High quality UV Metal coated Neutral Density (ND) Filter

Neutral Density (ND) Filters are often used in imaging systems and laser systems to avoid the damage to camera sensors or other optical components by  high power light. ND Filters are designed to reduce transmission of partial light evenly either by absorbing or reflecting the light.

Material:UV Fused Silica

Transmitted Wavefront error:λ/ 4 @ 633 nm

Parallelism:＜30 arcsec

Surface Quality:20-10

Diameter Tolerance:＋0.0/-0.1mm

Thickness:2mm ±0.2mm

Applied Wavelength Range:200~1200nm

Optical Density Tolerance:±5% @300nm

CA:＞90%