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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 19 — Jul. 1, 2002
  • pp: 4013–4023

Liquid-Crystal Adaptive Optics Based on Feedback Interferometry for High-Resolution Retinal Imaging

Tomohiro Shirai  »View Author Affiliations


Applied Optics, Vol. 41, Issue 19, pp. 4013-4023 (2002)
http://dx.doi.org/10.1364/AO.41.004013


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Abstract

A novel, to our knowledge, adaptive optical imaging system for high-resolution retinal imaging is described. The system is based on a feedback interferometer, in which two-dimensional output fringe intensity from a Mach-Zehnder interferometer with large radial shear is fed back, with the help of a video projector connected with a CCD camera, to an optically addressed phase-only liquid-crystal spatial light modulator. Experiments to verify the system performance have been conducted by use of an artificial eye consisting of a lens, an aberration plate, and a resolution test target. We observed that an image of the test target (mimicking a retina) blurred by the aberration plate (mimicking ocular aberrations) was successfully restored immediately after our adaptive optics system was activated.

© 2002 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(230.6120) Optical devices : Spatial light modulators

Citation
Tomohiro Shirai, "Liquid-Crystal Adaptive Optics Based on Feedback Interferometry for High-Resolution Retinal Imaging," Appl. Opt. 41, 4013-4023 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-19-4013

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