Electro-Optics, Enclosures, Products & Instrumentation

Optical Filters

 

 

 

 

Sets of longpass absorption filters

We offer four sets of technical grade longpass absorption filters covering the UV to NIR spectral range. These filters transmit more than 80% of the light at 0o AOI and have no AR coating. These sets enable tailoring the passband to a specific machine vision application. Unlike interference filters, these filters enable large FOV, and are used to enhance contrast when the blue-shift effect is a problem. The filters can be supplied as round windows with a 12.5mm or 25mm diameter, or as 50mmX50mm square windows. There are four types of sets:
UV - 9 longpass filters 2mm thick: 220,240,260,280,300,320,340,360,380 nm.
LVR - 10 longpass filters 2mm thick: 400,420,450,470,490,510,535,550,565,580 nm
TVR - 9 longpass filters 2mm thick: 600,610,630,640,650,670,685,700,720 nm
NIR - 5 longpass filters 3mm thick: 760,780,800,830,850 nm

 

 UV Cut-on Absorption filter set
CSTM P/N   Description
FS-UV-CO-12.5D-G   12.5mm Dia. X 2mm Thick - 9 longpass filters covering the 200-400nm spectral range a
FS-UV-CO-25D-G   25mm Dia. X 2mm Thick  - 9 longpass filters covering the 200-400nm spectral range a
FS-UV-CO-50S-G   50mm X 50mm X 2mm Thick - 9 longpass filters covering the 200-400nm spectral range a

  

 Low Visible range Cut-on Absorption filter set
CSTM P/N   Description
FS-LVR-CO-12.5D-G   12.5mm Dia. X 2mm Thick -10 longpass filters covering the 400-580nm spectral range a
FS-LVR-CO-25D-G   25mm Dia. X 2mm Thick  - 10 longpass filters covering the 400-580nm spectral range a
FS-LVR-CO-50S-G   50mm X 50mm X 2mm Thick -10 longpass filters covering the 400-580nm spectral range a

 
 

Top Visible range Cut-on Absorption filter set
CSTM P/N   Description
FS-TVR-CO-12.5D-G   12.5mm Dia. X 2mm Thick - 9 longpass filters covering the 600-720nm spectral range a
FS-TVR-CO-25D-G   25mm Dia. X 2mm Thick  - 9 longpass filters covering the 600-720nm spectral range a
FS-TVR-CO-50S-G   50mm X 50mm X 2mm Thick - 9 longpass filters covering the 600-720nm spectral range a

 

Near IR range Cut-on Absorption filter set
CSTM P/N   Description
FS-NIR-CO-12.5D-G   12.5mm Dia. X 3mm Thick - 5 longpass filters covering the 760-950nm spectral range a
FS-NIR-CO-25D-G   25mm Dia. X 3mm Thick  - 5 longpass filters covering the  760-950nm spectral range a
FS-NIR-CO-50S-G   50mm X 50mm X 3mm Thick - 5 longpass filters covering the  760-950nm spectral range a

 
 

 

 

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