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Edge Filters

Edge filters separate a broad spectrum of light into two components: a transmitted and a blocked component.

These filters are defined by either a cut-on or a cut-off slope, which provides the transition between a high blocking region and a high transmission region. Cut-on and cut-off edges are typically defined by long wave or short wave pass filter coatings.


  • Versatile
  • Analyzers for clinical chemistry
  • Various process controls, e.g. during grain harvest


  • High edge steepness
  • High blocking and transmission
  • High temperature stability
  • Cut-on / cut-off wavelengths from 400 nm to 1000 nm
  • Blocking up to DUV (long pass filter) or 1200 nm (short pass filter)

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