|
Substrate Material: |
BK7 optical glass |
|
Outer Diameter: |
50.8,+/-0.2mm |
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Thickness: |
12.0,+/-0.1mm |
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Surface Quality: |
Double side fine polished; 40-20 scratch and dig |
|
Flatness: |
<Lambda/10 @ 633nm over surface(every 25mm area) |
|
Chamfer: |
<0.2mm x 45 deg protection |
|
Coating: |
Single side silver coating, with SiO protection; Back surface polished/uncoated |
|
Reflectivity: |
Ravg>96% from 400nm-700nm, Ravg>96% from 700nm-2.0um |
|
Clear Aperture: |
>90% of reflective surface |
| Parallelism: |
<3 arc minutes |
|
Damage Threshold: |
0.5J/cm2 (10ns pulse) |
|
Packaging: |
Vacuum packaged(sealed) | |