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All Products / Optics / Windows and Diffusers / UV and IR Windows / Zinc Sulfide Multispectral Windows
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

40mm Diameter 3-12μm AR, Zinc Sulfide Multispectral Window

TECHSPEC® Zinc Sulfide Multispectral Windows

TECHSPEC® Zinc Sulfide Multispectral Windows

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Stock #64-146 3-5 days
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A$1,048.00
Qty 1-10
A$1,048.00
Qty 11+
A$945.60
Volume Pricing
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Specifications

General

Type:
Protective Window

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture (%):
90.00
Clear Aperture CA (mm):
36.00
Diameter (mm):
40.00 +0.0/-0.1
Thickness (mm):
4.00 ±0.1
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
210
Parallelism (arcmin):
<1
Poisson's Ratio:
0.27
Young's Modulus (GPa):
74.5

Optical Properties

Coating:
BBAR (3000-12000nm)
Coating Specification:
Ravg <5.0% @ 3 - 12μm
Index of Refraction (nd):
2.371
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Zinc Sulfide Multispectral
Surface Flatness (P-V):
λ/10 @ 10.6μm
Surface Quality:
60-40
Wavelength Range (nm):
3000 - 12000

Material Properties

Coefficient of Thermal Expansion CTE (10-6/°C):
6.8
Density (g/cm3):
4.08

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 224:
Compliant
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Certificate of Conformance:
View
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Product Details

  • Multispectral Grade Zinc Sulfide Substrate
  • Low Absorption and Low Scatter from 0.4 - 12μm
  • Available Uncoated or 3 - 12μm Broadband AR Coated Option

TECHSPEC® Zinc Sulfide Multispectral Windows are manufactured from a water-free, multi-spectral grade of zinc sulfide that has low absorption and scatter properties over its broad transmission range of 0.4 - 12μm. Like our TECHSPEC® Zinc Selenide Windows, Zinc Sulfide Multispectral is a chemical vapor deposited material which is commonly used in thermal imaging. With its excellent transmission properties in the visible and infrared, Zinc Sulfide Multispectral is the material of choice for systems that have both visible and mid-wave or long-wave infrared sensors. It is slightly harder and more chemically resistant than zinc selenide. TECHSPEC® Zinc Sulfide Multispectral Windows are offered uncoated or in a 3 - 12μm Broadband AR Coated Option. These windows are available in diameters ranging from 12.5 to 50.80mm with a 2, 3, or 4mm thickness.  

Note: Although special handling is required, acetone may be used to remove particles or debris from the windows.

Technical Information

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

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