中国光学（中英文）2025，Vol.18Issue(1)：70-77,8.DOI:10.37188/CO.2024-0095
低公差敏感度的大变倍比极短总长中波红外变焦光学系统设计
Design of a medium-wave infrared zoom optical system with low toler-ance sensitivity,large zoom ratio,and extremely short total length
摘要
Abstract
In response to the current problem of difficulty in achieving extremely short total length and low sensitivity in medium wave infrared zoom systems under conditions of large zoom ratio and long focal length,we design a low-sensitivity medium wave infrared zoom optical system with a total length of only 337 mm and no need for folding optical paths,through the rational allocation of aspherical and diffractive surfaces,as well as adopting a low sensitivity design method for independent components.By reducing the aberration of each component,the system tolerance sensitivity is reduced.The system achieves a 30× zoom ratio and continuous zoom with a long focal length of 30-900 mm.The system has advantages such as a large zoom ratio,long focal length zoom,extremely short total length,low sensitivity,and good image quality within the entire focal length range.It has significant application advantages for military applications such as target recognition,tracking,and detection in narrow spaces.关键词
红外系统/长焦距变焦/大变倍比/极短总长/低敏感度Key words
infrared system/long focal length zoom/large zoom ratio/extremely short total length/low sens-itivity分类
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李雨哲,胡源,霍家琦,张又予,高天元..低公差敏感度的大变倍比极短总长中波红外变焦光学系统设计[J].中国光学（中英文）,2025,18(1):70-77,8.基金项目
吉林省自然科学基金(No.20240101360JC)Supported by Natural Science Foundation of Jilin Province(No.20240101360JC) （No.20240101360JC）
