![λ/4 N-BK7 Precision Windows](https://productimages.edmundoptics.com/5597.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Circular and Rectangular Sizes from 2mm to 200mm
- 7 Broadband Anti-Reflection Coating Options Available
- World's Largest Selection of Standard N-BK7 Windows
- Also Available with Ultra-Thin N-BK7 Windows
![Sapphire Windows](https://productimages.edmundoptics.com/5561.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- 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 350 - 5000nm Available
![λ/4 UV Fused Silica Windows](https://productimages.edmundoptics.com/9043.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
![λ/10 UV Fused Silica Windows](https://productimages.edmundoptics.com/20252.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
![1λ UV Fused Silica Windows](https://productimages.edmundoptics.com/7860.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
![Ultra-Thin N-BK7 Windows](https://productimages.edmundoptics.com/7246.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Ultra-Thin 0.20mm Thickness
- Precision N-BK7 Substrate
- Extremely Lightweight
![SCHOTT AS87ECO Ultra-Thin Windows](https://productimages.edmundoptics.com/9801.jpg?w=305&quality=80)
- High Level of Flexibility
- Ultra-Thin Thickness for Low Profile Designs
- Excellent Transmission from 250nm to >3µm
![Chemically Strengthened SCHOTT AS 87 eco Ultra-Thin Windows](https://productimages.edmundoptics.com/10495.jpg?w=305&quality=80)
- Enhanced Impact, Temperature, and Scratch Resistance
- High Transmission in the Visible and NIR Spectra
- Ideal as Cover Glass for Displays and Sensors
- SCHOTT AS 87 eco Ultra-Thin Windows Also Available
![Uncoated Laser Window Substrates](https://productimages.edmundoptics.com/7872.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- 10-5 Surface Quality and λ/10 Surface Flatness
- Fused Silica or N-BK7 Material
- Standard Imperial Sizes for Drop-in Replacement Solutions
- Laser Line Coated Versions Available
- Mirror Substrates Also Available
![TECHSPEC BOROFLOAT Borosilicate Windows](https://productimages.edmundoptics.com/9792.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Low Coefficient of Thermal Expansion
- Visible to Near Infrared Transmission
- High Resistance to Thermal Shock
![Gorilla® Glass Windows](https://productimages.edmundoptics.com/2778.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Chemically Strengthened Drawn Glass
- Highly Resistance to Surface Scratches
- Ideal for Electronic Displays
![High Efficiency Anti-Reflection (HEAR) Coated Windows](https://productimages.edmundoptics.com/5545.jpg?w=305&quality=80)
- High Transmission
- Eliminate Back Reflections and Reduce Glare
- Available in a Wide Range of Sizes
![B270 Windows](https://productimages.edmundoptics.com/2761.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Large Selection of Sizes
- Available Uncoated, MgF2, or VIS-NIR Anti-Reflection (AR) Coated
- Custom Sizes Available for Volume OEM Requirements
![Ultrafast Thin Windows](https://productimages.edmundoptics.com/8149.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- 1mm Thickness for Limited GDD
- Low Loss Broadband IBS Anti-Reflection Coating
- Designs for Wavelengths from 370nm to 2200nm
- Coating GDD of ±30fs2
- UV or IR Grade Fused Silica Substrates
![Laser Debris Shields](https://productimages.edmundoptics.com/7476.jpg?w=305&quality=80)
- Protective Shield for Optical Systems
- Sizes from 50mm to 134mm
- Uncoated and Laser Line Coated Options Available
![Hydrophobic Windows](https://productimages.edmundoptics.com/6175.jpg?w=305&quality=80)
- Oil and Water Repellent Coating
- Ideal for Industrial and Harsh Environments
- AR Coated for <0.5% Reflection in the Visible Spectrum
![Sodium Chloride (NaCl) Windows](https://productimages.edmundoptics.com/5365.jpg?w=305&quality=80)
- Excellent Transmission from 250nm – 16μm
- Low Cost
- Ideal for FTIR Spectroscopy
- Potassium Bromide (KBr) Windows Also Available
![Potassium Bromide (KBr) Windows](https://productimages.edmundoptics.com/10529.jpg?w=305&quality=80)
- Excellent Transmission from 250nm – 26μm
- Good Resistance to Mechanical Shock
- Ideal for FTIR Spectroscopy
- Sodium Chloride (NaCl) Windows Also Available
![Magnesium Fluoride (MgF<sub>2</sub>) Windows](https://productimages.edmundoptics.com/2999.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Excellent Transmission from 120nm to 7μm
- Rugged and Durable
- Resistant to Chemical Etching
![Barium Fluoride (BaF<sub>2</sub>) Windows](https://productimages.edmundoptics.com/5870.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Excellent Transmission from 200nm - 12μm
- Resistant to High-Energy Radiation
- Provide High Transmission without AR Coatings
![Calcium Fluoride (CaF<sub>2</sub>) Windows](https://productimages.edmundoptics.com/7630.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- 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
![Suprasil® Windows](https://productimages.edmundoptics.com/9045.jpg?w=305&quality=80)
- High Transmission from 200 to 3500nm
- <1 ppm OH Content for Minimal Absorption Losses
- 10-5 Surface Quality and up to λ/10 TWD
![λ/4 N-BK7 Laser Line Windows](https://productimages.edmundoptics.com/2697.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- <0.25% Reflection at Design Wavelength
- Coatings Available for HeNe, Diode, and Nd:YAG Laser Sources
- Precision N-BK7 Substrate
- Also Available Uncoated, MgF2 Coated and VIS 0° Coated
![N-BK7 Wedged Windows](https://productimages.edmundoptics.com/9682.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- N-BK7 Substrates with a 30 Arcminute Wedge
- λ/10 Surface Flatness and 20-10 Surface Quality
- Ideal for Eliminating Etalon Effects
- Fused Silica Wedged Windows and N-BK7 Flat Windows Also Available
![Acrylic (PMMA) Plastic Windows](https://productimages.edmundoptics.com/10221.jpg?w=305&quality=80)
- Highly Scratch-Resistant
- High Visible Light Transmission
- Cost-Effective Alternative to Glass
- Polycarbonate Plastic Windows Also Available
![Polycarbonate Plastic Windows](https://productimages.edmundoptics.com/10221.jpg?w=305&quality=80)
- High Visible Light Transmission
- Excellent Thermal Stability
- Durable and Lightweight
- Acrylic (PMMA) Plastic Windows Also Available
![Clear Optical Cast Plastic Windows](https://productimages.edmundoptics.com/5595.jpg?w=305&quality=80)
- Lightweight Alternative to Glass Windows
- Excellent Thermal and Chemical Resistance
- Higher Transmission than Similar Transparent Plastics
![ITO Coated EMI Shielded Plastic Windows](https://productimages.edmundoptics.com/5434.jpg?w=305&quality=80)
- >84% Visible Light Transmission
- Reflects Infrared While Transmitting Visible
- 49dB Shielding Effectiveness
![Float Glass Optical Windows](https://productimages.edmundoptics.com/5007.jpg?w=305&quality=80)
- Transmits Visible and Near Infrared Wavelengths
- Available Uncoated or with an Anti-Reflection Coating
- Variety of Sizes Available
![TECHSPEC® Thin Fused Silica Laser Windows](https://productimages.edmundoptics.com/8740.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Thin 1mm Thickness
- UV or IR Fused Silica Substrates
- Low Loss Broadband IBS Anti-Reflection Coating
![Laser Grade C-Axis Sapphire Windows](https://productimages.edmundoptics.com/9126.jpg?w=305&quality=80)
- C-Axis Cut Sapphire to Eliminate Birefringence
- 10-5 Surface Quality and λ/10 TWFD
- Uncoated or IBS AR Coated for 1000-1100nm
- Ideal for High Power Laser Applications
![Sapphire Windows with Through Holes](https://productimages.edmundoptics.com/9686.jpg?w=305&quality=80)
- 25.4mm Diameter Sapphire Substrates
- 3.2 - 19.1mm Through Hole Diameters
- High Transmission From 0.33 - 5.5μm
![Dragontrail™ Chemically Strengthened Windows](https://productimages.edmundoptics.com/9701.jpg?w=305&quality=80)
- Chemically Strengthened Thin Glass
- Highly Resistant to Surface Scratches
- Ideal for Electronic Displays
- TECHSPEC® Gorilla® Glass Windows Also Available
![SCHOTT Xensation® Chemically Strengthened Windows](https://productimages.edmundoptics.com/10614.jpg?w=305&quality=80)
- Highly Resistant to Breakage and Surface Scratches
- Microfloat Manufacturing Process
- Ideal for Capacitive Touch Technologies
- TECHSPEC® Gorilla® Glass Windows and Dragontrail™ Chemically Strengthened Windows Also Available
![SCHOTT D263® T eco Windows](https://productimages.edmundoptics.com/21071.jpg?w=305&quality=80)
- Thin 0.4mm SCHOTT D263® T eco Substrates
- Excellent Glass Alternative to Plastic Optics
- Ideal for Weight and Space Sensitive Applications
![EAGLE XG® Windows](https://productimages.edmundoptics.com/9771.jpg?w=305&quality=80)
- Thin 0.7mm EAGLE XG® Substrates
- High Chemical Resistance and Excellent Durability
- Low Density for Weight Sensitive Applications
![High Durability Anti-Reflection (HDAR) Coated Fused Silica Windows](https://productimages.edmundoptics.com/21238.jpg?w=305&quality=80)
- HDAR Coating Achieves Severe Abrasion Requirements of MIL-C-675C
- Low Reflectivity Across the VIS-NIR
- Ideal for Use in Harsh Environments
- Uncoated Fused Silica Windows Also Available
![High Durability Anti-Reflection (AR) Coated Sapphire Windows](https://productimages.edmundoptics.com/9788.jpg?w=305&quality=80)
- 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
![ISP Optics Magnesium Fluoride (MgF<sub>2</sub>) Windows](https://productimages.edmundoptics.com/20351.jpg?w=305&quality=80)
- Excellent Transmission from 0.12 to 7μm
- Rugged and Durable
- Resistant to Chemical Etching
![ISP Optics Barium Fluoride (BaF<sub>2</sub>) Windows](https://productimages.edmundoptics.com/20352.jpg?w=305&quality=80)
- Excellent Transmission from 0.2 - 12μm
- Resistant to High-Energy Radiation
- High Transmission without AR Coatings
![ISP Optics Calcium Fluoride (CaF<sub>2</sub>) Windows](https://productimages.edmundoptics.com/20353.jpg?w=305&quality=80)
- Greater than 90% Transmission from 350nm-7μm
- Low Index of Refraction
- Low Solubility and Chemically Inert
![ISP Optics Sapphire Windows](https://productimages.edmundoptics.com/20354.jpg?w=305&quality=80)
- High Corrosion Resistance and Thermal Stability
- Higher Durability than Glass Windows
- Transmission from 0.33 – 5.5µm
![ISP Optics Fused Silica Windows](https://productimages.edmundoptics.com/20356.jpg?w=305&quality=80)
- Excellent Thermal Stability
- Low Auto-Fluorescence
- IR Grade Fused Silica
![ISP Optics Quartz Windows](https://productimages.edmundoptics.com/20357.jpg?w=305&quality=80)
- High Transmission from 190 - 3500nm
- High Chemical Resistance
- Low Coefficient of Thermal Expansion
![ISP Optics Potassium Bromide (KBr) Windows](https://productimages.edmundoptics.com/20358.jpg?w=305&quality=80)
- Excellent Transmission from 0.25 – 26μm
- Good Resistance to Mechanical Shock
- Ideal for FTIR Spectroscopy
![Ultra-Thin Fused Silica Windows](https://productimages.edmundoptics.com/20563.jpg?w=305&quality=80)
![TECHSPEC® components are designed, specified, or manufactured by Edmund Optics.](/Assets/images/logo-techspec-product.gif)
- Ultra-Thin 0.20mm Thickness
- UV Fused Silica Substrates
- Extremely Lightweight
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