Shanxi Changcheng Microlight Equipment Co. Ltd., along with its subsidiaries, designs, researches, develops, manufactures, and sells image transmission fiber optic products in the People's Republic of China, Hong Kong, Russia, and Europe. Its fiber-optic imaging devices include fiber optic inverters, straight plates, face plates, tapers, and microchannel plates for medical imaging equipment, digital photography, physics, biochemistry, and other civilian applications, as well as for military low-light night vision devices and video systems. The company also sells optoelectronic products and wholesales household water purifiers. Incorporated in 2000, it is headquartered in Taiyuan, the People's Republic of China.