A new type of Shack-Hartmann wavefront sensor using liquid crystal display

Xiaoxi Chen; Xu Liu

doi:10.1117/12.666834

9 December 2005 A new type of Shack-Hartmann wavefront sensor using liquid crystal display

Xiaoxi Chen, Xu Liu

Author Affiliations +

Proceedings Volume 6024, ICO20: Optical Devices and Instruments; 60240S (2005) https://doi.org/10.1117/12.666834
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

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.

Citation Download Citation

Xiaoxi Chen and Xu Liu "A new type of Shack-Hartmann wavefront sensor using liquid crystal display", Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60240S (9 December 2005); https://doi.org/10.1117/12.666834

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