RT - Journal Article T1 - Refractive Dual Band Infrared Imager Optical Design JF - ijop YR - 2017 JO - ijop VO - 11 IS - 2 UR - http://ijop.ir/article-1-278-en.html SP - 133 EP - 138 K1 - Infrared imagers K1 - dual band K1 - medium wavelength infrared (MWIR) K1 - long wavelength infrared (LWIR) K1 - Thermal infrared. AB - Infrared imagers are important for reorganization and monitoring. This paper discusses the design of an infrared imager. Optical design in medium wavelength infrared (MWIR) and long wavelength infrared (LWIR) bands is different and needs distinct detectors and materials. Reflective systems are not suitable due to their small field of view (FOV) and vignetting. Refractive dual band optical system has been designed with considering both regions assessment and each band detector specifications. LA eng UL http://ijop.ir/article-1-278-en.html M3 10.18869/acadpub.ijop.11.2.133 ER -