Zinc Sulphide Multispectral (ZnS)
Water-clear multispectral grade of ZnS that carries the visible through the LWIR in one aperture. Chosen for shared-aperture sensor windows and multi-band seeker optics.
Flat optics material
Typical properties
- Transmission range
- 0.4 – 14 µm
- Refractive index
- 2.20 @ 10.6 µm
- Knoop hardness
- 150 – 165 kg/mm²
- Density
- 4.09 g/cm³
- Thermal expansion (CTE)
- 6.5 × 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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