Moderate power broadband UV neutral density filters with uniform wavelength attenuation; 250 - 2500 nm. With minimal variation in attenuation with wavelength over a broad wavelength band, these UV filters coated with Inconel metal alloy on fused silica offer dependable performance for moderate power applications. They are available in a wide range of OD's and sizes for use at wavelengths from 250 - 2500 nm.
Product Code: NDQ
Material: Standard Grade Corning 7980 1-F or equivalent (Fused Silica)
Dimension Tolerance: ±0.2mm
Diameter Tolerance: +0/-0.25mm
Thickness Tolerance: 2.0 ± 0.2mm
Surface Quality: 80-50 scratch-dig per MIL-PRF-13830b
Surface Flatness: < 3λ p-v at 633nm per 25mm
Density Tolerance: ±5% of optical density at 546nm
Accuracy of Spectrophotometer Curves: Between 200nm and 700nm ±1% of full scale