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Credit Card Order Request a Quote Longpass Shortpass Bandpass Filter Links 3rd Millennium Microscopy Astronomy Flow Cytometry Raman Colour Imaging Bandpass Long/Shortpass Rejection band Dichroic Neutral Density Laser Line Analytical Engineering Cleaning Filters 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; Longpass Filters Bandpass Filters Fluorescence Filter sets 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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