1 Infrared materials including Chalcogenides, components, and assemblies for use in infrared imaging and infrared non-imaging applications, namely spherical and aspheric lenses, optical windows, wedged windows, brewster windows, ball lenses, optical hemispheres, prisms, mirrors, beamsplitters, diffractive lenses, polarizers, waveplates, diffusers, filters, fixed and manual focus thermal imaging lens assemblies for MWIR and LWIR cameras (both cooled and uncooled, athermalized and non-athermalized), manufacturer of optical materials such as KBr, NaCl, and provides a range of optical coatings including anti-reflective, high-reflectivity, diamond-like carbon, and moisture resistant coatings for use in infrared imaging and infrared non-imaging applications