11 October 2010 New method to improve measurement accuracy of modulation transfer function
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Abstract
Modulation transfer function (MTF) of optical systems is often derived by taking Fourier transform (FT) of a measured line spread function (LSF). During MTF measurement process, the measurement accuracy of MTF will decrease as a result when LSF computed is not veracity. Based on the model constructed using the variance information of knife-edge and skew of the knife-edge, this paper presents a new method to improve the accuracy of measurement of MTF. The results showed that the new method can improve the accuracy of MTF to 0.01.
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Zongxi Song, Wei Gao, Yan Zhou, Feng Liu, "New method to improve measurement accuracy of modulation transfer function", Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76561N (11 October 2010); doi: 10.1117/12.867707; https://doi.org/10.1117/12.867707
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