JAI SP-12401C-USB, User Manual

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SP-12401M-USB/SP-12401C-USB
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Actual Exposure Times
The shortest exposure times that can be configured are as follows.
・ The actual exposure time will consist of the image sensor’s offset duration (14.26 μs) added
to the setting configured on the camera.
・ When [ExposureMode] is set to [Timed] and the exposure time is set to 1 μs, the actual
exposure time will be as follows.
1 μs + 14.26 μs (offset duration of image sensor) = 15.26 μs
・ When [ExposureMode] is set to [TriggerWidth], the exposure is slightly longer than the width
of the trigger signal. To achieve an exposure time of 15.26 µs and the exposure time offset
is 14.26 µs, use 15.26 µs - 14.26 µs = 1 µs as the high or low time for the trigger signal.
Trigger Control
The camera allows the following controls to be performed via external trigger signals.
•
The settings for exposure control and triggers are related to each other. Be sure to
configure the settings described in “ExposureMode” .
(1) You can delay when exposure actually starts after a trigger is received by a specific
amount of time by configuring [TriggerDelay].
ExposureMode Shortest exposure time
Timed 15.26us (8bit)
TriggerWidth 15.26us (8bit)
TriggerSelector Description
FrameStart Start exposure in response to the external trigger signal input. Select
this to perform exposure control using external triggers.
AcquisitionStart Start image acquisition in response to the external trigger signal input.
AcquisitionEnd Stop image acquisition in response to the external trigger signal input.
AcquisitionTransferStart Output acquired images at a specified timing in response to an
external trigger signal input.
* There is a limit to the number of image frames that can be stored
internally. The limits for each image format are as follows. Acquired
images must be output to avoid exceeding these limits.
8 bit: Up to 8 frames (BGR8: 4 frames)
10 bit: Up to 8 frames (BGR10p: 4 frames)
12 bit: Up to 8 frames