We supply aspherical lens. Specification of aspherical lens as follow: Material:BK7 or other optical material Size:10mm-200mm Fringes:lambda/2 Center Thickness:15nm-25nm Dispersion round:0.03mm-0.2mm Centration:3 arc min Surface Quality:60-40 Scratch/Dig Clear Aperture:90% Coating:Available upon Request
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