Optical windows are used to isolate different physical environments while allowing light to pass. The selection of a window should consider the properties of the different optical materials, transmission, wavelength range and resistance to the environment. We manufacture optical windows from N-BK7, UV grade fused silica and sapphire. Other glasses are available on a custom basis. We offer a variety of anti-reflection coatings that can be deposited on the windows.
Custom Made Capabilities:
|
Specification |
Standard grade |
High Grade |
|
Substrate |
N-BK7 |
N-BK7 |
|
Tolerance |
+0/-0.1mm |
+0/-0.02mm |
|
Flatness (TWF) |
Lambda/2 @632.8nm |
Lambda/10@632.8nm |
|
Surface quality |
40-20 |
20-10 or 10-5 |
|
Thickness tolerance |
+/-0.1 |
+/-0.1 |
|
Parallelism |
<1 arc min |
<10 arc seconds |
|
Bevel |
0.2 |
0.2 |
