Volume 14 Issue 5
Sep.  2021
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LIU Guang-xing, ZHANG Yang, ZHU Hai-long, YIN Huan-cai, TANG Yu-guo. Objective lens design with off-axis three-mirror system for large field of view biological imaging analyzer[J]. Chinese Optics, 2021, 14(5): 1177-1183. doi: 10.37188/CO.2021-0020
Citation: LIU Guang-xing, ZHANG Yang, ZHU Hai-long, YIN Huan-cai, TANG Yu-guo. Objective lens design with off-axis three-mirror system for large field of view biological imaging analyzer[J]. Chinese Optics, 2021, 14(5): 1177-1183. doi: 10.37188/CO.2021-0020

Objective lens design with off-axis three-mirror system for large field of view biological imaging analyzer

doi: 10.37188/CO.2021-0020
Funds:  Supported by National key Research and Development Program of China (No. 2017YFF0108603); Special Fund Project for High-tech Industrialization of Science and Technology Coorperation between Jilin-Province and CAS (No. 2020SYHZ0027); Science and Technology Project of Suzhou (No. SYS2018101)
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  • Corresponding author: tangyg@sibet.ac.cn
  • Received Date: 22 Jan 2021
  • Rev Recd Date: 22 Feb 2021
  • Available Online: 12 May 2021
  • Publish Date: 18 Sep 2021
  • The large field of view bio-imaging analyzer can quickly and accurately detect rare cells and trace pathogenic microorganisms, playing an extremely important role in life sciences, food and drug testing, environmental safety, etc.. Based on the theory of coaxial three-mirror imaging, a large field of view biological imaging analyzer was designed by means of an coaxial three-dimensional objective lens as the core component for imaging analysis. It has a spectral range of 350~1100 nm, a magnification β=−1, a field of view of 150 mm×20 mm and NA=0.1. The root mean square of the dot column diameter is less than 3.5 μm. At the 178 lp/mm spatial cutoff frequency, the MTF mean of the full field of view is greater than 0.35 and the distortion is zero. The imaging system has a large field of view and high resolution, and the detection rate of the biological imaging analyzer system with a large field of view is 98%. The proposed objective lens is of good quality and can meet the application requirements.

     

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