Design of CGH for testing large off-axis asphere by considering mapping distortion

	Design of CGH for testing large off-axis asphere by considering mapping distortion
	Li, M.; X. Luo; D.-L. Xue; J.-L. Zhao; L.-G. Zheng and X.-J. Zhang
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 期号:5 页码:1246-1253
摘要	In the process of an asphere fabricating, the part with large mapping distortion in the large caliber off-axis asphere may not be measured by an interferometer due to larger interferometric fringe density. To solve this problem, the parameter named related distortion was used to describe the mapping distortion quantitatively, and a Computer Generated Hologram (CGH) with higher freedom and stronger compensation ability was designed. By taking the mapping distortion distribution into account, the method selected a proper path and allowed all the aspheric surface to have smaller mapping distortion in the design of the CGH. With the method, a CGH with proper paths was designed for testing the 1.45 m off-axis asphere, by which the full map distortion of the system is less than that of the traditional null-lens compensator. The test experiment shows that the designed CGH can test the full map error of the off-axis asphere, which verifies the validity and practicability of the proposed CGH design method and demonstrates that designed CGH with considering test mapping distortion has solved the problem as mentioned above. By this method, the map errors of 1.45 m diameter off-axis asphere are 0.374 PV and 0.023 RMS now. , 2015, Chinese Academy of Sciences. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56052
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li, M.,X. Luo,D.-L. Xue,et al. Design of CGH for testing large off-axis asphere by considering mapping distortion[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(5):1246-1253.
APA	Li, M.,X. Luo,D.-L. Xue,J.-L. Zhao,&L.-G. Zheng and X.-J. Zhang.(2015).Design of CGH for testing large off-axis asphere by considering mapping distortion.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(5),1246-1253.
MLA	Li, M.,et al."Design of CGH for testing large off-axis asphere by considering mapping distortion".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.5(2015):1246-1253.

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