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Products / Optics / Defense Optics / COTS Windows

COTS Windows

Custom and
Volume Manufacturing
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λ/10 UV Fused Silica Windows λ/10 UV Fused Silica Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
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  • UV, Visible, and NIR Anti-Reflection Coated Versions Available
  • λ/10 Transmitted Wavefront Distortion
  • Sizes Ranging from 5 - 150mm Diameters
  • 1λ or λ/4 UV Fused Silica Windows Also Available
High Durability Anti-Reflection (AR) Coated Sapphire Windows High Durability Anti-Reflection (AR) Coated Sapphire Windows
  • Achieves Severe Abrasion Requirements of MIL-C-675C
  • Low Reflection Coatings for 400 - 1100nm or 2000 - 5000nm
  • Ideal for Harsh Environments Requiring Thin Optics
  • Uncoated Sapphire Windows are Also Available
λ/4 N-BK7 Precision Windows λ/4 N-BK7 Precision Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
Best Seller
  • Circular and Square Sizes from 5mm to 150mm
  • 6 Broadband Anti-Reflection Coating Options Available
  • World's Largest selection of Standard N-Bk7 Windows
  • Also Available with Laser Line V-Coats
Anti-Reflection (AR) Coated Plastic Windows Anti-Reflection (AR) Coated Plastic Windows Clearance
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  • Visible Light Transmission >97%
  • Durable Material
  • Ideal for Medical and Industrial Applications
Calcium Fluoride (CaF<sub>2</sub>) Windows Calcium Fluoride (CaF2) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Low Absorption, High Transmission UV Grade Calcium Fluoride
  • Ideal for Applications Ranging from 200nm - 7μm
  • Low Index of Refraction
Germanium (Ge) Windows Germanium (Ge) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
Best Seller
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  • Uncoated or with AR Coatings Designed for a Variety of IR Ranges
  • Minimal Chromatic Aberration Due to Low Dispersion
  • Ideal for Infrared Applications Requiring Rugged Optics
  • DLC Coated Germanium Windows are also Available
Glass Domes Glass Domes
  • Provide a Protective Environment
  • Easily Mounted
  • Ideal for Visible and Near-Infrared Applications
High Performance Hot Mirrors High Performance Hot Mirrors
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • High Transmission from 400 - 690nm
  • High Reflection from 750 - 1125nm
  • Ideal for Minimizing Heat Build-Up
Infrared (IR) Material Windows Infrared (IR) Material Windows
  • Excellent Optics for Infrared Detectors
  • Minimal Absorption Loss from 8 - 14μm
  • Easily Cut to Size
Magnesium Fluoride (MgF<sub>2</sub>) Windows Magnesium Fluoride (MgF2) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Excellent Transmission from 120nm to 7μm
  • Rugged and Durable
  • Resistant to Chemical Etching
Precision UV Grade Sapphire Windows Precision UV Grade Sapphire Windows
  • λ/4 Surface Flatness Ideal for Imaging Applications
  • Improved Surface Quality to Minimize Scatter in UV Applications
  • Excellent Transmission from 0.2 - 5.5μm
  • TECHSPEC® Sapphire Windows Also Available
Sapphire Windows Sapphire Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
Best Seller
  • Features Extreme Surface Hardness Chemical Resistance
  • Transmits Wavelengths Ranging From UV to Mid-Infrared
  • Thinner and Stronger than Standard Glass Windows
  • Anti-Reflection Coating Options Covering 400 - 5000nm Available
Silicon (Si) Windows Silicon (Si) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Transmission from 1.2 - 7μm
  • Available Uncoated or AR Coated for 1.65 - 5μm
  • Ideal for Weight Sensitive Applications
Spherical Aberration Compensation Plates Spherical Aberration Compensation Plates
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Precision N-BK7 Substrate
  • Optimized for Use in Collimated Light with Small Fields of View
  • Transmitted Wave Front Accurate to λ/16
Zinc Selenide (ZnSe) Windows Zinc Selenide (ZnSe) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Low Dispersion
  • Available Uncoated or AR Coated
  • Ideal for Thermal Imaging, FLIR, and Medical Systems

View all Resources Related to COTS Windows  

COTS Windows are used in defense or security applications to separate multiple environments. COTS Windows are designed to protect sensitive optical components or people from harmful laser beams. COTS Windows use a variety of substrates, coatings, or a combination of the two to reflect only specific wavelengths. COTS Windows are a low cost alternative to developing custom optical windows. COTS Windows designed for use in the ultraviolet, visible, or infrared are available.

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