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American Owned & Operated
Esco Optics is a leading manufacturer of custom and catalog optics, precision optical components, and ITAR optics in the United States.
Commercial Quality Windows, Square, N-BK7 Optical Glass
Esco PN:|
Diameter Tolerance |
+/- 0.125 mm |
|
Thickness Tolerance |
+/- 0.125 mm |
|
Surface Accuracy |
1.0-3.0 mm thickness ≤ 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, welding window substrates. Esco carries a complete inventory of square commercial optical windows of N-BK-7 Optical Glass.
Would you like to modify a catalog part to better suit your requirements? Please use our online quote tool to get an estimate on a custom part.
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Military & Defense Supplier
As the leader for military and defense optics in the United States, Esco Optics adheres to the International Traffic in Arms Regulations.
ITAR Registered & Compliant
ITAR registered and compliant, Esco manufactures ITAR optics for all of its customers with the strictest confidentiality.