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Depth of Field for the MS700i and MS715i Scanner
Through the glass at the front of the scanner, safe, low powered laser beams
are projected in a complex pattern that resembles a spider web. Each of the
five scan fields that generate the scan pattern extends to a range of 178mm
(7.0"). The range begins from the face of the scanner window and extends
from the unit for a distance of 178mm (7.0") measured along the scanning
beam at the center of each scan segment. This 0.0mm - 178mm (0" - 7") range
is the depth of field for the MS700i and MS715i scanner (refer to Figure 10).
This area of active scanning projects out from the glass on the face of the
scanner to about 7 inches.
The scan pattern is projected at a slight angle downward from the front of the
scanner (approximately 10 degrees, overall). As the scan fields move outward,
they expand. Like an image expands from a film projector as it moves toward
the screen at a movie theater, the scan pattern projects out to a well-defined
region. Any label that is facing toward the scanner can be read at any point
within the scanning field.
Figure 10