CAMERA LINK FC300ACL Instruction Manual page 25

● ● ● ● Camera Operation Mode Camera Operation Mode / Asynchronous Shutter・ ・ ・ ・ Preset Shutter・ ・ ・ ・ V reset ON
Camera Operation Mode Camera Operation Mode
In this mode, the exposure is conducted synchronizing with the trigger pulse. The camera exposure starts at the rising edge of the
trigger signal and the exposure time will be the preset value of the electronic shutter..
If the next pulse is receipt during the video out period, the image signal is swept out in midstream and can't normally get image
signal,
Camera op eration
Continuou s shutt er
mode
Trigg er sign al
(Positive)
Int ernal VD
CCD exposure
Vid eo out
* The camera does not switch to continuous shutter mode when the low speed shutter is selected.
* It is V reset at the next internal VD timing immediately after the exposure is finished.
* The exposure time is the preset value of the electronic shutter.
* When switched to asynchronous shutter mode from continuous shutter mode, the waiting period of at least 1VD is required if the
shutter speed is less than 1 VD.
● ● ● ● H Reset Mode H Reset Mode H Reset Mode H Reset Mode
Trigg er pulse
(High-tru e logi c)
Intern al HD
SUB pulse
CCD exposure
Vid eo out
Asynchronous shutt er
Next VD
Exposure time
Sweep charg e
N ormal SUB pulse timing
By selecting this "H Reset Mode", the camera automatically holds the
actual activation of trigger until the next horizontal blanking period. Then
the SUB pulse is activated during the horizontal blanking period and the
noise in image can be avoided.
Automati cally sw itch to the continuous
shuut er mod e if the pulse width of the
500ms
trigger sign al is more than 500msec..
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Continuous shutter