The research of new space-based full-spectrum camera for detection and warning

According to the requirement of the full-spectrum camera for detection and warning proposed a camera structure which can cover the ultraviolet (UV, 250-400nm), visible light (480nm-680nm), medium wave infrared (MWIR, 3700nm-4800nm), long-wave infrared (LWIR, 8000nm-12000nm). The camera can utilize the different radiation characteristics of weapons target to achieve the full-spectrum detection and warning. In this structure, a four off-axis reflection system was used as the Primary Optical Systems. Four splitters were utilized to achieve four spectral bands. According to the detector and the corresponding application, the calculation and the design of the four subsystems were completed. After the design, the MTF of the four optical system show as follows: UV MTF>0.7@39lp/mm, visible MTF>0.7@72lp/mm, MWIR MTF> 0.7@17lp/mm, LWIR MTF> 0.7@17lp/mm.