| |
Germanium effective IR
optical window operation ranges from 3-5 microns
and 8-12 microns. Germanium is popular for its high
refraction, strength and thermal conductivity, widely
used in lasers and imaging systems.
| Optical
Ge 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 |
40-20
scratch and dig |
80-50
scratch and dig |
| Wavefront
Distortion |
¦Ë/4
per 25mm at 632nm |
2¦Ë
per 25mm at 632nm |
| Bevel |
< 0.25mm¡Á45¡ã |
<0.25mm¡Á45¡ã |
|
