Narrow Bandpass Filters Information Sheet Application IR narrow bandpass filters are designed to isolate a narrow region of the infrared spectrum between 0.85um and 10um, and are used in a variety of application such as gas detection. Substrate Glass, Sapphire, Silicon, Germanium Depending upon the waveband of interest. Attenuation Typically <0.1% outside the passband. Bandwidths May be specified from 1% to 10% of centre wavelength Environmental Adhesion Abrasion Humidity Tape test Moderate, 50 strokes with a cheesecloth o 24hrs, 48 , 95% relative humidity Typical Transmission Profile Wavelength (um) Umicore Coating Services Kinnoull Street Dundee, DD2 3ED Tel: +44 1382 833022 Fax: +44 1382 833824 E-mail: [email protected] UCS reserves the right to amend or withdraw specifications without prior notice