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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 6 — Mar. 25, 2013
  • pp: 6851–6865

Two-mirror telescope design with third-order coma insensitive to decenter misalignment

Lucimara Cristina Nakata Scaduto, Jose Sasian, Mario Antonio Stefani, and Jarbas Caiado de Castro Neto  »View Author Affiliations

Optics Express, Vol. 21, Issue 6, pp. 6851-6865 (2013)

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Misalignments always occur in real optical systems. These misalignments do not generate new aberration forms, but they change the aberration field dependence. Two-mirror telescopes have been used in several applications. We analyze a two-mirror telescope configuration that has negligible sensitivity to decenter misalignments. By applying the wave aberration theory for plane-symmetric optical systems it is shown that the asphericity in the secondary mirror, if properly chosen, can compensate for any decenter perturbation allowing third-order coma unchanged across the field of view. For any two-mirror system it is possible to find a configuration in which decenter misalignments do not generate field-uniform coma.

© 2013 OSA

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(080.1010) Geometric optics : Aberrations (global)
(110.6770) Imaging systems : Telescopes
(220.1140) Optical design and fabrication : Alignment

ToC Category:
Optical Design and Fabrication

Original Manuscript: November 21, 2012
Revised Manuscript: January 21, 2013
Manuscript Accepted: February 5, 2013
Published: March 12, 2013

Lucimara Cristina Nakata Scaduto, Jose Sasian, Mario Antonio Stefani, and Jarbas Caiado de Castro Neto, "Two-mirror telescope design with third-order coma insensitive to decenter misalignment," Opt. Express 21, 6851-6865 (2013)

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