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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 25 — Dec. 8, 2008
  • pp: 20345–20353

The misalignment induced aberrations of TMA telescopes

Kevin P. Thompson, Tobias Schmid, and Jannick P. Rolland  »View Author Affiliations

Optics Express, Vol. 16, Issue 25, pp. 20345-20353 (2008)

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The next major space-borne observatory, the James Webb Space Telescope, will be a 6.6M field-biased, obscured, three-mirror anastigmat (TMA). Over the used field of view, the performance of TMA telescopes is dominated by 3rd order misalignment aberrations. Here it is shown that two dominant 3rd order misalignment aberrations arise for any TMA telescope. One aberration, field constant 3rd order coma is a well known misalignment aberration commonly seen in two-mirror Ritchey Chretien telescopes. The second aberration, field-asymmetric, field-linear, 3rd order astigmatism is a new and unique image orientation dependence with field derived here for the first time using nodal aberration theory.

© 2008 Optical Society of America

OCIS Codes
(220.1010) Optical design and fabrication : Aberrations (global)
(220.1140) Optical design and fabrication : Alignment

ToC Category:
Optical Design and Fabrication

Original Manuscript: October 6, 2008
Revised Manuscript: November 8, 2008
Manuscript Accepted: November 11, 2008
Published: November 24, 2008

Kevin P. Thompson, Tobias Schmid, and Jannick P. Rolland, "The misalignment induced aberrations of TMA telescopes," Opt. Express 16, 20345-20353 (2008)

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