Far Infrared Bandpass Filter

The neutral wavelength of the far-infrared bandpass filter produced by our company is generally in the range of 2.0μm~25μm, using silicon, germanium, sapphire, magnesium fluoride, and calcium fluoride as the base material for coating. The peak value of the filter can reach more than 75%. The product has a deep cut-off rate and a steep cut-off band, and can be customized according to customer requirements. Products are mainly used in: infrared measurement, infrared thermometer, infrared thermal imager, gas detector.