... window For windows,domes and lenses for thermal-imaging system.CVD ZnS, which appears orange, mainly works in Far-infrared regionMulti ... , the maximum size is 300×200×15mm Main Properties AppellationStandard CVD ZnSMulti-Spectral ZnSHomogeneity of refractive index<3×10-5 at ... .28Melting point (C)18301830Density, (g/cm3)4.094.09Thermal conductivity(W/cm.K)0.190.272Thermal expansion coefficient, (10-6 ,C ...