ALLIED Vision Technologies Guppy F-503 - Manual (Page 174)

Controlling image capture
GUPPY Technical Manual V7.1.0
174
Guppy F-503, Trigger_Mode_0, global reset release shutter
• IntEna is high, when all pixels are integrated simultaneously.
• Readout starts with end of exposure of first row.
• Readout ends with (end of exposure of last row) + (1x T
row
).
Exposure time of first row is: T
exp
Exposure time of second row is: T
exp
+ T
row
Exposure time of n-th row is: T
exp
+ (n-1) x T
row
Thus the image gets brighter with every row. To prevent this the customer
should use:
• flash (when all rows are overlapping, see drawing above)
• or a mechanical/LCD shutter
Note

For activating global reset release shutter in an advanced
register see
Table 133: Advanced register: Global reset release
shutter on page 282.
Figure 100: Trigger_Mode_0: Guppy F-503: global reset release shutter
IntEna
FVal
T
row
T
exp
Overlapping
good for
flash
T
exp