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American Owned & Operated
Committed to supporting American industry and ensuring the highest-quality production standards.
Specifications
|
Diameter Tolerance |
+/- 0.125 mm |
|
Thickness Tolerance |
+/- 0.125 mm |
|
Surface Quality |
20-10, scratch-dig or better |
|
Clear Aperture |
90% |
|
Edges |
Fine ground and beveled* |
*parts under 25.4mm in diameter may not have beveled edges
Precision Flat Windows, N-BK7 Optical Glass
Esco PN:Our precision N-BK7 laser quality round windows range from 0.25 waves (λ/4) to 0.10 wave (λ/10) flat. Catalog parallel specifications are either 5" arc seconds or 10' arc minutes. Ideal for interferometer flats, laser windows, beamsplitter substrates, and parallel plates.
Note: Flatness and Paralellism units are are expressed as (waves - arc min)
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