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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 32 — Nov. 10, 2009
  • pp: 6324–6331

Systematic errors analysis for a large dynamic range aberrometer based on aberration theory

Peng Wu, Sheng Liu, Edward DeHoog, and Jim Schwiegerling  »View Author Affiliations


Applied Optics, Vol. 48, Issue 32, pp. 6324-6331 (2009)
http://dx.doi.org/10.1364/AO.48.006324


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Abstract

In Ref. [1], it was demonstrated that the significant systematic errors of a type of large dynamic range aberrometer are strongly related to the power error (defocus) in the input wavefront. In this paper, a generalized theoretical analysis based on vector aberration theory is presented, and local shift errors of the SH spot pattern as a function of the lenslet position and the local wavefront tilt over the corresponding lenslet are derived. Three special cases, a spherical wavefront, a crossed cylindrical wavefront, and a cylindrical wavefront, are analyzed and the possibly affected Zernike terms in the wavefront reconstruction are investigated. The simulation and experimental results are illustrated to verify the theoretical predictions.

© 2009 Optical Society of America

OCIS Codes
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(330.7327) Vision, color, and visual optics : Visual optics, ophthalmic instrumentation

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: September 2, 2009
Manuscript Accepted: October 6, 2009
Published: November 6, 2009

Virtual Issues
Vol. 4, Iss. 13 Virtual Journal for Biomedical Optics

Citation
Peng Wu, Sheng Liu, Edward DeHoog, and Jim Schwiegerling, "Systematic errors analysis for a large dynamic range aberrometer based on aberration theory," Appl. Opt. 48, 6324-6331 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-32-6324


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References

  1. P. Wu, E. DeHoog, and J. Schwiegerling, “Systematic error of a large dynamic range aberrometer,” Appl. Opt. (to be published).
  2. J. Liang, B. Grimm, S. Goelz, and J. F. Bille, “Objective measurement of wave aberrations of the human eye with the use of a Hartmann-Shack wave-front sensor,” J. Opt. Soc. Am. A 11, 1949-1957 (1994). [CrossRef]
  3. J. Schwiegerling, Field Guide to Visual and Ophthalmic Optics (SPIE Press, 2004). [CrossRef]
  4. J. M. Geary, Introduction to Wavefront Sensors (SPIE Press, 1995). [CrossRef]
  5. R. Shack, class notes of Opti518 at Optical Science College, University of Arizona.
  6. W. T. Welford, Aberrations of Optical Systems (Taylor & Francis, 1986).
  7. J. Sasian, “How to approach the design of a bilateral symmetric optical system,” Opt. Eng. 33 (6), 2045-2061(1994). [CrossRef]
  8. K. P. Thompson, “Description of the third-order optical aberrations of near-circular pupil optical systems without symmetry,” J. Opt. Soc. Am. A 22, 1389-1401 (2005). [CrossRef]
  9. W. Kaplan, “The directional derivative,” in Advanced Calculus, 4th ed. (Addison-Wesley, 1991), pp 135-138.
  10. L. N. Thibos, R. A. Applegate, J. Schwiegerling, and R. Webb, “Standards for reporting the optical aberrations of eye,” in Vision Science and Its Applications, OSA Technical Digest (Optical Society of America, 2000), paper SuC1.

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