中国光学（中英文）2024，Vol.17Issue(1)：69-78,10.DOI:10.37188/CO.2023-0052
大变倍比制冷型长波红外变焦光学系统设计
Design of cooled long-wave infrared optical system with large zooming range
摘要
Abstract
Compared with the medium-wave Infrared(MWIR)zoom optical system,the long-wave infrared(LWIR)zoom optical system has fewer available materials and is difficult to athermalize in high and low temperature environments.In this paper,the multi-field zoom optical system is realized by using mechanical compensation zoom technology,and the active compensation athermalization technology is used to make the system image clear in the temperature range of-40℃—+65℃,to realize the design of the four-field LWIR optical system with four lenses.The focal lengths of the four fields of view are 25 mm,109 mm,275 mm and 400 mm,the zoom ratio is 15,the envelope size of the optical system is 280 mm(L)×200 mm(W),and the total weight of the optical components is 618 g.The optical system has SWaP-C characteristics such as light weight,high performance,and low cost,and will be widely used in security fields such as auxiliary naviga-tion,search,and tracking.关键词
制冷型长波红外/变焦光学系统/机械补偿/无热化Key words
cooled long-wave infrared/zoom optic system/mechanical compensation/athermalization分类
信息技术与安全科学引用本文复制引用
唐晗,夏丽昆,刘炼,刘云,刘炫,刘愚,张润琦,周春芬,杨开宇..大变倍比制冷型长波红外变焦光学系统设计[J].中国光学（中英文）,2024,17(1):69-78,10.基金项目
国家重点研发计划(No.0701200)Supported by National Key Research and Development Program of China(No.0701200) （No.0701200）
