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7-3. Random Trigger Shutter
In the random trigger shutter mode, you can shoot and grab an image at an arbitrary timing by trigger
signal input from the external (It is not possible to use the Random Trigger Shutter concurrently with the
Restart Reset mode).
· External trigger signals can be input either from the camera link I/F CC1.
· If polarity is set to negative polarity, exposure starts at the falling edge of the trigger.
· The random trigger shutter of this camera can be operated in two types of mode: fixed mode and pulse
width mode. How to determine the exposure time differs depending on the mode.
Fix mode
The exposure time is determined by the setting value for the shutter speed.
exposure time
TRIG
CCD
FVAL
LVAL
DVAL
DATA OUT
· Pulse Width mode (Trigger Polution:Low Active)
The exposure time is determined by the pulse width
Set a pulse width of 1H (approximately 21.6µs) or more.
TRIG
approx. 1.0usec
CCD
FVAL
LVAL
DVAL
DATA OUT
approx.
1.0usec
approx. 92.0usec (all pixel readout)
exposure time
approx. 2.9usec
approx. 94.7usec (all pixel readout)
( 20 / 24 )
D4148005A
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