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Proceedings Paper

Research on the liquid crystal adaptive optics system for human retinal imaging
Author(s): Lei Zhang; Shoufeng Tong; Yansong Song; Xin Zhao
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Paper Abstract

The blood vessels only in Human eye retinal can be observed directly. Many diseases that are not obvious in their early symptom can be diagnosed through observing the changes of distal micro blood vessel. In order to obtain the high resolution human retinal images,an adaptive optical system for correcting the aberration of the human eye was designed by using the Shack-Hartmann wavefront sensor and the Liquid Crystal Spatial Light Modulator(LCLSM) .For a subject eye with 8m-1 (8D)myopia, the wavefront error is reduced to 0.084 λ PV and 0.12 λRMS after adaptive optics(AO) correction ,which has reached diffraction limit.The results show that the LCLSM based AO system has the ability of correcting the aberration of the human eye efficiently,and making the blurred photoreceptor cell to clearly image on a CCD camera.

Paper Details

Date Published: 31 December 2013
PDF: 7 pages
Proc. SPIE 9042, 2013 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 904213 (31 December 2013); doi: 10.1117/12.2037069
Show Author Affiliations
Lei Zhang, Changchun Univ. of Science and Technology (China)
Shoufeng Tong, Changchun Univ. of Science and Technology (China)
Yansong Song, Changchun Univ. of Science and Technology (China)
Xin Zhao, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9042:
2013 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Xiaocong Yuan; Yunlong Sheng; Kimio Tatsuno, Editor(s)

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