|
Diameter Available
|
3mm--100mm
|
|
Diameter Tolerance
|
+0/-0.5mm
|
|
Thickness Tolerance
|
+/-0.05mm
|
|
Focal Length Tolerance
|
±1%
|
|
Surface Accuracy
|
/4 irregularity @632.8nm
|
|
Surface Quality
|
40-20 S/D
|
|
Centration
|
＜3 arc min
|
|
Clear Aperture
|
＞90%
|
|
Bevel
|
Protective bevel
|
|
Material
|
BK7, Fused silica, and other optical glass
|
|
Coating
|
AR coating
|
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