Transmission (including surface reflections) is plotted as a function of wavelength to the right. The region shaded in blue represents the range over which this filter is transmissive. At wavelengths shorter than the cut-on wavelength, the filter blocks the light. Thorlabs' Mounted Longpass Colored Glass Filters are manufactured from different colors of Schott glass and are intended for use in a wide variety of applications. The SM1-mounted (1.035"-40), Ø25 mm filters will thread into our filter wheels or any of our lens tube accessories. The housing is engraved with the part number and longpass cut-on wavelength for easy identification. The filters are also available unmounted.
|Material||Schott Colored Glass|
|Clear Aperture||80% of Diameter|
|Thickness Tolerance||+0.0 mm/-0.4 mm|
|Surface Quality||40-20 Scratch-Dig|
|Surface Flatness||<λ @ 633 nm|