The research of image contrast transmission uniformity of fiber-optic image inverter based on MTF

Through MTF test of different location in plane output type fiber-optic image inverter like output surface used in the 3rd low-light-level image intensifier, the research is on the transmission contrast within the effective imaging surface of the fiber-optic image inverter. It summarizes the MTF of fiber-optic like evaluation formula applied to the 3rd low-light-level image intensifier, and provides more accurate theoretical support for ultimate resolution calculation of the 3rd low-light-level image intensifier.