Description
|
Material
|
Crystal Quartz
|
|
Dimension Tolerance
|
+0/-0.2mm
|
|
Thickness Tolerance
|
±0.005mm
|
|
Surface Quality
|
20/10 scratch and dig
|
|
Clear Aperture
|
>90%
|
|
Wavefront Distortion
|
|
|
Parallelism
|
<5 arc seconds
|
|
Thickness
|
T=0.5mm, 1mm, 1.5mm, 2.0mm
|
|
Coating
|
None
|
