한국정보디스플레이학회:학술대회논문집
- 2005.07a
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- Pages.528-530
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- 2005
A New Shack-Hartmann Type Wavefront Sensor Using Liquid Crystal Panels
- Xiaoxi, Chen (Dept. of Optical Engineering, Zhejiang University) ;
- Xu, Liu (Dept. of Optical Engineering, Zhejiang University)
- Published : 2005.07.19
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 use 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.
Keywords