Optical Review

, Volume 24, Issue 3, pp 325–333 | Cite as

A catadioptric infrared dual band optically passive athermal optical system

  • Yu Bai
  • Tingwen Xing
  • Yadong Jiang
Regular Paper


The paper proposes a catadioptric infrared dual band optical system based on catadioptric configuration and optically passive athermal design method. The system shares primary mirror, secondary mirror and collimating lens group, and achieves abruption in longwave infrared and midwave infrared using a dichroic beam splitter. The influence of temperature on optical parameters, the design theory and design method are analyzed. A design example is presented. The detailed optimization design method and some considering factors in engineering design moment are discussed. The design results illustrate that the system can obtain good image quality in environment temperature of 10–40 °C, which could satisfy the design requirement. The actual test result not only satisfies the design requirement, but also validates the availability of the method in the paper.


Optical design Catadioptric lens Infrared dual band 


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Copyright information

© The Optical Society of Japan 2017

Authors and Affiliations

  1. 1.Institute of Optics and ElectronicsChinese Academy of SciencesChengduChina
  2. 2.University of Electronic Science and Technology of ChinaChengduChina
  3. 3.University of Chinese Academy of SciencesBeijingChina

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