Zinc Sulphide – Multispectral
lenses, windows, mirrors, filters and prisms
Zinc Sulphide is used for Infrared windows and lenses. The Regular (FLIR) grade is visibly opaque and the Multispectral grade is the water clear form for visible and infrared applications.
| Transmission Range | 0.37-14.0 µ |
| Crystal Structure | Polycrystalline Cubic |
| Cleavage Plane | None |
| Colour | Colourless |
| Density | 4.09 |
| Melting Point (°) | – |
| Reflection Loss | 24% (10.6µ) for 2 surfaces |
| Solubility index | 65×10-6/100gm water |
| Hardness (Knoop) | 150-165Kg/mm2 |
| Thermal Conductivity (cal/cm sec°C) | 0.27 (W/cm°C) |
| Thermal Expansion coefficient (/°C) | 6.5×10-6/°K |
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Whilst every effort has been made to verify all data provided, no responsibility can be accepted for its accuracy.