ELiiXA® UC8/UC4
29
Eliixa_Color–revF 04/11
e2v semiconductors SAS 2011
Exposure Mode Timed : Free Run
This mode doesn’t require an external trigger.
In this case, the line period (Lp) can be defined in the Camera (see below) but the real line
period of the camera depends also on the exposure time (Texp) set:
- If Texp > Lp, the line period is equal to Texp
- If Lp > Texp, the line period is equal to Lp
INTEGRATION N
READOUT N-1
R EADOUT N
INTEGRATION N+1
ti
Ext Trig with integration time set in the camera
This mode requires an external trigger ( via CC1) but the exposure time is the one defined
in the Camera.
If the line period of the Trig signal provided to the camera is bigger than the exposure time set
in the camera, the “short trig pulses” will be ignored : The exposure set in the camera defines
the minimum line period possible.
INTEGRATION N
INT EG RATION N+1
READOU T N
CC1
td
th
ts
ti
Ext Trig Full Integration time available
This mode requires an external trigger (via CC1). The exposure time is the maximum
possible value between two Tri pulses.
In this mode, the exposure time set in the camera is ignored.
Avoid this mode if your trigger is not stable (variable line period) : The exposure of each line
could then be different.
If the period of the trig signal is less than the readout time, the Camera won’t send any signal.
