Zinc sulfide (ZnS) optical component

Zinc Sulphide (ZnS) is a widely used IR transmitting material in windows, lenses and other optical components and is sometimes referred to as Cleartran™. The material transmits at about 50% between 0.4 -12μm before dropping off to zero transmission around 15μm. Its low absorbance in the IR spectrum makes it desirable for CO2 lasers operating at 10.6μm. Zinc Sulphide has a pale yellow to clear appearance and a hardness of HK160. Although the material is resistant to thermal shock, it is not recommended for harsh environments. Zinc Selenide has a range of applications including optical windows in FLIR (Forward Looking Infrared) systems, meniscus, spherical or cylindrical lenses and resonator windows in CO2 lasers. Knight Optical supply a range of quality Zinc Sulphide optical components including Zinc Sulphide windows, Zinc Sulphide lenses, Zinc Sulphide prisms, and Zinc Sulphide blanks either from stock or bespoke custom made to your specification for a range of applications. Every component is individually tested by our highly skilled technicians in our state of the art metrology lab to ensure all components meet our high quality standards.