Symbology reader with fixed focus spotter beam
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United States of America Patent
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-
Jan 28, 1997
Grant Date -
N/A
app pub date -
Mar 21, 1994
filing date -
Mar 21, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A symbology reader having a pair of optical sources for producing cursor beams. The cursor beams are emitted from two spaced apart locations on the reader and angled with respect to an image direction of a detector assembly within the reader. The cursor beams intersect at a desired object distance to form a composite image indicating that the reader is positioned an appropriate distance from a target object. In one embodiment, multiple composite images are formed. The composite images are spaced apart to delineate the extent of an object field of the detector assembly. In one embodiment, the optical sources are LEDs concealed beneath a mounting platform and emitting light transversely to the image direction. In this embodiment, turning mirrors redirect the light forward of the reader to form the cursor beams.
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Family
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Cited Art Landscape
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