Neutral Density Filter, Infrared, 25 mm, 3.0 OD, +0.08/-0.05% Tolerance

The NDIR10-30 Infrared Neutral Density Filter is a 1 inch (25.0 mm) diameter filter with an optical density of 3.0, and +0.08/-0.05 % transmittance tolerance. Optimized for 2 to 5 μm, this filter attenuates IR radiation from 2 to 14 μm. It is made from a germanium substrate and is coated with a spectrally neutral vacuum deposited metal alloy reflective coating.

Specifications

Technical Specs

Size
Ø25.0 mm
Wavelength Range
2000-5000 nm
Optical Density
3
Transmission
0.1%
Transmission Tolerance
+.08/-0.05%
Material
Germanium
Coating Type
Metallic Neutral Density
Size Tolerance
± 0.2 mm

Thickness
1.0 mm
Thickness Tolerance
± 0.2 mm
Surface Flatness
3-5 λ per inch
Surface Quality
60-40 scratch-dig
Clear Aperture
90 % of central diameter
Parallelism
< 10 arc minute

Size
Ø25.0 mm
Wavelength Range
2000-5000 nm
Optical Density
3
Transmission
0.1%
Transmission Tolerance
+.08/-0.05%
Material
Germanium
Coating Type
Metallic Neutral Density
Size Tolerance
± 0.2 mm

Thickness
1.0 mm
Thickness Tolerance
± 0.2 mm
Surface Flatness
3-5 λ per inch
Surface Quality
60-40 scratch-dig
Clear Aperture
90 % of central diameter
Parallelism
< 10 arc minute

Resources & Downloads

Other

NDIR10-30 RoHS Certificate(707.9 kB, PDF)

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