|
Windows |
|
|
Diameter |
D1--D450mm |
|
Material |
Optical glass, quartz glass, CaF2, MgF2, Ge, Si, ZnS, |
|
Thickness |
0.3mm（D150mm） |
|
Surface quality |
10-5 |
|
Surface error |
λ/40--λ/10 |
|
Parallelism |
4--10 arcsec |
|
TTV |
5um |
