Far Focus - Symbol DS 3478 Product Reference Manual

2-10 DS 3478 Product Reference Guide

Far Focus

Note: Typical performance at 73˚F (23˚C)
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on high quality symbols in normal room light.
5 mil
5.0
6.0
7.5 mil
2.8
10 mil PDF417
4.3
13 mil (100% UPC)
1.5
15 mil PDF417
*
*
0 5
In.
cm 12.7
0
Depth of Field
* Minimum distance determined by symbol length and scan angle.
Figure 2-7. DS 3478 Far Focus Decode Zone
12.3
20 mil
10 15 20
38.1 50.8
25.4
in. cm
W
8 20.3
i
d
t
10.2
4
h
o
0
0
f
F
4 10.2
i
e
l
d
8 20.3
20.0