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A novel subaperture stitching method based on monoscopic deflectometry in single point diamond turning is introduced in this study for measuring large-aperture optical surfaces. This method not only solves the phase position deviation between subapertures, but also eliminates the system calibration error. The objective optimization is achieved by utilizing the gradient deviation and form deviation at the overlapped areas of adjacent subapertures. To achieve full-aperture measurement of the SUT, the global gradient is integrated to reconstruct the SUT. Experimental validation confirms the feasibility of the method.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Chen Ting,Wei Wang,Xiangchao Zhang, andMin Xu
"Subaperture stitching measurement of large flat mirror in single point diamond turning", Proc. SPIE 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023), 129760A (29 December 2023); https://doi.org/10.1117/12.3001331
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Chen Ting, Wei Wang, Xiangchao Zhang, Min Xu, "Subaperture stitching measurement of large flat mirror in single point diamond turning," Proc. SPIE 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023), 129760A (29 December 2023); https://doi.org/10.1117/12.3001331