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Proceedings Paper

Design and construction of a focal plane slicing mirror
Author(s): Demetrio Magrin; Enrico Giro; Favio Bortoletto; Giuseppe Crimi; Claudio Pernechele; Raffaele Tomelleri
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Paper Abstract

We describe here the optical design, mechanical project and the manufacturing of a mechanically reconfigurable spherical slicing mirror. We made use of nowadays commonly available mechanical cutting techniques (wire spark-erosion) to obtain single blades (slices) shaped with profile close to the optical sag specification. Blades so constructed are ready to be optically finished with standard optical workshop techniques. We present here the results obtained from metrology made on the first constructive phase of the system before to start the final optical polishing phase.

Paper Details

Date Published: 18 July 2008
PDF: 9 pages
Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 701837 (18 July 2008); doi: 10.1117/12.787550
Show Author Affiliations
Demetrio Magrin, INAF-Osservatorio Astronomico di Padova (Italy)
Enrico Giro, INAF-Osservatorio Astronomico di Padova (Italy)
Favio Bortoletto, INAF-Osservatorio Astronomico di Padova (Italy)
Giuseppe Crimi, INAF-Osservatorio Astronomico di Brera (Italy)
Claudio Pernechele, INAF-Osservatorio Astronomico di Cagliari (Italy)
Raffaele Tomelleri, Tomelleri Srl (Italy)

Published in SPIE Proceedings Vol. 7018:
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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