JAI CV-M 9CL Operation Manual page 26

Knee function. KN=0, KN=1.
If KN=1 is received the knee function is enabled.
With the knee functions is possible to change the relation between CCD signal and the resulting
output video signal. With the function disabled, the transfer slope is 1:1.
The level where the slope should be changed is set with the knee point settings. Its range is from
0 to 1023 related to the video output. Factory setting is 890. (100%).
From the knee point and up, the slope can be changed from the normal 1:1. The slope
parameter range is from 0 to 4095, where 0 is slope 1:0, 2048 is slope 1:1, and 4095 is slope 1:2.
The slope range is from 0 to 2, where 0 is completely limitation (or clipping) and 2 is contrast
expanding. Factory setting is 800. The slope is then 800/2048 or 0.39
For details refer to 6.1.2. Knee function.
Knee point red. KPR=0 through KPR=1023
Knee point green. KPG=0 through KPG=1023
Knee point blue. KPB=0 through KPB=1023
Knee slope red. KSR=0 through KSR=4095
Knee slope green. KSG=0 through KSG=4095
Knee slope blue. KSB=0 through KSB=4095
Shading Mode. SDM=0, SDM=1.
If the command SDM=1 is received, the shading corrector is enabled. This corrector will
compensate for the color shading caused by the prism, for the circular shading caused by the
lens vignetting and for CCD sensor shading.
The parameters for shading corrections are factory loaded with a given lens and f-number.
For details refer to 6.1.1. Dynamic shading correction.
For customoized shading correction, please refer to chapter 6.5.1. Customized shading
correction.
LED for power and trigger.
On the camera rear a Light Emitter Diode is found. The light will be green when power is
connected. For trigger pulse input an amber flash will be seen.
Iris video output.
On pin 4 on the 12 pin Hirose connector an analog
video signal is found. It can be used for iris
regulation if the camera is in continuous or RCT
mode.
The curve shows the relation between the CCD
signal output and the iris video output.
100% video is 700 mV. The iris video output is
without sync.
CV-M9 CL
[mV] [mV]
930 930
700 700
0 0
Fig. 32. Iris video output.
- 25 -
Iris Iris
video out video out
0 0
White White
clip level clip level
100% 100%
level level
CCD out CCD out
>265 [mV] >265 [mV]
2 2 00 00