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