Night vision technology is a special technology to study the generation, enhancement, conversion, transmission, storage and processing of optical image information at night or under low illumination. It is an edge discipline developed in recent decades on the basis of physics, electronics, electronic optics, physiological optics, engineering optics, fiber optics, vacuum technology, semiconductor technology, and computer technology. It is a comprehensive technology integrating optics, mechanics, electronics, and computers. It is one of the three emerging high technologies in the field of optics since the 1960s: laser technology, fiber optics technology and low-light night vision technology.