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

Marc Ferrari; Gerard R. Lemaitre

doi:10.1117/12.391528

20 July 2000 Active optics methods for highly aspheric mirrors: manufacturing the quaternary mirror of the OWL project

Marc Ferrari, Gerard R. Lemaitre

Proceedings Volume 4003, Optical Design, Materials, Fabrication, and Maintenance; (2000) https://doi.org/10.1117/12.391528
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

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.

Citation Download Citation

Marc Ferrari and Gerard R. Lemaitre "Active optics methods for highly aspheric mirrors: manufacturing the quaternary mirror of the OWL project", Proc. SPIE 4003, Optical Design, Materials, Fabrication, and Maintenance, (20 July 2000); https://doi.org/10.1117/12.391528

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