Long Wave Pass Filter for 8-12um Information Sheet Application Long wavepass filters are designed to achieve efficient separation of adjacent spectral bands. The cut-on edge of the filter may be located between 0.85 and 11 microns. Substrate Germanium Transmission Typically >90% at wavelengths longer than the cut-on edge. Extent of transmission region is typically in the ratio of 2:1 Attenuation Typically <0.1% at wavelengths shorter than the cut-on edge. Edge Slopes Typically between 3% and 5% 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