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Plano concave lens


Diameter Available
2mm--120mm
Diameter Tolerance
+/-0.02mm
Thickness Tolerance
+/-0.02mm
Focal Length Tolerance
+/-1%
Surface Accuracy
L/4 irregularity @632.8nm
Surface Quality
20-10 S/D
Centration
<3 arc min
Clear Aperture
>90%
Bevel
Protective bevel
Material
BK7,Fused silica, and SF11, etc.
Coating
AR coating or BBAR

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