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	Absolute testing of freeform lens
	Xin, Jia; Tingwen, Xing
	2013
会议名称	Proceedings of SPIE: Optifab 2013
会议日期	2013
卷号	8884
页码	888429
中文摘要	The absolute testing method can be used to test the freeform lens. There are some spatial frequencies terms can't be getting by the traditional absolute testing method such as even and odd functions method, rotation shear method, rotated equally spaced position method. In this paper we will show the losing terms in the traditional method. In this paper the freeform surface is created by 300th Zernike polynomials. The freeform lens is based on the flat lens. We use the Zernike polynomial to simulate the two flats and use the freeform surface as the three flat. According to the three flat absolute testing methods, we can simulate the testing result. The freeform flat which we use is polishing by the ion figuring machine of NTG. © 2013 SPIE.
英文摘要	The absolute testing method can be used to test the freeform lens. There are some spatial frequencies terms can't be getting by the traditional absolute testing method such as even and odd functions method, rotation shear method, rotated equally spaced position method. In this paper we will show the losing terms in the traditional method. In this paper the freeform surface is created by 300th Zernike polynomials. The freeform lens is based on the flat lens. We use the Zernike polynomial to simulate the two flats and use the freeform surface as the three flat. According to the three flat absolute testing methods, we can simulate the testing result. The freeform flat which we use is polishing by the ion figuring machine of NTG. © 2013 SPIE.
收录类别	EI
学科主题	Engineering - Measurements - Molecular physics - Optical testing
语种	英语
ISSN号	0277786X
内容类型	会议论文
源URL	[http://ir.ioe.ac.cn/handle/181551/7482]
专题	光电技术研究所_应用光学研究室（二室）
作者单位	Lab of Applied Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
推荐引用方式 GB/T 7714	Xin, Jia,Tingwen, Xing. Absolute testing of freeform lens[C]. 见:Proceedings of SPIE: Optifab 2013. 2013.

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