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ISP Optics Zinc Sulfide (ZnS) Windows

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  • Low Absorption and Low Scatter from 0.4 - 12μm
  • Higher Durability than Zinc Selenide
  • Ideal for Use with Infrared Sensors

Common Specifications

Bevel:
Protective as needed
Clear Aperture (%):
85
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
210
Parallelism (arcmin):
<3
Poisson's Ratio:
0.27
Young's Modulus (GPa):
74.5
Coating:
Uncoated
Index of Refraction (nd):
2.371
Surface Flatness (P-V):
λ/20 @ 10.6μm
Surface Quality:
60-40
Wavelength Range (nm):
400 - 12000
Coefficient of Thermal Expansion CTE (10-6/°C):
6.8
Density (g/cm3):
4.08

Products

Dia. (mm)  Thickness (mm)   Coating   Model Number   Compare   Stock Number   Price  Buy
25.40 4.00 Uncoated ZL-W-25-4
38.10 3.00 Uncoated ZL-W-38-3
50.80 4.00 Uncoated ZL-W-50-4
50.80 5.00 Uncoated ZL-W-50-5
76.20 8.00 Uncoated ZL-W-76-8

Product Details

ISP Optics Zinc Sulfide (ZnS) Windows feature low absorption and low scatter through the Visible (VIS) and Infrared (IR) spectrum from 0.4 - 12μm. Zinc Sulfide is a chemically vapor deposited (CVD) material which is commonly used in imaging systems featuring a visible and thermal path. Compared to Zinc Selenide (ZnSe), it is slightly harder and more chemically resistant. ISP Optics Zinc Sulfide (ZnS) Windows are ideal for systems that have both visible and mid-wave infrared (MWIR) or long-wave infrared (LWIR) sensors.

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