Volume 13 Issue 4
Aug.  2020
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Chinese Optics  > 2020  >  13(4): 814-821.
CHEN Wei-lin, CHANG Jun, ZHAO Xue-hui, JIN Hui. Optical system design and simulation of a wide-area fundus camera[J]. Chinese Optics, 2020, 13(4): 814-821. doi: 10.37188/CO.2020-0066
Citation: CHEN Wei-lin, CHANG Jun, ZHAO Xue-hui, JIN Hui. Optical system design and simulation of a wide-area fundus camera[J]. Chinese Optics, 2020, 13(4): 814-821. doi: 10.37188/CO.2020-0066
shu

Optical system design and simulation of a wide-area fundus camera

  • 1.

    School of Optics and Photonics, Beijing Institute of Technology, Key Laboratory of Photoelectronic Imaging Technology and Systems of the Ministry of Education of China, Beijing 100081, China

  • 2.

    Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Funds:  Supported by National Natural Science Foundation of China (No.61471039)
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  • Corresponding author: jinhui@ciomp.ac.cn
  • Received Date: 17 Apr 2020
  • Rev Recd Date: 27 May 2020
  • Publish Date: 01 Aug 2020
    Abstract
  • A wide-area fundus camera used for screening the retinae of infants was designed. In this paper, the design methods of the device’s illuminating and imaging systems were investigated. Based on James Polans’ wide-field human eye model and a set of ophthalmic anatomy data, an infant eye model was established. Then, a tapered fiber scheme was proposed for wide area illumination. Finally, the design method of a wide-area fundus camera imaging system, including the contact lens and relay lens, is introduced. The design example shows that the Field Of View (FOV) of the wide-area fundus camera can reach 130°, and the object resolution of the fundus can reach 10 μm. The design results meet the national standards YY0634-2008 for fundus imaging equipment and meet the requirements for infant retina screening.

     

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