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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.

λ/10 UV Fused Silica Windows

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

New

UV, Visible, and NIR Anti-Reflection Coated Versions Available
λ/10 Transmitted Wavefront Distortion
Circular and Square Sizes from 2mm to 150mm
1λ or λ/4 UV Fused Silica Windows Also Available

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

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Top Seller

New

Circular and Rectangular Sizes from 2mm to 200mm
8 Broadband Anti-Reflection Coating Options Available
World's Largest Selection of Standard N-BK7 Windows
Also Available with Ultra-Thin N-BK7 Windows

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
Low Index of Refraction
AR Coatings Spanning 250 - 5000nm Available
Calcium Fluoride (CaF2) Wedged Windows also Available

Germanium (Ge) Windows

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Top Seller

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
Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team.
Edmund Optics has limited remaining inventory of this part number and no raw material available to supply more once this is depleted. Please contact our Product Support Engineers to help with an alternate solution for your needs. Customer Service can provide you the latest price and availability.