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

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

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4003...34f&link_type=abstract

Proc. SPIE Vol. 4003, p. 34-42, Optical Design, Materials, Fabrication, and Maintenance, Philippe Dierickx; Ed.

Physics

Optics

Scientific paper

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.

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