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Proceedings Paper

CCD based digital optical transfer function testing instrument
Author(s): Xinhua Chen; Yuheng Chen; Liangjun Zhang; Weimin Shen
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Paper Abstract

As the development of image processing and area array detectors, CCD has been used widely in optical transfer function (OTF) measurement for it can realize fast measurement and avoid scanning operation. An OTF testing instrument using CCD camera is introduced in this paper. This instrument works in visible wavelength with 200mm entrance pupil diameter. The highest spatial frequency this instrument can measure is up to 200lp/mm. This instrument is composed of four parts, that is, object generator, image analyzer, control system and software. A 50mm plano-convex lens is used to calibrate this OTF testing instrument. According to the calibration results, measurement error of this testing instrument is less than 0.04, while its repeatability is less than 0.03.

Paper Details

Date Published: 1 December 2009
PDF: 7 pages
Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 75062J (1 December 2009); doi: 10.1117/12.837889
Show Author Affiliations
Xinhua Chen, Soochow Univ. (China)
Jiangsu Key Lab. of Modern Optical Technology (China)
Yuheng Chen, Soochow Univ. (China)
Jiangsu Key Lab. of Modern Optical Technology (China)
Liangjun Zhang, Soochow Univ. (China)
Jiangsu Key Lab. of Modern Optical Technology (China)
Weimin Shen, Soochow Univ. (China)
Jiangsu Key Lab. of Modern Optical Technology (China)


Published in SPIE Proceedings Vol. 7506:
2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Kimio Tatsuno, Editor(s)

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