Optical Transfer Function (OTF) Measurement Technique Application In China

Zhang Bing-Xun; Cao Gen-Rui

doi:10.1117/12.931833

29 October 1981 Optical Transfer Function (OTF) Measurement Technique Application In China

Zhang Bing-Xun, Cao Gen-Rui

Proceedings Volume 0274, Assessment of Imaging Systems II; (1981) https://doi.org/10.1117/12.931833
Event: Assessment of Imaging Systems: Visible and Infrared, 1981, Reading, United Kingdom

Abstract

Classical and subjective methods, such as resolving power tests, star tests and aberra-tion measurements and the like, have been used in the inspection and evaluation of imaging system performance in China so far for a long time. Beginning from the 1960s,situation in this field is changing. In this paper some types of NSF and OTF measuring equipments developed in China within about 10 years after 1965 are briefly described. Performance of some higher precision OTF measuring equipment is given in some detail. In 1976, comparative MTF measurements for two standard lenses among some labo-ratories using different arrangements were carried out, and results of this study are given. Some discussions are given about problems concerning the assessment methods and the selection of characteristic spatial frequency. The paper also gives a survey about our practice in simplified NSF test conditions and proposed criteria of image quality for photographic lenses.

Citation Download Citation

Zhang Bing-Xun and Cao Gen-Rui "Optical Transfer Function (OTF) Measurement Technique Application In China", Proc. SPIE 0274, Assessment of Imaging Systems II, (29 October 1981); https://doi.org/10.1117/12.931833

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