Zinc Sulphide FLIR (ZnS)
Transmits efficiently across the LWIR band. Standard material in defense thermal imaging, FLIR systems, and hard-service sensor windows.
Flat optics material
Typical properties
- Transmission range
- 8 – 12 µm (usable 1 – 14 µm)
- Refractive index
- 2.20 @ 10.6 µm
- Knoop hardness
- 220 – 240 kg/mm²
- Density
- 4.09 g/cm³
- Thermal expansion (CTE)
- 6.6 × 10⁻⁶ /K
Published values for this material class, given to help you shortlist a substrate. They are not lot-specific guarantees. Request the SPEKTON datasheet for certified figures against your specification.
Download Technical Datasheet (PDF)Datasheet referenced from Crystran.
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