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Simplified compact fisheye lens challenges and design

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Abstract

A simplified and compact F/2.8 fisheye lens system comprising only 6 lens elements with just one aspheric surface was successfully designed. 160° full field of view, and 11.6 mm lens total tracking length were intended. We further described the ultra-wide angle lens system design challenges and their overcome problems. Our lens system performance evaluation was done by ZEMAX optical design software. A perfect lateral color and axial chromatic aberration correction were achieved, and the relative illumination is above 85 % across the entire field of view with an admirable corrected field curvature along with fθ distortion less than 0.15 %. Our lens modulation transfer function produces a high-resolution projection with brightness uniformity for endoscopic, security, and monitoring applications.

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Acknowledgments

We would like to thank the National Natural Science Foundation of China (NSFC, No: 61377015), the Doctoral Foundation of Ministry of Education (No: 20103219130014) and Open Foundation of Chinese Academy of Science (CAS) Key Laboratory (No: 2008DP173445) for financial support.

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Authors and Affiliations

  1. Department of Optical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, Jiangsu, China, 210094

    Ahmed Mahmoud Samy & Zhishan Gao

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  1. Ahmed Mahmoud Samy
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  2. Zhishan Gao
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Correspondence to Zhishan Gao.

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Samy, A.M., Gao, Z. Simplified compact fisheye lens challenges and design. J Opt 44, 409–416 (2015). https://doi.org/10.1007/s12596-015-0260-y

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  • DOI: https://doi.org/10.1007/s12596-015-0260-y

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