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Proceedings Paper

Automatic alignment system for telescopes
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Paper Abstract

From the local wavefront slope measurement given by a Shack Hartmann wavefront sensor (SH), it is possible to evaluate the decentering aberrations introduced by optical system misalignments. These slopes can be expressed as a function of the centered system aberrations and of the optical axis displacements in the image and pupil planes. After calibration of the wavefront sensor, the system alignment can be, for small aberrations, automatically controlled. The validity of the concept was proved on a representative observation system.

Paper Details

Date Published: 30 September 1994
PDF: 5 pages
Proc. SPIE 2210, Space Optics 1994: Space Instrumentation and Spacecraft Optics, (30 September 1994); doi: 10.1117/12.188136
Show Author Affiliations
Marie-Therese Velluet, ONERA (France)
Marc Sechaud, ONERA (France)
Vincent Michau, ONERA (France)
Pierre-Yves Madec, ONERA (France)


Published in SPIE Proceedings Vol. 2210:
Space Optics 1994: Space Instrumentation and Spacecraft Optics
Thierry M. Dewandre; Joachim J. Schulte-in-den-Baeumen; Emmanuel Sein, Editor(s)

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