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Interference Filters


Interference filters that use the interference effect to obtain spectral transmission are manufactured by depositing thin layers with different refractive indices onto a substrate.

SCHOTT supplies standard and customized interference filters within the spectral range of 200 nm to 3,000 nm. These products are developed, designed and manufactured according to customer specifications. Interference filters offer excellent climatic resistance and extremely stable spectral characteristics with respect to temperature and humidity changes.

Our product range comprises various types of interference filters:
  • Bandpass filters (narrowband and broadband filters)
  • Edge filters (longpass and shortpass filters)
  • Notch filters (from single to triple notch)
  • DUG 11: UV-transmittive filters without passbands at around 700 nm
  • Hard bandpass filters
  • i-line filters
  • VERIL linear variable filters
  • Hard (scratch-resistant) and broadband AR coated
  • Beamsplitters
  • Neutral density filters
  • Mirror coatings
  • Black coatings
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