C004386_03_CR2500_User_Manual - 24
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1.10 - Imager Field Selection and Resolution
The CR2500’s dual fi eld optical system may be modifi ed based on your scanning environment.
The 1.3 Million Pixel imager is divided into wide fi eld and high density decode zones. In each zone the resolution
is 1024 x 640 pixels (see Figure 1.26).
If only the high density fi eld is used (small symbols), the wide fi eld image can be ignored. If only the wide
fi eld is used (large symbols), the high density fi eld can be ignored. Further optimization may be obtained by
"windowing" the fi eld to a smaller area.
BY DEFAULT, THE CR2500 DECODES ONLY THE WIDE FIELD.
SXGA Imaging Area
Figure 1.26
Wide
High
Density
1024
640
640
1.11 - Decode Zone
Figure 1.27
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