| Magnesium Fluoride
has excellent transmission in the UV to NIR (120nm
- 6 um). MgF2 is relatively soft and somewhat hygroscopic
so polishing, coating and handling are more critical
than for Fused Silica windows.
| Optical
MgF2 Windows |
High
Precision |
Standard
|
| Specifications |
|
|
|
Diameter Tolerance |
+0.0/-0.1mm |
+0.0/-0.1mm |
| Thickness
tolerance |
¡À0.2mm |
¡À0.2mm |
| Clear
Aperture |
>80% |
>80% |
| Parallelism |
<10
seconds |
3' |
| Surface
Quality |
20-10
scratch and dig |
80-50
scratch and dig |
| Wavefront
Distortion |
¦Ë/10
per 25mm at 632nm |
2¦Ë
per 25mm at 632nm |
| Bevel |
< 0.25mm¡Á45¡ã |
<0.25mm¡Á45¡ã |
Note: We can provide UV grade and IR grade MgF2
window at custom size.
|
