N-BK7 Windows Product
BK7 optical windows are ideally suited for industrial applications. Available uncoated or with a MgF2 anti-reflection coating, windows are often used as a protective element between two environments.
Bk7 windows specifications
Diameter
0.2-300mm
Thickness
0.1-100mm
Dimension tolerance
+/-0.02mm
Surface quality (scratch & dig)
20/10 or better
Clear aperture
>85%, >90%
Surface accuracy
λ/10
Parallelism
<30 arc sec
Bevel
0.1~0.3mm x 45 degree
Coating
AR, BBAR or Custom
