Method for creating a fingerprint image on an optical memory card
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United States of America Patent
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Dec 28, 2004
Grant Date -
Apr 1, 2004
app pub date -
Oct 1, 2002
filing date -
Oct 1, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for imaging a fingerprint on an optical memory card having an upper transparent cover, a base and optical medium therebetween, wherein a cardholder imprints a fingerprint having a pattern of ridges and valleys on the upper cover of the card and a laser beam is scanned over the fingerprint. The laser beam is selectively transmitted by the fingerprint. The laser beam burns pits into optical medium areas corresponding to valleys of the fingerprint and is prevented from burning pits into optical medium areas corresponding to the ridges, thus producing a fingerprint image comprising light and dark areas in the optical medium corresponding to the pattern of ridges and valleys of the user's fingerprint.
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