Automatic optical projection scanner for omni-directional reading of bar code symbols within a confined scanning volume
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United States of America Patent
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Mar 1, 2005
Issued Date -
N/A
app pub date -
Dec 9, 2002
filing date -
Nov 24, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic scanner which can be used at a point-of-sale (POS) station. The scanner provides a confined scanning volume, so as to avoid unintentional scanning of nearby objects that are located outside of this confined scanning volume. This scanner can be operated in an automatic hands-on mode of operation, or also operated as a stationary laser projection scanner in an automatic hands-free mode of operation. A collimated scanning pattern is projected from the hand-supportable device about a projection axis. The collimated scanning pattern intersects the projection axis within a narrowly confined scanning volume so that bar code symbols disposed within this scanning volume can be read omnidirectionally.
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