Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Novel methods to improve the measurement accuracy and the dynamic range of Shack-Hartmann wavefront sensor | |
Yu L.; Xia M. L.; Xie H. S.; Xuan L.; Ma J. | |
2014 | |
发表期刊 | Journal of Modern Optics |
ISSN | ISBN/0950-0340 |
卷号 | 61期号:9页码:703-715 |
摘要 | As a wavefront sensor, the Shack-Hartmann wavefront sensor plays an important role in the wavefront measurement of human eyes. However, the low measurement accuracy and the small dynamic range of Shack-Hartmann wavefront sensor limit its application. In this paper, we present a matched-filter algorithm to improve the measurement accuracy by more than an order of magnitude. Moreover, we also introduce a new algorithm to extend the dynamic range of Shack-Hartmann wavefront sensor. With this method, the recorded spots of Shack-Hartmann wavefront sensor are not constrained to stay in the corresponding pixel area of the microlens. The result shows that the dynamic range can be extended from 57.1 to 160% for the first 24 items of Zernike wavefronts, respectively. The improvement by our methods makes the Shack-Hartmann more suitable for the measurement of highly aberrated eyes. |
收录类别 | SCI ; EI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/44196 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Yu L.,Xia M. L.,Xie H. S.,et al. Novel methods to improve the measurement accuracy and the dynamic range of Shack-Hartmann wavefront sensor[J]. Journal of Modern Optics,2014,61(9):703-715. |
APA | Yu L.,Xia M. L.,Xie H. S.,Xuan L.,&Ma J..(2014).Novel methods to improve the measurement accuracy and the dynamic range of Shack-Hartmann wavefront sensor.Journal of Modern Optics,61(9),703-715. |
MLA | Yu L.,et al."Novel methods to improve the measurement accuracy and the dynamic range of Shack-Hartmann wavefront sensor".Journal of Modern Optics 61.9(2014):703-715. |
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