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12.5mm Diameter Uncoated, Zinc Sulfide Cleartran Window

Stock #66-200
Qty 1-10
Qty 11
Qty 11+
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Clear Aperture (%):
Diameter (mm):
Dimensional Tolerance (mm):
Thickness (mm):
Parallelism (arcmin):
Zinc Sulfide, Cleartran™
Surface Flatness:
λ/10 @ 10.6μm
Surface Quality:
Thickness Tolerance (mm):
Protective Window
Wavelength Range (μm):
0.4 - 12
Wavelength Range (nm):
400 - 12000

Product Family Description

  • Cleartran™ 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 Cleartran™ 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 is a chemically vapor deposited material which is commonly used in thermal imaging. With its excellent transmission properties in the visible and infrared, Cleartran™ 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.

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

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