Security device for security documents such as bank notes and credit cards
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United States of America Patent
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Jan 27, 1998
Grant Date -
N/A
app pub date -
Dec 12, 1995
filing date -
May 11, 1993
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A security device includes an array of microimages which, when viewed through a corresponding array of substantially spherical microlenses, generates a magnified image. In some cases, the array of microlenses is bonded to the array of microimages.
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