Volume 15 Issue 1
Jan.  2022
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ZHU Qin-yu, HAN Guo-qing, PENG Jian-tao, RAO Qi-long, SHEN Yi-li, CHEN Mei-rui, SUN Hui-juan, MAO Hong-min, XU Guo-ding, CAO Zhao-liang, XUAN Li. Longitudinal chromatic aberration compensation method for dual-wavelength retinal imaging adaptive optics systems[J]. Chinese Optics, 2022, 15(1): 79-89. doi: 10.37188/CO.EN.2021-0009
Citation: ZHU Qin-yu, HAN Guo-qing, PENG Jian-tao, RAO Qi-long, SHEN Yi-li, CHEN Mei-rui, SUN Hui-juan, MAO Hong-min, XU Guo-ding, CAO Zhao-liang, XUAN Li. Longitudinal chromatic aberration compensation method for dual-wavelength retinal imaging adaptive optics systems[J]. Chinese Optics, 2022, 15(1): 79-89. doi: 10.37188/CO.EN.2021-0009

Longitudinal chromatic aberration compensation method for dual-wavelength retinal imaging adaptive optics systems

doi: 10.37188/CO.EN.2021-0009
Funds:  Supported by China Jiangsu Key Disciplines of the Thirteenth Five-Year Plan (No. 20168765); Industry-University-Institute Cooperation Foundation of the Eighth Research Institute of China Aerospace Science and Technology Corporation (No. SAST2020-025); Academic Research Projects of Beijing Union University (No. ZK70202007).
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  • Author Bio:

    ZHU Qin-yu (1997—), male, born in Wuxi, Jiangsu Province, master student. He received his bachelor's degree from Changshu Institute of Technology in 2019. He is mainly engaged in the research of photoelectric instruments and intelligent detection technology. E-mail: zhuqywx@163.com

    CAO Zhao-liang (1974—), male, born in Jiyuan, Henan Province, Ph.D., professor and doctoral supervisor. He received his Ph.D. from Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences in 2008. He is mainly engaged in research of liquid crystal adaptive optical system: optical design, optical experiment, theoretical analysis and simulation. E-mail: caozl@usts.edu.cn

  • Corresponding author: caozl@usts.edu.cn
  • Received Date: 06 Sep 2021
  • Rev Recd Date: 26 Sep 2021
  • Available Online: 22 Oct 2021
  • Publish Date: 19 Jan 2022
  • Dual-wavelength retinal imaging adaptive optics systems are suitable for high contrast and resolution imaging of retinal capillaries. The compensation of the Longitudinal Chromatic Aberrations (LCAs) in dual-wavelength adaptive systems is researched. The LCA is measured, the measured wavefronts are analyzed, and the arbitrary wavefront LCA compensation method is given. An adaptive correction experiment is carried out and the experimental results indicate that the root mean square error of the wavefront is reduced to 0.16 λ (λ=589 nm) and the retinal capillary resolution is improved to 6 μm. This work may be used for the clinical applications of retinal imaging.

     

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