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UME-0021-03 SU2020/SU2025
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By setting the offset, you can set the Y-intercept arbitrarily. DF shows the digital
offset value. The gradient of the line does not change.
Figure 4-8-2 Offset Adjustment
Adjust amount of offset in accordance with the requirements of your camera
system.
4.9 Setting Gain
The camera can adjust the analog gain (x1 to x11.2 in 21 steps) and the digital
gain. As shown in the figure below, increasing the gain setting increases the
gradient of the camera
’s response curve and results in a higher camera output for
a given amount of light. Analog gain can be changed by sending the
”gax”
command. Digital gain can be changed by sending the
“gdx” command.
Figure 4-9-1 PGA Gain Adjustment
Gain and noise values are proportionally related.
Adjust the amount of gain in accordance with the requirements of your camera
system.
Output
DF : Offset Value
ＤＦ
Amount of
Incident Light
(lx
・
s)
Ｆｓ
Fs : Saturation Output
Gain a
Amount of Incident
Light (lx
・
s)
(a<b<c)
Gain b
Gain c
