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, Zongxi Song, Wei Gao, Wei Gao, Yan Zhou, Yan Zhou, Feng Liu, 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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