NED
37
UME-0054-01
XCM20160T2CXP
5.10 Setting Offset
In the figure below, the horizontal axis indicates the amount of incident light and the
vertical axis indicates the output.
Fs shows the output at saturation. Dd shows the output at darkness. (Both Fs and Dd
are digital.) Se shows the saturation current, or the amount of exposure when the
output saturates.
Figure 5-10-1 Saturation Exposure and Dark Current Outpu
t
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 5-10-2 Offset Adjustment
Adjust amount of offset in accordance with the requirements of your camera system.
Ｄｄ
Ｆｓ
Ｓｅ
Amount of Incident
Light (lx
・
s)
Output
Fs : Saturation Output
Dd : Dark Current
Se : Saturation Exposure
Output
DF : Offset Value
Ｄ
Ｆ
Amount of
Incident Light
(lx
・
s)
