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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 21 — Oct. 20, 2003
  • pp: 2704–2716

Very fast wave-front measurements at the human eye with a custom CMOS-based Hartmann-Shack sensor

Thomas Nirmaier, Gopal Pudasaini, and Josef Bille  »View Author Affiliations


Optics Express, Vol. 11, Issue 21, pp. 2704-2716 (2003)
http://dx.doi.org/10.1364/OE.11.002704


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Abstract

We describe what we believe to be the first wave-front measurements of the human eye at a sampling rate of 300 Hz with a custom Hartmann–Shack wave-front sensor that uses complementary metal-oxide semiconductor (CMOS) technology. This sensor has been developed to replace standard charge-coupled device (CCD) cameras and the slow software image processing that is normally used to reconstruct the wave front from the focal-plane image of a lenslet array. We describe the sensor’s principle of operation and introduce the performance with static wave fronts. The system has been used to measure human-eye wave-front aberrations with a bandwidth of 300 Hz, which is approximately an order of magnitude faster than with standard software-based solutions. Finally, we discuss the measured data and consider further improvements to the system.

© 2003 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(230.2090) Optical devices : Electro-optical devices
(330.5370) Vision, color, and visual optics : Physiological optics

ToC Category:
Research Papers

History
Original Manuscript: September 3, 2003
Revised Manuscript: October 7, 2003
Published: October 20, 2003

Citation
Thomas Nirmaier, Gopal Pudasaini, and Josef Bille, "Very fast wave-front measurements at the human eye with a custom CMOS-based Hartmann�??Shack sensor," Opt. Express 11, 2704-2716 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-21-2704


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