9
D4222901M
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5.7 Random Trigger Shutter
An image is captured at the desired timing using trigger signal input. External trigger signal from
trigger input connector and software trigger from control command via the USB 3.0 interface are
available (Edge mode / Bulk mode). Trigger polarity is selectable (High active / Low active).
Note that Random Trigger Shutter will cause a delay between trigger signal and start of exposure.
See 7. Timing Chart for detail.
- Edge mode (TriggerSequence0)
The exposure time is determined by Exposure Time setting.
Image
USB bus
Exposure
Trigger
ExposureTime
- Level mode (TriggerSequence1)
The exposure time is determined by the pulse width of the trigger signal.
USB bus
Exposure
Trigger
Pulse Width
Image
- Bulk mode (TriggerSequence6)
Camera exposes and transfers multiple frames by a single trigger.
Image
USB bus
Exposure
Trigger
ExposureTime
Image
Image
TriggerAdditionalParameter = 3
Notes on Random Trigger Shutter mode:
- In the period when FRAME_TRIGGER_WAIT signal is inactive, user must not input external trigger
signal to this camera.
- When the interval of the input trigger signal is extremely short, or when the trigger signal is noisy,
there is a possibility of causing the malfunction. In this case, please input a proper trigger signal.