Bandpass filters

The 3rd Millennium Bandpass filters combine a patented, hermetic physical assembly with proprietary ALPHA Technology. A process which produces exceptionally steep cut-on and cut-off slopes. This results in more precise location of the cut-on and cut-off points, the ability to place transmission and rejection regions extremely close together, and higher attenuation between the pass band and the rejection band.

For further details and prices, please click on Request Information or E-mail us.

3rd Millennium Bandpass Filters are available in the following configurations:

Filter Type

Wavelength Range

Bandpass 

400 - 790nm every 10nm 

Bandpass 

800 - 1100nm every 50nm 

Bandpass Filter Specifications:

  • Assembly Diameter: 25mm
  • Assembly Thickness: 5.5mm
  • Tolerance : ±3nm
  • Blocking Range: UV to Cut-on
  • Blocking OD: OD 12 avgOD 6 min
  • Transmission : > 80% peak
  • Clear Aperture: 21.3mm
  • Substrates: SiO2 substrate with a broadband anti-reflection coating