Double-Concave lens |
Material: BK7 Optical glasses,CaF2,BaF2, MgF2,Ge,Si,Fused Silica
Diameter Tolerance: +0.0/-0.02mm
Thickness Tolerance: ± 0.01mm
Surface Accuracy: λ/4 @632.8nm
Surface Quality: 20-10
Centration: 1′
Clear Aperture: > 90%
Bevel: 0.2mm×45°
Coating: user-defined
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