ZnS
Cleartran ZnS Windows
Cleartran ZnS Windows for multispectral infrared windows and durable sensing apertures, with Cleartran ZnS material, custom size review, and coating options.
zns-windows
Zinc Sulfide (ZnS)
Zinc Sulfide (ZnS) optical material for multispectral infrared windows and rugged imaging optics, with property review for custom windows, lenses, and IR assem.
Key Properties
Transmission Range: 0.4 - 12 µm
Refractive Index: 2.4028 at 10.6 μm; values vary by wavelength
Density: 4.09 g/cm3
Knoop Hardness: 160 kg/mm2
About Zinc Sulfide (ZnS)
Overview
Zinc Sulfide (ZnS) is an optical material used for multispectral infrared windows and rugged imaging optics. Material selection should be based on wavelength range, mechanical limits, coating compatibility, and the final geometry of the optic.
Key Material Properties
| Parameter | Guidance |
|---|---|
| Transmission Range | 0.4-12 μm |
| Refractive Index | 2.4028 at 10.6 μm; values vary by wavelength |
| Density | 4.09 g/cm3 |
| Knoop Hardness | 160 kg/mm2 |
| Young's Modulus | 74.5 GPa |
| Thermal Expansion | 6.3*10^-6/K @273 K; 7.0*10^-6/K @373 K |
Typical Applications
- Multispectral imaging windows
- Infrared protective windows
- Visible-to-IR optics
- Thermal imaging components
- Harsh-environment optical systems
Selection Guidance
ZnS selection should confirm thermal band, coating, environmental exposure, and mounting method. Treat the values on this page as engineering selection guidance, then confirm final tolerances, coating, and inspection requirements against the production drawing.
Request Material Review
Use the contact form or email [email protected] with wavelength, size, quantity, coating target, and application notes for a practical material review.
Material Properties
Material
Zinc Sulfide (ZnS)
Transmission Range
0.4-12 μm
Refractive Index
2.4028 at 10.6 μm; values vary by wavelength
Density
4.09 g/cm3
Knoop Hardness
160 kg/mm2
Young's Modulus
74.5 GPa
Thermal Expansion
6.3*10^-6/K @273 K; 7.0*10^-6/K @373 K
Common Applications
Multispectral imaging windowsInfrared protective windowsVisible-to-IR opticsThermal imaging componentsHarsh-environment optical systems
Zinc Sulfide (ZnS) Products
ZnS
ZnS Optics
ZnS Optics for multispectral infrared imaging and protective optical assemblies, with Cleartran ZnS material, custom size review, and coating options.
zns-general-optics
ZnS
ZnS Plano-Convex Lenses
ZnS plano-convex lenses for MWIR and LWIR systems, offering durable zinc sulfide optics with custom sizes, AR coatings, and IR applications.
zns-plano-convex-lenses