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Curved detectors for wide field imaging systems: impact on tolerance analysis
Author(s): Eduard Muslimov; Emmanuel Hugot; Simona Lombardo; Melanie Roulet; Thibault Behaghel; Marc Ferrari; Wilfried Jahn; Christophe Gaschet; Bertrand Chambion; David Henry
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Paper Abstract

In the present paper we consider quantitative estimation of the tolerances widening in optical systems with curved detectors. The gain in image quality allows to loosen the margins for manufacturing and assembling errors. On another hand, the requirements for the detector shape and positioning become more tight. We demonstrate both of the effects on example of two optical designs. The first one is a rotationally-symmetrical lens with focal length of 25 mm, f-ratio of 3.5 and field of view equal to 72°, working in the visible domain. The second design is a three-mirror anastigmat telescope with focal length of 250 mm, f-ratio of 2.0 and field of view equal to 4°x4°. In both of the cases use of curved detectors allow to increase the image quality and substantially decrease the requirements for manufacturing precision.

Paper Details

Date Published: 24 May 2018
PDF: 11 pages
Proc. SPIE 10679, Optics, Photonics, and Digital Technologies for Imaging Applications V, 106790W (24 May 2018); doi: 10.1117/12.2305923
Show Author Affiliations
Eduard Muslimov, Aix Marseille Univ, CNRS, CNES, LAM, Lab. d'Astrophysique de Marseille (France)
Kazan National Research Technical Univ. named after A.N. Tupolev (Russian Federation)
Emmanuel Hugot, Aix Marseille Univ, CNRS, CNES, LAM, Lab. d'Astrophysique de Marseille (France)
Simona Lombardo, Aix Marseille Univ, CNRS, CNES, LAM, Lab. d'Astrophysique de Marseille (France)
Melanie Roulet, Aix Marseille Univ, CNRS, CNES, LAM, Lab. d'Astrophysique de Marseille (France)
Thibault Behaghel, Aix Marseille Univ, CNRS, CNES, LAM, Lab. d'Astrophysique de Marseille (France)
Marc Ferrari, Aix Marseille Univ, CNRS, CNES, LAM, Lab. d'Astrophysique de Marseille (France)
Wilfried Jahn, Space Structure Lab. (France)
Christophe Gaschet, Univ. Grenoble Alpes, CEA, LETI (France)
Bertrand Chambion, Univ. Grenoble Alpes, CEA, LETI (France)
David Henry, Univ. Grenoble Alpes, CEA, LETI (France)


Published in SPIE Proceedings Vol. 10679:
Optics, Photonics, and Digital Technologies for Imaging Applications V
Peter Schelkens; Touradj Ebrahimi; Gabriel Cristóbal, Editor(s)

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