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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 16 — Jun. 1, 2010
  • pp: 3199–3207

Active optics control of VST telescope secondary mirror

Pietro Schipani, Sergio D’Orsi, Davide Fierro, and Laurent Marty  »View Author Affiliations

Applied Optics, Vol. 49, Issue 16, pp. 3199-3207 (2010)

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In telescopes based on active optics, defocus and coma are usually compensated for by secondary mirror movements. They are performed at the Very Large Telescope Survey Telescope (VST) with a hexapod—a parallel robot with six degrees of freedom positioning capability. We describe the application of the two-mirror telescope theory to the VST case and the solutions adopted for the hexapod control. We present the results of performance and reliability tests performed both in the laboratory and at the telescope.

© 2010 Optical Society of America

OCIS Codes
(220.1000) Optical design and fabrication : Aberration compensation
(220.1140) Optical design and fabrication : Alignment
(350.1260) Other areas of optics : Astronomical optics
(350.1270) Other areas of optics : Astronomy and astrophysics
(110.1080) Imaging systems : Active or adaptive optics
(220.1080) Optical design and fabrication : Active or adaptive optics

ToC Category:
Imaging Systems

Original Manuscript: March 25, 2010
Revised Manuscript: May 10, 2010
Manuscript Accepted: May 10, 2010
Published: May 31, 2010

Pietro Schipani, Sergio D’Orsi, Davide Fierro, and Laurent Marty, "Active optics control of VST telescope secondary mirror," Appl. Opt. 49, 3199-3207 (2010)

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