44
(2) Pulse width control exposure mode:
Mode 1
When external trigger signal is high active,
light pulse begins at the rising edge of the
trigger signal and ends at the falling edge.
At the trigger signal falling edge, the internal
VD signal is reset and the video data are
transmitted.
The flash pulse output that synchronizes to
external trigger is not used in this mode.
1 Frame = 66.7ms
15FPS
External Trigger
(High active)
A
Internal VD
minimum period = 1V
Internal Video
A
B
C
D
A
VD : 3H =
186us
DATA transfer
Exposure
Internal VD
Internal Video
DATA transfer
Internal HD
1H(cam)=
62us
3H(cam) = 186us
A
DATA transfer START:
1.75ms
External Trigger
6 to 7H(cam) = 373 to 435us
Exposure
21us
Frame reset
Trigger pulse width >
65us
4.0us
20H(cam) = 1243us
blank : 26 to 27H =
1678us