Optic design of 6× continuous zoom scanning infrared system with array detector
Received:December 18, 2019  Revised:January 18, 2021  download
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Author NameAffiliationE-mail
DING Xue-Zhuan Key Laboratory of Infrared System Detecting and Imaging Technology, Chinese Academy of Sciences, Shanghai 200083China
Shanghai Institute of Technological PhysicsChinese Academy of Sciences, Shanghai 200083China 
dingxuezhuan@163.com 
HUANG Jiang-Qing Key Laboratory of Infrared System Detecting and Imaging Technology, Chinese Academy of Sciences, Shanghai 200083China
Shanghai Institute of Technological PhysicsChinese Academy of Sciences, Shanghai 200083China 
 
LI Zheng Key Laboratory of Infrared System Detecting and Imaging Technology, Chinese Academy of Sciences, Shanghai 200083China
Shanghai Institute of Technological PhysicsChinese Academy of Sciences, Shanghai 200083China 
 
YU Yang Key Laboratory of Infrared System Detecting and Imaging Technology, Chinese Academy of Sciences, Shanghai 200083China
Shanghai Institute of Technological PhysicsChinese Academy of Sciences, Shanghai 200083China 
 
LI Fan-Ming Key Laboratory of Infrared System Detecting and Imaging Technology, Chinese Academy of Sciences, Shanghai 200083China
Shanghai Institute of Technological PhysicsChinese Academy of Sciences, Shanghai 200083China 
 
Abstract:A triple imaging infrared continuous zoom array detector scanning optical system is proposed. On the basis of traditional infrared secondary imaging optics, a continuous zoom telescope system is added. Continuous zoom is realized by moving the zooming group and the compensating group along the optical axis. In the middle parallel light path, a galvanometer is introduced, and the galvanometer is used to scan back in the corresponding angle range at a specific frequency, which can compensate for the object movement during the exposure time caused by the rotation of the scanning platform, and keep the image clear and stable during the rotation scanning without any shadow. A 60~360 mm continuous zoom optic system is designed. Optic distortion is smaller than 0.5% at all effective focal length. The system achieved good performance after testing, and can be widely used in the infrared search and tracking system.
keywords:infrared search and tracking  array detector scanning  triple imaging  infrared zoom optic
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Copyright:《Journal of Infrared And Millimeter Waves》