Laser imaged identification card
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United States of America Patent
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-
Jun 6, 1995
Grant Date -
N/A
app pub date -
Dec 22, 1993
filing date -
Dec 22, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
An optical data identification card for an individual containing a photograph of the authorized user and a strip of optical contrast laser recording material with a laser-written macroscopic bi-level image of the authorized user to authenticate the photograph. The bi-level image is constructed by applying a dither matrix to a digital image file corresponding to the photograph. Each dark pixel consists of an array of high-density laser recorded spots or lines.
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Cited Art Landscape
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