Bar code scanner laser emission reduction
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United States of America Patent
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-
Jul 4, 1989
Grant Date -
N/A
app pub date -
Sep 30, 1986
filing date -
Sep 30, 1986
priority date (Note) -
Expired
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Abstract
An optical bar code reader using a light source which can be switched on quickly and includes provision for activating the light source and related devices only when data is actually being gathered, rather than wasting a large amount of beam on time and energy as in prior software based scanners.
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