II-VI Incorporated engages in the development, manufacture, and marketing of materials and derivative products for precision use in industrial, medical, military, security, and aerospace applications. It offers laser-related products, including laser gain materials for solid-state lasers and optical elements used to focus and direct laser beams to target or work surfaces. The company also provides infrared and military infrared products, including missile domes, electro-optical windows and subassemblies, imaging lenses, and other components; as well as precision infrared optical components, such as lenses, waveplates, and mirrors for use in CO2 lasers. It manufactures waveplates,...