatory, Leiden University, PO Box 9513, 2300RA, Leiden, The Netherlands aut NATIONALLICENCE 700 1- Koechlin Laurent Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 Avenue Edouard Belin, 31400, Toulouse, France aut NATIONALLICENCE 700 1- Deba Paul Laboratoire d'Astrophysique de Toulouse-Tarbes, Université de Toulouse, CNRS, 14 Avenue Edouard Belin, 31400, Toulouse, France aut NATIONALLICENCE 773 0- Experimental Astronomy Springer Netherlands 30/2-3(2011-06-01), 137-147 0922-6435 30:2-3<137 2011 30 10686 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer