Liquid Crystal based adaptive optics system to compensate both low and high order aberrations in a model eye

Discontinued Devices LC-R 2500 Spatial Light Modulators
Adaptive Optics / Wavefront Control Imaging/ Image Processing
Published on:
Authors: Quanquan Mu, Zhaoliang Cao, Dayu Li, Lifa Hu, and Li Xuan
Abstract:

“Based on a simple eye model system, a high resolution adaptive optics retina imaging system was built to demonstrate the availability of using liquid crystal devices as a wave-front corrector for both low and high order aberrations. Myopia glass was used to introduce large low order aberrations. A fiber bundle was used to simulate the retina. After correction, its image at different diopters became very clear. We can get a root mean square (RMS) correction precision of lower than 0.049λ (λ=0.63μm) for over to 10 diopters and the modulation transfer function (MTF) retains 511p/mm, which is nearly the diffraction limited resolution for a 2.7mm pupil diameter. The closed loop bandwidth was nearly 4 Hz, which is capable to track most of the aberration dynamics in a real eye.”

Open Access

Publication: Optics Express
Issue/Year: Optics Express, Vol. 15, Issue 4, pp. 1946-1953
DOI: 10.1364/OE.15.001946
Link: https://doi.org/10.1364/OE.15.001946

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