Design of dual-band athermal infrared fisheye optical system

Fu Yuegang; Huang Yunhan; Liu Zhiying

The dual-band infrared optical system can track the band informantion stretch from mid-wave infrared to long-wave infrared, which can greatly improved the information acquisition. A dual-band infrared optical system based on the compact principle was designed, the optical system can imaging clearly continuous from 4.4-8.8 m/17.8-8.8 m, the F# strictly matched with cold light bar that the cold light bar effect reached 100%. While the system using the passive athermal methods to get rid of temperature compensation problem and finally realized the dual-band of athermalization. The result shows that: the design of the system structure is relatively simple, and can get stable good imaging quality in continuous bands from -40 ℃ to 60 ℃, satisfying the requirements of a standard infrared thermal imager.

1. Monitoring and Analysis Center,Changchun University of Science and Technology,Changchun 130022,China

Received Date: 2014-02-20

Rev Recd Date: 2014-03-25

Publish Date: 2014-10-25

Key words:

Abstract: The dual-band infrared optical system can track the band informantion stretch from mid-wave infrared to long-wave infrared, which can greatly improved the information acquisition. A dual-band infrared optical system based on the compact principle was designed, the optical system can imaging clearly continuous from 4.4-8.8 m/17.8-8.8 m, the F# strictly matched with cold light bar that the cold light bar effect reached 100%. While the system using the passive athermal methods to get rid of temperature compensation problem and finally realized the dual-band of athermalization. The result shows that: the design of the system structure is relatively simple, and can get stable good imaging quality in continuous bands from -40 ℃ to 60 ℃, satisfying the requirements of a standard infrared thermal imager.

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Reference (19)

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Design of dual-band athermal infrared fisheye optical system

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