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Square Windows

Optola offers wide range of high quality Square Windows.

Custom design Square Windows are available upon request.

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Material	BK7 or UV fused silica
Diameter Tolerance	+0/-0.15mm
Thickness Tolerance	±0.25mm
Clear Aperture	＞Central 85% of diameter
Parallelism	＜5″
Surface Quality	20/10
Transmitted Wavefront	λ/10 @632.8nm
Chamfers	12.7 & 25.4mm:0.25-0.75mm face width x 45°±15° 50.8mm:0.38-1.14 mm face width x 45°±15°