IR Filter Optische Fenster

IR Filter

IR Filter for optical systems and instruments

Customized Design

Gas Detection

Germanium Silicon Saphire

Filter Materials

IR filters with a high-quality PVD coating with high transmission in the application area.

  • Germamium filter
  • Silicon filter
  • Saphire filter

Filter designs

  • bandpass filter
  • longpass filter
  • shortpass filter
  • 0,8-12 µm


Filter Applications

Measurement of environmental influences with IR filter from Pleiger Laser Optics with high peak transmission and high blocking of the VIS and LWIR range. Available on all materials which are transparent in IR.

  • Thermal imaging
  • Gas detection

Gas analysis

  • H2O
  • CH4
  • CO2
  • CO
  • N2O
  • O3

Benefits of our products:

  • flexible production
  • customized optics
  • high durability
  • experience and expertise

Material properties:

Germanium: Transmission 8-14 µm

Silicon: Transmission 1,2 – 7 µm

Saphire: Transmission 0,2 – 5,5 µm

Do you need further information on IR optics?

Please contact us.

+49 2324 398406

Pleiger Laseroptik is a member of the Pleiger Group. More information at

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