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Infrared Neutral Density Filter, 25.4 mm, 1.0 OD, ±3% Tolerance

Infrared Neutral Density Filter, 25.4 mm, 1.0 OD, ±3% Tolerance

Model: FIR-ND10

$852

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Product Series Overview

Infrared ND Filters

The FIR-ND10 Infrared Neutral Density Filter is a 1 inch (25.4 mm) diameter infrared neutral density filter with an optical density of 1.0, and ±3% 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

Ø25.4 mm
Wavelength Range

2000-5000 nm
Optical Density

1
Transmission

10% @ 3.5 μm
Transmission Tolerance

±1.0%
Material

Optical grade germanium
Coating Type

Vacuum deposited metal alloy

Size Tolerance

±0.2 mm
Thickness

1.0 mm
Thickness Tolerance

± 0.2 mm
Surface Quality

80-50 scratch-dig
Clear Aperture

All but 1.5 mm outer rim
Parallelism

3 to 5 arc min (0.8 to 1.5 mrad)

Size

Ø25.4 mm
Wavelength Range

2000-5000 nm
Optical Density

1
Transmission

10% @ 3.5 μm
Transmission Tolerance

±1.0%
Material

Optical grade germanium
Coating Type

Vacuum deposited metal alloy

Size Tolerance

±0.2 mm
Thickness

1.0 mm
Thickness Tolerance

± 0.2 mm
Surface Quality

80-50 scratch-dig
Clear Aperture

All but 1.5 mm outer rim
Parallelism

3 to 5 arc min (0.8 to 1.5 mrad)

Resources & Downloads

Other

FIR-ND10 RoHS Certificate (265.3 kB, PDF)

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