6.Filters and Lenses
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 108
6.
Filters and Lenses
6.1.
Filters
The MERCURY color models are equipped with IR filters. The thickness of the filter is 0.7±0.05mm, and it
can filters out light waves above 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. The MER-203-30GC-P-L-F03 model are equipped with band-pass (BP) filters.
The thickness of the filter is 0.5±0.05mm, and it can pass light waves between 820~860nm.
Contact our technical support when the glass needed to be removed.
Figure 6-1 Infrared cut-off filter transmittance curve for MERCURY series color camera
Figure 6-2 Transparent glass reflectance curve for MERCURY series mono camera