6.Filters and Lenses
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 39
6.
Filters and Lenses
6.1.
Filters
The MARS 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 MARS series color camera
Figure 6-2 MARS series mono camera transmittance curve
