中国光学（中英文）2024，Vol.17Issue(4)：921-931,11.DOI:10.37188/CO.2023-0240
基于同轴柯勒照明的大变倍比紧凑型显微镜设计
Design of large zoom ratio compact microscope based on coaxial Kohler illumination
摘要
Abstract
In order to achieve a large image plane and large zoom ratio in microscopic imaging and solve the problem of the high integration of coaxial Kohler illumination,we propose a design method for a compact optical system with a large zoom ratio based on coaxial Kohler illumination.First,the imaging principle of the continuous zoom optical system of telescopes and microscopes is analyzed,and the design principle of the positive group compensation zoom microscope is analyzed theoretically.Then,the front fixed group is di-vided into a collimation group and a convergence group,and a beam splitter prism is designed between the two lens groups to achieve a compact coaxial Kohler illumination optical system by sharing lens groups.Fi-nally,the continuous zoom microscope with a large image plane and the matched coaxial Kohler illumina-tion optical system are designed.The design results show that the zoom ratio of the microscope optical sys-tem is 10×,the working distance is 60 mm,the highest resolution of the object side is 1.75µm,and the coaxi-al illumination uniformity is 94.3% .The designed microscope has excellent imaging quality,minimal distor-tion,a smooth zoom curve,and a compact size,verifying the feasibility of the design method.关键词
连续变倍显微镜/同轴柯勒照明/光学设计/紧凑型Key words
continuous zoom microscope/coaxial Kohler illumination/optical design/compact structure分类
数理科学引用本文复制引用
王起,张国芳..基于同轴柯勒照明的大变倍比紧凑型显微镜设计[J].中国光学（中英文）,2024,17(4):921-931,11.基金项目
滁州职业技术学院提质培优《产品表现技法》课堂革命项目(No.2022TZPY046) （No.2022TZPY046）
滁州职业技术学院工业设计特色专业教学资源库项目(No.2022jxzyk04)Supported by Improvement and Optimization of Product Performance Techniques:a Revolutionary Project in the Classroom of Chuzhou Vocational and Technical College(No.2022TZPY046) （No.2022jxzyk04）
Industrial Design Specialty Teaching Resource Library Project of Chuzhou Vocational and Technical College(No.2022jxzyk04) （No.2022jxzyk04）
