User Manual - twentynine
t
ReadRow
t
ReadRow
t
FrameReadout
t
Illumination
t
Exposure
t
Line 3
Line 4
Line 5
Line 6
Line 7
Line 8
Line N-1
Line N
Line 2
Line 1
.
.
.
Readout
Exposure
Frame
Start
t
IlluminationDelay
Figure 30: Electronic Rolling Shutter Frame Readout
Beyond the illumination period
t
Illumination
, ideally no light falls onto the sensor, to fully remove the rolling
shutter effect. The timing of illumination or mechanical shutter can be calculated with the formulas below.
Delay of illumination / shutter open:
t
IlluminationDelay
=
t
ReadRow
×
(ImageHeight
−
1)
On time of illumination / shutter open:
t
Illumination
=
t
Exposure
−
(t
ReadRow
×
(ImageHeight
−
1))
41
SMARTEK Vision | User Manual - twentynine | Doc. v1.0.2