An Efficient Correction Algorithm for Eliminating Image Misalignment Effects on Co-Phasing Measurement Accuracy for Segmented Active Optics Systems

	An Efficient Correction Algorithm for Eliminating Image Misalignment Effects on Co-Phasing Measurement Accuracy for Segmented Active Optics Systems
	Yue, D.; S. Y. Xu; H. T. Nie and Z. Y. Wang
	2016
发表期刊	Plos One
卷号	11 期号:3
摘要	A novel three-dimensional (3D) shape measuring method based on phase measuring deflectometry (PMD) is presented, which can be used to measure the aspheric mirror during the stages of fine grinding and the beginning of polish. The proposed method measures the absolute height and slope of the specular surface with incidence ray, camera pinhole and dummy assistant surfaces. During the measurement, a camera with an external stop is used to realize pinhole camera model. The external stop represents the position of the camera and the incidence ray corresponding to the pixels of the camera can be obtained by moving LCD screen once. The procedure of the test is simple and the result is believable because it has no restrict requirements for the experimental devices and no need of other auxiliary devices. What's more, this method measures the specular surface with dummy auxiliary surfaces instead of the intersection of the incidence ray and the camera ray. So there is no need to calibrate the camera ray. This method can be used to test the specular surface with high precision because the calibration error has little effect on the result of the testing. Computer simulation and experiment validate the feasibility of the proposed method. 2016, Chinese Laser Press. All right reserved.
文章类型	期刊
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57391
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Yue, D.,S. Y. Xu,H. T. Nie and Z. Y. Wang. An Efficient Correction Algorithm for Eliminating Image Misalignment Effects on Co-Phasing Measurement Accuracy for Segmented Active Optics Systems[J]. Plos One,2016,11(3).
APA	Yue, D.,S. Y. Xu,&H. T. Nie and Z. Y. Wang.(2016).An Efficient Correction Algorithm for Eliminating Image Misalignment Effects on Co-Phasing Measurement Accuracy for Segmented Active Optics Systems.Plos One,11(3).
MLA	Yue, D.,et al."An Efficient Correction Algorithm for Eliminating Image Misalignment Effects on Co-Phasing Measurement Accuracy for Segmented Active Optics Systems".Plos One 11.3(2016).

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