II-VI Incorporated develops, manufactures and markets engineered materials and opto-electronic components and products for precision use in industrial, optical communications, military, semiconductor, medical and life science, and consumer applications. The Company has three segments: II-VI Laser Solutions, II-VI Photonics and II-VI Performance Products. Its II-VI Laser Solutions segment designs, manufactures and markets optical and electro-optical components and materials sold under the II-VI Infrared brand and used in carbon dioxide (CO2) lasers. Its II-VI Photonics segment manufactures crystal materials, optics, microchip lasers and opto-electronic modules for use in optical communication networks and other consumer and commercial applications. Its II-VI Performance Products segment designs, manufactures and markets infrared optical components and optical assemblies for military, medical and commercial laser imaging applications.