Optical Window Manufacturing

  • Sizes from <5mm to >150mm

  • Wide Variety of Optical Substrates

  • Anti-Reflective Coatings from the UV to IR

  • Superpolishing for RMS Surface Roughness <0.5Å


Edmund Optics® is a leading manufacturer of optical windows for both volume production and prototyping. A vast range of materials, sizes, and coatings provide options for nearly any optical application. Whether you need large volumes of anti-reflection-coated windows for production, small quantities of infrared windows for prototyping, or superpolished windows for precise laser applications, we have a solution for you. Our design and manufacturing experts are ready to support you throughout your entire development process. What can we make for you?


Window Manufacturing Capabilities
  CommercialPrecisionHigh PrecisionLaser Grade
Dimensional Tolerance +0/-0.100mm +0/-0.025mm +0/-0.010mm +0/-0.010mm
Thickness ±0.100mm ±0.050mm ±0.010mm ±0.010mm
Clear Aperture 80% 90% 90% >90%
Surface Flatness (P - V) 1.0λ λ/4 λ/10 λ/10 to λ/20
Bevel (face width @ 45 degrees) <1.0mm <0.5mm <0.25mm <0.25mm
Surface Quality 80-50 40-20 20-10 10-5

Understanding Optical Windows

Master the basics of optical windows including glass types, material properties, surface specifications, and coatings.

Optical Coatings

  • Over 900 Coating Designs from 120nm to 20µm

  • UV, Visible, NIR, SWIR, and LWIR Spectral Ranges

  • Single and Multi-Layer Anti-Reflection, Filter, Polarizing, and Metallic Designs

  • Hundreds of Stock and Custom Optical Coating Options

Learn More

Manufacturing Equipment

  • Conventional and High-Speed Grinding Machines
  • Conventional and High-Precision Polishing Machines
  • Double-Sided Lapping Machines
  • Slicing Machines


Optical Prisms Equipment

Learning Resources

Application Notes

Technical information and application examples including theoretical explanations, equations, graphical illustrations, and much more.

Understanding Optical Windows

Advantages of Silicon for Mid-Wave Infrared Windows

An Introduction to Optical Coatings

Edmund Optics Preferred Glass Types

Understanding Optical Specifications

The Correct Material for Infrared (IR) Applications

Trending in Optics

The future depends on optics through technological and application advancements. Edmund Optics® continues to embrace the future by providing information on trending products and technologies.

Superpolished Optics


Informative corporate or instructional videos ranging from simple tips to application-based demonstrations of product advantages.

EO Global Manufacturing Facilities

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Optical Windows Review

Technical Tools

Technical calculators based on commonly used and referenced equations in the Optics, Imaging and Photonics industries.

Beam Displacement Calculator


Recorded webinars from Edmund Optics® experts on a wide range of optics and imaging topics.

Ultra-Low Surface Roughness Polishing and Metrology

Nano-Structured Anti-Reflective Surfaces

Selecting the Right Window

Contact our team of optical manufacturing engineers to ensure you receive windows that meet your specific needs within your budget.


  • Protect Sensitive Optics and Sensors from Contamination and Damage
  • Wide Range of Glass and Plastic Substrates
  • Options for Applications Requiring High Durability or Large Temperature Ranges

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How can we help meet your
budget, performance, and schedule requirements?