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Proceedings Paper

A new type of Shack-Hartmann wavefront sensor using liquid crystal display
Author(s): Xiaoxi Chen; Xu Liu
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Paper Abstract

In this paper, we present a new and practical method for achieving real-time wavefront measurement, dramatically increasing the resolution, dynamic range of Shack-Hartmann wavefront sensor and improving the wavefront reconstruction quality. In proposal method, a liquid crystal display panel (LCD) for the generation of an array of Fresnel microlenses is used instead of the static microlens array of the conventional Shack-Hartmann type sensor An off-axis holographic microlens array is designed instead of the normal microlens array to increase the effective array and then the dynamic range. The focus properties of the off-axis lens are studied.

Paper Details

Date Published: 9 December 2005
PDF: 6 pages
Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60240S (9 December 2005); doi: 10.1117/12.666834
Show Author Affiliations
Xiaoxi Chen, Zhejiang Univ. (China)
Xu Liu, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 6024:
ICO20: Optical Devices and Instruments
James C. Wyant; X. J. Zhang, Editor(s)

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