|
Material
|
BK7, Fused Silica, and other optical glasses
|
|
Dimension Tolerance
|
+0/-0.1mm
|
|
Clear Aperture
|
>90%
|
|
Angle Tolerance
|
60deg±3 arc minutes
|
|
Surface Quality
|
60/40 scratch and dig
|
|
Flatness
|
<λ/4@632.8nm
|
|
Chamfer
|
Protective
|
|
Coating
|
AR
|
