ALLIED Vision Technologies Prosilica GS2450 - Manual (Page 21)

Prosilica GS Technical Manual V2.0.5
21
Filters
Filters
All Prosilica GS color models are equipped with an infrared block filter (IR fil-
ter). This filter is employed to prevent infrared wavelength photons from pass-
ing to the sensor. In the absence of IR filter, images are dominated by red and
incapable of being properly color balanced. Monochrome cameras do not
employ an IR filter.
The figure below shows the filter transmission response for the IRC30 filter
employed in the Prosilica GS cameras.
Figure 9: IRC30 filter transmission response
60
70
80
90
100
0
10
20
30
40
Transm
ission [%]
Wavelength [nm]
50
350 450 550 650 750 850 950