Measurement of mild asphere by digital plane

	Measurement of mild asphere by digital plane
	Wang X.
	2014
发表期刊	中文 Optics Letters
ISSN	ISBN/16717694
卷号	12
摘要	In order to test mild aspheric surface directly without other null optics, the digital plane method is proposed. When departure of the tested aspheric surface is mild, a sphere mirror can be used as the reference surface. The phase distribution can be measured swiftly by the digital interferometer. The surface error can be obtained by subtracting the theory wavefront error (the value of the digital plane) from the phase data and eliminating the translation errors through least-squares fitting. The basic principle and theory of this method are analyzed and researched, and the testing model and flow chart are established. Meanwhile the experiment is carried out with a mild aspheric mirror by this method, the PV and RMS of the surface error are 0.173 and 0.018 ( is 632.8 nm), respectively. We also design and make a null corrector to the asphere for contrast, the differences in PV and RMS error between them are 0.026 and 0.001, respectively.
收录类别	EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44147
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang X.. Measurement of mild asphere by digital plane[J]. 中文 Optics Letters,2014,12.
APA	Wang X..(2014).Measurement of mild asphere by digital plane.中文 Optics Letters,12.
MLA	Wang X.."Measurement of mild asphere by digital plane".中文 Optics Letters 12(2014).

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