Study of infrared imaging system based on liquid-crystal thermo-optic effect

摘要

In this paper, based on the optical rotation property of cholesteric liquid crystals, a new system for studying the optical readout infrared imaging was designed. The profile of hot object is imaged on the surface of liquid crystal cell through the infrared lens, as the uneven heating, the optical rotation is different in various parts of the cholesteric liquid crystals, especially in the imaging area and non-imaging area, the difference is larger. Through the optical system, the optical rotation signal is translated into the corresponding light intensity signal, then the light intensity signal is collected by the visible CCD, and the image of the hot object will be displayed on the screen.