Commercial Grade Optical Windows

Click here for Precision Grade Optical Windows

Optical windows are available in two grades (precision and commercial) to meet various specific applications. Our double sided optical flats may also be used as windows and further information can be found on our optical flats page.

Advanced Optics commercial grade windows offer a low-cost alternative to ultra-high precision optics. They are made of either soda lime glass or Borofloat and flat to 1-3 waves per inch. Our windows may be ordered either uncoated or with an anti-reflective coating. Other optical glasses such as B270 and low iron glass available upon request.

Square and Rectangular Optical Window Specifications

  • S1: Flatness 1-3 waves per
  • 25.4mm80/50 scratch/dig
  • S2: Commercial finish
  • Dimensions: +/-0.5mm
  • Thickness: +0.5mm/-1.5mm
  • Material: Optical grade glass
  • Coating: None


Length Width Thickness
25.4mm 25.4mm 6.35mm
25.4mm 38.1mm 6.35mm
25.4mm 50.8mm 6.35mm
25.4mm 76.2mm 6.35mm
25.4mm 101.6mm 6.35mm
50.8mm 50.8mm 6.35mm
50.8mm 76.2mm 6.35mm
50.8mm 101.6mm 6.35mm
76.2mm 76.2mm 6.35mm
76.2mm 101.6mm 6.35mm
101.6mm 101.6mm 6.35mm

Round Optical Window Specifications

  • S1: Flatness 1-3 waves per 25.4mm
  • 80/50 scratch/dig
  • S2: Commercial finish
  • Diameter: +/-1.0mm
  • Thickness: +0.5mm/-1.5mm
  • Material: Optical grade glass
  • Coating:  None
Diameter Thickness
25.4mm 5.7-6.35mm
38.1mm 5.7-6.35mm
50.8mm 5.7-6.35mm
76.2mm 5.7-6.35mm
101.6mm 5.7-6.35mm
152.4mm 5.7-6.35mm

In addition to our in-stock commerical grade optical windows, Advanced Optics provides custom fabrication and free engineering services. We can provide custom sizes, shapes, apply bevels and even drill holes to meet various demanding applications. Need a custom coating? No problem.

Contact Advanced OpticsContact us at (262) 548-1155 or email. Our engineers are waiting to serve you.