Low Smear Trigger (Mode 13) - Point Grey Flea3 GigE Technical Reference

Point Grey Flea3 GigE Technical Reference
7.1.7

Low Smear Trigger (Mode 13)

Trigger Mode 13 is a reduced smear imaging mode.
This mode is available for:
FL3-GE-13S2
n
FL3-GE-28S4
n
Smear reduction works by increasing the speed of the vertical clock near the end of the integration cycle. This step is
also known as fast dump. Since the clock speed has been increased, this reduces the time each pixel data has to collect
smear while it passes through the vertical shift register.
This trigger mode behaves similarly to
dump off the CCD. The fast dump period is followed by exposure, which is controlled by the Shutter settings. The length
of the fast dump period is determined by the trigger delay.
For other methods to minimize smear, see
Revised 10/29/2013
Copyright ©2010-2013 Point Grey Research Inc.
Standard External Trigger (Mode
Smear Reduction.
Figure 7.6: Trigger Mode 13 ("Low Smear Trigger Mode")
Registers—TRIGGER_MODE: 830h
Presence [0]
ON [6]
Polarity [7]
Source [8-10]
Value [11]
Mode [12-15]
Parameter [20-31]
0), except the trigger input first activates a fast
1
1
Low/High
GPIO Pin
Low/High
Trigger_Mode_13
None
7 Image Acquisition
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