Optical design of infrared polarization imaging system

The optical information of object includes the polarization information in addition to the common spectral information. The acquisition of polarization information can achieve information extraction for a specific target in a complex background, especially the extraction of metal target information. Combined with the principle, composition and characteristics of polarization imaging, a common-aperture common-detector long-wave infrared polarization imaging system was used to extract the target information. Through simulation software analysis, the system can detect a vehicle target of 3 km away, and the imaging quality is good.