• Attenuate IR radiation from 2 to 14 µm (optimized for 2 to 5 µm)

• Spectrally neutral throughout usable range

• Precision Germanium substrate 

Optimized for 2 to 5 µm, these filters attenuate IR radiation from 2 to 14 µm. These one-inch diameter filters are made from germanium substrates coated with a spectrally neutral vacuum deposited metal alloy reflective coating.