Systematic error of a large dynamic range aberrometer
Applied Optics, Vol. 48, Issue 32, pp. 6376-6380 (2009)
http://dx.doi.org/10.1364/AO.48.006376
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Abstract
Shack–Hartmann aberrometers are routinely used for measuring ocular aberrations. In one configuration, the intermediate images of the Shack–Hartmann spots formed by the lenslet array are relayed by an imaging lens onto a sensor. A systematic introduction of spherical aberration that is strongly related to the power error (defocus) of the incident wavefront is observed in this configuration. We found that the largest component of this error is induced by the pupil aberration of the imaging relay lens. Some simulations and experimental results are demonstrated.
© 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: June 25, 2009
Revised Manuscript: October 7, 2009
Manuscript Accepted: October 21, 2009
Published: November 9, 2009
Virtual Issues
Vol. 4, Iss. 13 Virtual Journal for Biomedical Optics
Citation
Peng Wu, Edward DeHoog, and Jim Schwiegerling, "Systematic error of a large dynamic range aberrometer," Appl. Opt. 48, 6376-6380 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-48-32-6376
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