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Filters: wide bandpass

Filters: wide bandpass

Product catalog summary
Product Overview:
Umicore Coating Services provides a wide bandpass filter designed for the 8-12um wavelength range. The filter is constructed using a germanium substrate and is engineered to isolate a wide spectral band while maintaining high peak transmission.
Specifications:
  • Transmission: Typically greater than 85% within the passband.
  • Attenuation: Typically less than 0.1% outside the passband.
  • Edge Slopes: Typically between 3% and 5%.
Application:
The wide bandpass filters are suitable for applications requiring isolation of a wide spectral band with high transmission efficiency. They are available for wavelengths ranging from 1um to 15um.
Environmental Standards:
  • Adhesion: Complies with MIL-C-48497A, 08/09/1980, para 4.5.3.1, using a tape test.
  • Abrasion: Complies with MIL-C-48497A, 08/09/1980, para 4.5.3.3, with moderate resistance, tested with 50 strokes using a cheesecloth.
  • Humidity: Complies with MIL-C-48497A, 08/09/1980, para 4.5.3.2, tested for 24 hours at 48°C with 95% relative humidity.
Transmission Profile:
The document includes a graph illustrating the transmission percentage across the 7-13um wavelength range, showing high transmission within the specified band.
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Catalog excerpts

Filters: wide bandpass-1

Wide Bandpass Filter for 8-12um Information Sheet Application Wide bandpass filters are designed to isolate a wide spectral band and exhibit high peak transmission in the passband. TypicallyT>80% average. Available wavelengths are 1um – 15um. Substrate Germanium Attenuation Typically <0.1% outside the passband. 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 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

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