Algorithm for Reconstructing the Whole-Aperture Wavefront from Annular Subaperture Hartmann-Shack Gradient Data

Hongyan, 徐洪艳 Xu; Hao, 鲜浩 Xian; Yudong, 张雨东 Zhang

doi:10.3788/aos20113101.112005

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2014

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“…较大偏离量凸非球面光学元件实现了拼接检测 [4] 。国内自 20 世纪 90 年代起也有多家单位对此进行了研究，其中国防科技大学从几何学观点对拼接算法进行了研究，提出了子孔径拼接算法 [5] ；成都光电所对环形子孔径拼接检测进行了理论研究，并提出了相应的环形子孔径拼接算法 [6][7][8]…”

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Research on Sub-Aperture Stitching Testing Technology Based on Iterative Gradient Algorithm

Ligong¹,

Lisong²,

Xiaokun³

et al. 2014

激光与光电子学进展

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To accomplish the sub-aperture stitching testing for large aperture flat mirror under considerable adjustment error, we establish a reasonable stitching algorithm and mathematical model based on iterative gradient algorithm. At the same time, relative program is written for stitching. Combined with engineering examples, we measure a F800mm flat mirror with a F600mm interferometer in stitching method. In the measurement, we accomplish the alignment between sub-apertures with targets and the stitching result is smooth. Experimental results show that stitching measurements of large aperture flat mirror could be well down with the this algorithm under considerable adjustment errors.

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