N-BK 7 Windows

Manufactured in the USAManufactured in the USA


BK 7 Windows are a capability of Guild Optical Associates. BK 7 glass is useful for less rugged environments that need good UV and Visual spectrum performance. Custom sizes are manufactured to your exact specifications creating a cost effective window for your custom optical application. BK 7 windows are your cost effective option from Guild Optics.


Diameter: From 1 mm (.039″) to 228.6 mm (9″)
Thickness: Nearly any thickness; varies by diameter
Surface Quality: Down to 40/20 Scratch/Dig
Transmission 250nm – 2600nm
Quantities: From singles to full production runs

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