Calibration for the errors resulted from aberration in long focal length measurement

Jiang Yao; Jia Luo; Fan He; Jian Bai; Kaiwei Wang; Xiyun Hou; Changlun Hou

doi:10.1117/12.2069978

18 September 2014 Calibration for the errors resulted from aberration in long focal length measurement

Jiang Yao, Jia Luo, Fan He, Jian Bai, Kaiwei Wang, Xiyun Hou, Changlun Hou

Proceedings Volume 9282, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 92821S (2014) https://doi.org/10.1117/12.2069978
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

In this paper, a high-accuracy calibration method for errors resulted from aberration in long focal length measurement, is presented. Generally, Gaussian Equation is used for calculation without consideration of the errors caused by aberration. However, the errors are the key factor affecting the accuracy in the measurement system of a large aperture and long focal length lens. We creatively introduce an effective way to calibrate the errors, with detailed analysis of the long focal length measurement based on divergent light and Talbot interferometry. Aberration errors are simulated by Zemax. Then, we achieve auto-correction with the help of Visual C++ software and the experimental results reveal that the relative accuracy is better than 0.01%.By comparing modified values with experimental results obtained in knife-edge testing measurement, the proposed method is proved to be highly effective and reliable.

Citation Download Citation

Jiang Yao, Jia Luo, Fan He, Jian Bai, Kaiwei Wang, Xiyun Hou, and Changlun Hou "Calibration for the errors resulted from aberration in long focal length measurement", Proc. SPIE 9282, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 92821S (18 September 2014); https://doi.org/10.1117/12.2069978

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