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Proceedings Paper

Optical design for large depth of field
Author(s): Yang Shen; Hu Wang; Pan Yue; Yaoke Xue; Jie Liu; Shuifu Ye
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Paper Abstract

Optical system with large depth of field and large field of view has been designed. To enforce optical system with focal length of 6 mm to imaging the object with object length of 200mmm-1200mm, accord to the equation of depth of field, in case of the CCD sensor with pixel of 5.5umx 5.5um square area, the entrance pupil diameter to ideal imaging will be 0.423mm. To enlarge the modulation transfer function (MTF) at spatial frequency of 90 lp/mm, the entrance pupil diameter is enlarged to 1mm.After design and optimization, with field of view of 80°, within object length of 200mm - 1200mm, the optical system can imaging well, the modulation transfer function (MTF) at spatial frequency of 90lp/mm is larger than 0.1, the distortion of full field of viewed is less than 3%.The optical system can be widely used in machine vision, surveillance cameras, etc.

Paper Details

Date Published: 26 January 2016
PDF: 6 pages
Proc. SPIE 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015, 97962Q (26 January 2016); doi: 10.1117/12.2229621
Show Author Affiliations
Yang Shen, Xi'an Institute of Optics and Precision Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Hu Wang, Xi'an Institute of Optics and Precision Mechanics (China)
Pan Yue, Xi'an Institute of Optics and Precision Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Yaoke Xue, Xi'an Institute of Optics and Precision Mechanics (China)
Jie Liu, Xi'an Institute of Optics and Precision Mechanics (China)
Shuifu Ye, Xi'an Institute of Optics and Precision Mechanics (China)


Published in SPIE Proceedings Vol. 9796:
Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015
Weimin Bao; Yueguang Lv, Editor(s)

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