Dynasil Fused SilicaSixty years of leadership as an authorized distributor of Corning High Purity Fused Silica HPFS® 7980, 7979 IR, ULE® 7972. Evaporated Metal Films (EMF)Pioneer in optical coating solutions on plastic, glass, metal, and ceramics. Leader in DLC coatings on infrared optics. Hilger CrystalsWell-established and proven reputation for manufacturing commercial-grade scintillation crystals for IR spectroscopy and state-of-the-art detection solutions. OptometricsLeading supplier of optical components and pre-aligned sub-assemblies. Mechanical ruling, holographic recording, photolithography, and optical thin film coatings. Radiation Monitoring Devices (RMD)Recognized worldwide as the foremost expert in radiation monitoring, detection and imaging, nuclear instrumentation, and non-destructive testing.