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Proceedings Paper

Various Aspects Of Active Optics
Author(s): Gerard Lemaitre
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Paper Abstract

Optical telescopes of unprecedented size, high resolution optical arrays having large number of telescopes and more performant auxiliary instrumentations will be built by strongly applying the concept of active optics. Taking apart developments of adaptative optics relative to seeing compensation, the meaning of "active optics" must be considered as having at least three different senses i) maintaining, in situ, the best figure of the telescope optics during astronomical observations, ii) figuring highly aspheric optics and/or unaxisymmetric optics, and iii) modifying, in situ, the optical figure parameters as, for instance, the asphericity of a Cassegrain mirror for a better field optimization with respect to various focal instruments. This paper discusses some thoughts on these questions and presents some results and astronomical applications.

Paper Details

Date Published: 20 September 1989
PDF: 16 pages
Proc. SPIE 1114, Active Telescope Systems, (20 September 1989); doi: 10.1117/12.960838
Show Author Affiliations
Gerard Lemaitre, Observatoire de Marseille (France)

Published in SPIE Proceedings Vol. 1114:
Active Telescope Systems
Francois J. Roddier, Editor(s)

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