ALLIED Vision Technologies Prosilica GC2450 - Manual (Page 41)

Prosilica GC Technical Manual V2.0.8
41
Filter
Filter
All Prosilica GC 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 GC cameras.
Figure 28: 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