The 5235 Neutral Density Filter is made with an Inconel metallic coating on a glass substrates. This 1.0 inch (25.4 mm) diameter ND filter provides 0.5 OD spectrally uniform attenuation over the wavelength range from 400 to 2000 nm. The reflective nature of the coating helps reduce thermal effects when this filters are used with moderate power lasers.
Технические характеристики
- Size Ø25.4 mm
- Wavelength Range 400-2000 nm
- Optical Density 0.5
- Transmission 32%
- Transmission Tolerance +6/-5%
- Material Schott Borofloat Glass
- Thickness 1.1 mm
- Surface Flatness 1 &lambda, @ 633 nm
- Surface Quality 40-20 scratch-dig
- Clear Aperture 21.5 mm
- Parallelism 0.5 mrad
