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Proceedings Paper

Active optics methods for highly aspheric mirrors: manufacturing the quaternary mirror of the OWL project
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Paper Abstract

The elastic methods, especially the large deformations theory, and their applications to optical manufacturing are discussed in the frame of the next telescope generation. The force distribution corresponding to the required aspheric deformation can be applied during the figuring and polishing process or later on, directly in the telescope. For highly aspheric optics, like those considered in optical designs for the OWL project, the first solution, also called stress polishing, is preferred. Calculation and results obtained for a 6 - 8 m class mirror with the high asphericity foreseen in the OWL designs are presented.

Paper Details

Date Published: 20 July 2000
PDF: 9 pages
Proc. SPIE 4003, Optical Design, Materials, Fabrication, and Maintenance, (20 July 2000); doi: 10.1117/12.391528
Show Author Affiliations
Marc Ferrari, Observatoire Astronomique de Marseille (France)
Gerard R. Lemaitre, Observatoire Astronomique de Marseille (France)

Published in SPIE Proceedings Vol. 4003:
Optical Design, Materials, Fabrication, and Maintenance
Philippe Dierickx, Editor(s)

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