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Proceedings Paper • Open Access

Focal plane AIT sequence: evolution from HRG-Spot 5 to Pleiades HR
Author(s): Roland Le Goff; Pascal Pranyies; Isabelle Toubhans

Paper Abstract

Optical and geometrical image qualities of Focal Planes, for "push-broom" high resolution remote sensing satellites, require the implementation of specific means and methods for the AIT sequence. Indeed the geometric performances of the focal plane mainly axial focusing and transverse registration, are duly obtained on the basis of adjustment, setting and measurement of optical and CCD components with an accuracy of a few microns. Since the end of the 1970s, EADS-SODERN has developed a series of detection units for earth observation instruments like SPOT and Helios. And EADS-SODERN is now responsible for the development of the Pleiades High Resolution Focal Plane assembly.

This paper presents the AIT sequences. We introduce all the efforts, innovative solutions and improvements made on the assembly facilities to match the technical evolutions and breakthrough of the Pleiades HR FP concept in comparison with the previous High Resolution Geometric SPOT 5 Focal Plane. The main evolution drivers are the implementation of strip filters and the realization of 400 mm continuous retinas. For Pleiades HR AIT sequence, three specific integration and measuring benches, corresponding with the different assembly stages, are used: a 3-D non-contact measurement machine for the assembly of detection module, a 3-D measurement machine for mirror integration on the main Focal Plane SiC structure, and a 3-D geometric coordinates control bench to focus detection module lines and to ensure they are well registered together.

Paper Details

Date Published: 21 November 2017
PDF: 7 pages
Proc. SPIE 10567, International Conference on Space Optics — ICSO 2006, 105671O (21 November 2017); doi: 10.1117/12.2308109
Show Author Affiliations
Roland Le Goff, EADS-SODERN (France)
Pascal Pranyies, EADS-SODERN (France)
Isabelle Toubhans, EADS-SODERN (France)

Published in SPIE Proceedings Vol. 10567:
International Conference on Space Optics — ICSO 2006
Errico Armandillo; Josiane Costeraste; Nikos Karafolas, Editor(s)

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