双波长视网膜成像自适应光学系统的轴向色差补偿方法  

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

作　　者：朱沁雨 韩国庆 彭建涛 饶启龙 沈毅力 陈梅蕊 孙会娟[4] 毛红敏[1] 徐国定 曹召良 宣丽[2] 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(Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application,School of Physical Science and Technology,Suzhou University of Science and Technology,Suzhou 215009,China;State Key Laboratory of Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;Shanghai Institute of Satellite Engineering,China Aerospace Science and Technology Corporation,Shanghai 201109,China;Institute of Mathematics and Physics,Institute of Fundamental and Interdisciplinary Sciences,Beijing Union University,Beijing 100101,China)

机构地区：[1]苏州科技大学物理科学与技术学院江苏微纳热流技术与能源应用重点实验室,江苏苏州215009 [2]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,长春130033 [3]中国航天科技集团公司上海卫星工程研究所,上海201109 [4]北京联合大学基础与交叉科学研究所数学与物理研究所,北京100101

出　　处：《中国光学》2022年第1期79-89,共11页Chinese Optics

基　　金：江苏省“十三五”重点学科(No.2016876);中国航天科技集团公司第八研究院产学研合作基金资助(No.SAST2020-025);北京联合大学学术研究项目(No.ZK70202007)。

摘　　要：双波长视网膜成像自适应光学系统非常适用于视网膜微血管的高对比度和高分辨率成像。本文重点研究了双波长自适应系统的轴向色差补偿问题。首先对轴向色差进行了测量,对实测波前进行了分析,并给出任意波前轴向色差补偿法。自适应校正实验结果显示,色差补偿后,波前均方根误差减小到0.16λ(λ=589 nm),视网膜微血管分辨率提高到6μm。这项工作可用于视网膜成像的临床应用。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 0.16λ(λ=589 nm)and the retinal capillary resolution is improved to 6μm.This work may be used for the clinical applications of retinal imaging.

关 键 词：自适应光学 视网膜成像 轴向色差 双波长 

分 类 号：O439[机械工程—光学工程]