f=-529.6nm, dia30mm, uncoated, UVFS, Negative Meniscus Lense(NML)

Common Specifications

Material UVFS
Surface Flatness < λ/4 @ 633nm
Scratch/Dig < 40/20 (both sides)
Eccentricity ≤ 1arcmin
Focal Length Tolerance < ± 1%
Diameter Tolerance < + 0.00/ - 0.02mm
Thickness Tolerance < ± 0.05
Clear Aperture ≥ 95% of diameter
Coating:uncoated
Diameter Range 5~260mm