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Volume 43 Issue 9
Sep.  2021
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ZHOU Xiaobin, ZHANG Heng, WEN Jianghua, WU Yan, LIU Zhaoqing, ZHANG Xiangming, JIN Mingxin. LWIR Optical System Design by Passive Athermalization[J]. Infrared Technology , 2021, 43(9): 836-839.
Citation: ZHOU Xiaobin, ZHANG Heng, WEN Jianghua, WU Yan, LIU Zhaoqing, ZHANG Xiangming, JIN Mingxin. LWIR Optical System Design by Passive Athermalization[J]. Infrared Technology , 2021, 43(9): 836-839.
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LWIR Optical System Design by Passive Athermalization

  • Xi'an Institute of Applied Optics, Xi'an 710065, China

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  • Received Date: January 01, 2021
  • Revised Date: August 19, 2021
    Graphical Abstract
    • Abstract
  • A low-cost and high-quality hybrid passive athermalization method for LWIR was proposed by combining passive optical and passive mechanical athermalization. An athermalization optical system with a focal length of 75 mm and F/1 was designed using passive optical and hybrid passive athermalization. Compared with traditional passive mechanical athermalization, the volume and complexity of the thermal compensation structure can be reduced using hybrid passive athermalization. In addition, the proposed method decreases the volume and weight of the system. Compared with passive optical athermalization, hybrid passive athermalization can reduce the volume and processing difficulty when the imaging quality is the same. Thus, the propose method can be used to achieve a low-cost, high-quality, long-wave athermalization system.
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    • References (10)
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