Commercial Quality Windows, Square, Borofloat 33

Esco PN:
  • $ 1485


Diameter Tolerance

+/- 0.125 mm

Thickness Tolerance

+/- 0.125 mm

Surface Accuracy

5λ per inch

Surface Quality

60-40 Scratch-Dig or better

Parallelism

<15'

Edges

Fine ground and safety beveled*

Clear Aperture

85%


*parts under 25.4mm in diameter may not have beveled edges

Commercial windows are used for sight glasses, instrument windows, beamsplitter substrates, vacuum windows and welding window substrates. Esco carries a complete inventory of square commercial optical windows made from Borofloat 33 which is a direct equivalent to Pyrex, which is no longer manufactured. Windows are polished both sides.

Don't see a part that matches exactly what you need, perhaps you'd like to modify a dimension or add a coating?  Use our fast online quote tool to find out what a modification would cost. 

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