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Specifications
Material
IR grade CaF2
Diameter Tolerance
+0.0~-0.25mm
Thickness Tolerance
\0.25mm
Radius Tolerance
\1%
Surface Quality
S/D=10/5 laser quality
Surface Figure
λ/10@ 633nm
Clear Aperture
>85%
Centration
<5 minutes(f+50mm) or <3 minutes(f>50mm)
Chamfer
0.25mm at 45<typical
Coating
Optional
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