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3rd Millennium Shortpass Filters

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3rd Millennium Shortpass Filters

The 3rd Millennium Shortpass filters combine a patented, hermetic physical assembly with proprietary ALPHA Technology. A process which produces exceptionally steep cut-off slopes. This results in more precise location of 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.

3rd Millennium filters are also available as;

for more details please click on the appropriate area.

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

Filter Type

Wavelength
Range

Tolerance

Transmission

Blocking Range

Blocking OD

Size

Shortpass

Cut-off

 

 

 

400 - 700nm
every 10nm

+ 3nm

> 90% peak

Cut-off
to 1.3x cut-off*

OD 12 avg
OD 6 min

25mm

700 - 800nm
every 20nm

+ 3nm

> 90% peak

Cut-off
to 1.3x cut-off*

OD 12 avg
OD 6 min

25mm

800 - 1100nm
every 50nm

+ 3nm

> 90% peak

Cut-off
to 1.3x cut-off*

OD 12 avg
OD 6 min

25mm

How To Specify a Filter:

Shortpass Filter - specify a cut-off wavelength (Example: Part Number - 3RD 520SP)

Filter Specifications:

Assembly Diameter: 25mm
Assembly Thickness: 5.5mm
Clear Aperture: 21.3mm
Substrates: SiO2 substrate with a broadband anti-reflection coating.

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