Hand-held optical character reader with means for instantaneously reading information from a predetermined area at an optical sensing area
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United States of America Patent
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-
May 28, 1991
Grant Date -
N/A
app pub date -
Aug 31, 1988
filing date -
Aug 31, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a preferred arrangement, a lens system having circular symmetry in the hand-held reader focuses the entire width of area information onto an area photosensor array with a single flash of a ring-type xenon flash tube which surrounds the lens system and is symmetrically disposed relative to the axis of the lens system. In this way, the area information image can be disposed at any angle relative to the photosensor array, and the sensed information as stored in digital form can be rotated to a desired orientation prior to decoding.
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