Abstract

We present the nodal aberration field response of Ritchey-Chrétien telescopes to a combination of optical component misalignments and astigmatic figure error on the primary mirror. It is shown that both astigmatic figure error and secondary mirror misalignments lead to binodal astigmatism, but that each type has unique, characteristic locations for the astigmatic nodes. Specifically, the characteristic node locations in the presence of astigmatic figure error (at the pupil) in an otherwise aligned telescope exhibit symmetry with respect to the field center, i.e. the midpoint between the astigmatic nodes remains at the field center. For the case of secondary mirror misalignments, one of the astigmatic nodes remains nearly at the field center (in a coma compensated state) as presented in Optics Express 18, 5282-5288 (2010), while the second astigmatic node moves away from the field center. This distinction leads directly to alignment methods that preserve the dynamic range of the active wavefront compensation component.

© 2010 OSA

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  1. K. P. Thompson, “Description of the third-order optical aberrations of near-circular pupil optical systems without symmetry,” J. Opt. Soc. Am. A 22(7), 1389–1401 (2005).
    [CrossRef] [PubMed]
  2. J. R. Rogers, “Techniques and tools for obtaining symmetrical performance from tilted-component systems,” Opt. Eng. 39(7), 1776–1787 (2000).
    [CrossRef]
  3. K. P. Thompson, T. Schmid, and J. P. Rolland, “The misalignment induced aberrations of TMA telescopes,” Opt. Express 16(25), 20345–20353 (2008).
    [CrossRef] [PubMed]
  4. T. Schmid, K. P. Thompson, and J. P. Rolland, “Misalignment-induced nodal aberration fields in two-mirror astronomical telescopes,” Appl. Opt. 49(16), D131–D144 (2010).
    [CrossRef] [PubMed]
  5. H. H. Hopkins, in The Wave Theory of Aberrations (Oxford on Clarendon Press, 1950).
  6. R. A. Buchroeder, “Tilted component optical systems,” Ph.D. dissertation (University of Arizona, 1976).
  7. R. V. Shack and K. Thompson, “Influence of alignment errors of a telescope system on its aberration field,” Proc. SPIE 251, 146–153 (1980).
  8. T. Schmid, K. P. Thompson, and J. P. Rolland, “A unique astigmatic nodal property in misaligned Ritchey-Chrétien telescopes with misalignment coma removed,” Opt. Express 18(5), 5282–5288 (2010).
    [CrossRef] [PubMed]
  9. B. McLeod, “Collimation of Fast Wide-Field Telescopes,” Publ. Astron. Soc. Pac. 108, 217–219 (1996).
    [CrossRef]
  10. D. L. Terrett and W. J. Sutherland, “The interaction between pointing and active optics on the VISTA Telescope,” presented at SPIE Astronomical Instrumentation, San Diego, CA, USA, 27 June - 2 July 2010.
  11. R. N. Wilson, in Reflecting Telescope Optics II (Springer-Verlag, Berlin, 1999), Chap. 2.
  12. K. P. Thompson, “Aberration Fields in Unobscured Mirror Systems,” J. Opt. Soc. Am. 70, 1603 (1980).
    [CrossRef]
  13. K. P. Thompson, “The aberration fields of optical systems without symmetry”, PhD dissertation, The University of Arizona, College of Optical Sciences, (1980).
  14. C. R. Burch, “On the optical see-saw diagram,” Mon. Not. R. Astron. Soc. 103, 159–165 (1942).
  15. J. C. Wyant, and K. Creath, “Basic Wavefront Aberration Theory for Optical Metrology,” in Applied Optics and Optical Engineering, Vol. XI, Academic Press (1992), Chap. 1.
  16. K. P. Thompson, “Description of the third-order optical aberrations of near-circular pupil optical systems without symmetry: errata,” J. Opt. Soc. Am. A 26(3), 699–699 (2009).
    [CrossRef]
  17. K. P. Thompson, T. Schmid, O. Cakmakci, and J. P. Rolland, “Real-ray-based method for locating individual surface aberration field centers in imaging optical systems without rotational symmetry,” J. Opt. Soc. Am. A 26(6), 1503–1517 (2009).
    [CrossRef] [PubMed]

2010 (2)

2009 (2)

2008 (1)

2005 (1)

2000 (1)

J. R. Rogers, “Techniques and tools for obtaining symmetrical performance from tilted-component systems,” Opt. Eng. 39(7), 1776–1787 (2000).
[CrossRef]

1996 (1)

B. McLeod, “Collimation of Fast Wide-Field Telescopes,” Publ. Astron. Soc. Pac. 108, 217–219 (1996).
[CrossRef]

1980 (2)

K. P. Thompson, “Aberration Fields in Unobscured Mirror Systems,” J. Opt. Soc. Am. 70, 1603 (1980).
[CrossRef]

R. V. Shack and K. Thompson, “Influence of alignment errors of a telescope system on its aberration field,” Proc. SPIE 251, 146–153 (1980).

1942 (1)

C. R. Burch, “On the optical see-saw diagram,” Mon. Not. R. Astron. Soc. 103, 159–165 (1942).

Burch, C. R.

C. R. Burch, “On the optical see-saw diagram,” Mon. Not. R. Astron. Soc. 103, 159–165 (1942).

Cakmakci, O.

McLeod, B.

B. McLeod, “Collimation of Fast Wide-Field Telescopes,” Publ. Astron. Soc. Pac. 108, 217–219 (1996).
[CrossRef]

Rogers, J. R.

J. R. Rogers, “Techniques and tools for obtaining symmetrical performance from tilted-component systems,” Opt. Eng. 39(7), 1776–1787 (2000).
[CrossRef]

Rolland, J. P.

Schmid, T.

Shack, R. V.

R. V. Shack and K. Thompson, “Influence of alignment errors of a telescope system on its aberration field,” Proc. SPIE 251, 146–153 (1980).

Thompson, K.

R. V. Shack and K. Thompson, “Influence of alignment errors of a telescope system on its aberration field,” Proc. SPIE 251, 146–153 (1980).

Thompson, K. P.

Appl. Opt. (1)

J. Opt. Soc. Am. (1)

K. P. Thompson, “Aberration Fields in Unobscured Mirror Systems,” J. Opt. Soc. Am. 70, 1603 (1980).
[CrossRef]

J. Opt. Soc. Am. A (3)

Mon. Not. R. Astron. Soc. (1)

C. R. Burch, “On the optical see-saw diagram,” Mon. Not. R. Astron. Soc. 103, 159–165 (1942).

Opt. Eng. (1)

J. R. Rogers, “Techniques and tools for obtaining symmetrical performance from tilted-component systems,” Opt. Eng. 39(7), 1776–1787 (2000).
[CrossRef]

Opt. Express (2)

Proc. SPIE (1)

R. V. Shack and K. Thompson, “Influence of alignment errors of a telescope system on its aberration field,” Proc. SPIE 251, 146–153 (1980).

Publ. Astron. Soc. Pac. (1)

B. McLeod, “Collimation of Fast Wide-Field Telescopes,” Publ. Astron. Soc. Pac. 108, 217–219 (1996).
[CrossRef]

Other (6)

D. L. Terrett and W. J. Sutherland, “The interaction between pointing and active optics on the VISTA Telescope,” presented at SPIE Astronomical Instrumentation, San Diego, CA, USA, 27 June - 2 July 2010.

R. N. Wilson, in Reflecting Telescope Optics II (Springer-Verlag, Berlin, 1999), Chap. 2.

K. P. Thompson, “The aberration fields of optical systems without symmetry”, PhD dissertation, The University of Arizona, College of Optical Sciences, (1980).

J. C. Wyant, and K. Creath, “Basic Wavefront Aberration Theory for Optical Metrology,” in Applied Optics and Optical Engineering, Vol. XI, Academic Press (1992), Chap. 1.

H. H. Hopkins, in The Wave Theory of Aberrations (Oxford on Clarendon Press, 1950).

R. A. Buchroeder, “Tilted component optical systems,” Ph.D. dissertation (University of Arizona, 1976).

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