IR Atmospheric Window Filter

figure Leaky Green Filter
  • High transmission in NIR wavelengths
    There is a small amplitude in passband.
  • Flexibility of interference films design
    Multi bandpass design with different wavelengths is available.
  • Excellent environmental durability
    MIL-specifications compliant
    Interference film coated by magnetron sputtering technology has excellent durability against harsh environment.

The mid-wavelength infrared (MWIR) atmospheric window is required for thermal imaging applications.
We achieved the quadruple bandpass filter to make the atmospheric transmission derived from the solar spectral irradiance.