Teledyne PIXIS-XF, System Manual

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74 PIXIS-XF System Manual Issue 5
Figure 6-20: Typical LightField Custom Sensor Pane
By changing the values in the Active fields, you can increase image acquisition speed by
reducing the size of the active area in the definition. The result will be faster but lower
resolution data acquisition. Operating in this mode would ordinarily require that the
chip be masked so that only the reduced active area is exposed. This will prevent
unwanted charge from spilling into the active area or being transferred to the shift
register.
By default, if there are no Pre-Dummy rows, the serial register will be cleared before
rows are shifted. If the Skip Serial Register Clean box is selected when there are no
Pre-Dummy rows, the register clean out will be skipped and the chip readout will be
faster. This feature is not available for PVCAM-supported cameras.
NOTE:
In LightField, the Clean Serial Register function only appears
in the Sensor Cleaning pane when the Inactive Area Top
Margin has been set to 0 rows. Deselect the check box to
deactivate the serial register cleaning.
6.5.2 Custom Timing
In LightField, Custom Timing is accessed via the Custom Sensor button on the Sensor
expander.
NOTE:
Custom Timing is standard with LightField for full frame
CCD cameras.
Vertical Shift Rate is the time required to shift one row into the serial register. The
smaller this value, the faster charge will be shifted up one row at a time toward the
serial register.
On the Custom Timing panel you can select from among the Vertical Shift Rate options
illustrated in
Figure 6-21 .
4
4
11
-0
112_
004
4