Filters And Lenses; Filters - Daheng Imaging MERCURY2 GigE Series User Manual

6.Filters and Lenses

6. Filters and Lenses

6.1. Filters

The MERCURY2 color models are equipped with IR filters. The thickness of the filter is 0.7± 0.05mm, and
the cut-off frequency is 700nm, which reduces the influence of invisible light on the image. The
monochrome models are equipped with transparent glasses. Remove IR-filters or transparent glasses will
defocus the image plane.
Contact our technical support when the glass needed to be removed.
Figure 6-1 Infrared cut-off filter transmittance curve for MERCURY2 series color camera
Figure 6-2 Transparent glass reflectance curve for MERCURY2 series mono camera
© China Daheng Group, Inc. Beijing Image Vision Technology Branch 66