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FV-L200B1 User’s Guide Rev. 1.01
3.2 Pulse Width Trigger Mode
In this “pulse width trigger mode” with positive polarity, the camera exposure starts at the rising edge of the
trigger signal and stops at the falling edge of the trigger signal. Therefore, in the case that the exposure positive
polarity is selected, the actual exposure occurs when the trigger signal is at high state.
3.2.1 Pulse Width Trigger ModeV-Reset
Note 1: The camera does NOT switch to normal mode when the long exposure mode is selected.
This timing chart shows when the long exposure mode selected.
Note 2: The internal VD signal is reset immediately after the exposure is finished as depicted, and the video output
original is sent out according to that reset VD timing.
Note 3: The exposure time is controlled by the pulse width of the trigger signal as depicted.
Exposure
time
Max. 1H
Sweep charges
Automatically switch to the normal
mode if the pulse width of the
trigger signal is more than
500 mseconds.
*Note. 1
Camera mode
Internal VD
CCD exposure
Trigger signal
(Positive
Video out
*Note. 2
*Note. 3
FVAL
Normal mode Trigger mode Normal mode