... lenses Coating: Upon requirement ZnS window For windows,domes and lenses for thermal-imaging system.CVD ZnS, which ... ZnS (M-ZnS) shows excellent optical properties across the full band of 0.4-12μm, can be ... ZnS windows, lenses and domes with size up to Ø250×16mm. For M-ZnS, the maximum size is 300×200×15mm Main ... K)0.190.272Thermal expansion coefficient, (10-6 ,C-1 )7.857.85Specific heat (Cal/g.k.)0.1120 ...