Circularly Variable Metallic Neautral Density Filters

Specifications:

Material: BK7 grade A, fine annealed or UV grade fused silica
Outside Diameter: 50 ±0.25 mm
Inside Diameter: 8±0.25 mm
Thickness: 1.5±0.20 mm
Clear Aperture >80% of diameter
Linearity of Density: ±5%
Coating: S1: Ni-Cr-Fe, S2: Broadband AR coated, Rave < 0.5% for 440-700nm at 0-15°
Damage Threshold: 30 W/cm2 CW, 10 mJ/cm2 with 10 nsec pulses

Other sizes can be furnished upon request.

P/N Relative Density Range NDCF-0.1 0.0-0.1

P/N Relative Density Range NDCF-2.0 0.0-2.0

P/N Relative Density Range NDCF-3.0 0.0-3.0