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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 21 — Jul. 20, 1998
  • pp: 4656–4662

Design of an adaptive secondary mirror: a global approach

Guido Brusa and Ciro Del Vecchio  »View Author Affiliations


Applied Optics, Vol. 37, Issue 21, pp. 4656-4662 (1998)
http://dx.doi.org/10.1364/AO.37.004656


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Abstract

We present the mechanical and actuator design of an adaptive secondary mirror that matches the optical requirements of the active and adaptive corrections. Conceived for the particular implementation for the 6.5-m conversion of the multiple-mirror telescope, with small variations of the input parameters this study is suitable for applications for telescopes of the same class. We found that a three-layer structure, i.e., a thin deformable shell, a thick reference plate, and a third plate that acts as actuator support and heat sink, is able to provide the required mechanical stability and actuator density. We also found that a simple electromagnetic actuator can be used. This actuator, when optimized, will dissipate a typical power of a few tenths of watts.

© 1998 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(230.4040) Optical devices : Mirrors

History
Original Manuscript: July 17, 1997
Revised Manuscript: December 1, 1997
Published: July 20, 1998

Citation
Guido Brusa and Ciro Del Vecchio, "Design of an adaptive secondary mirror: a global approach," Appl. Opt. 37, 4656-4662 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-21-4656

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