Printed matter – Having revealable concealed information – fraud preventer or... – Utilizing superposed layers
Patent
1984-08-01
1986-12-16
Bell, Paul A.
Printed matter
Having revealable concealed information, fraud preventer or...
Utilizing superposed layers
283 70, 283 72, 283 75, B42D 1500
Patent
active
046292152
ABSTRACT:
The disclosure concerns an identification card containing information such as name, account number, photo of the card owner, etc. The card is protected by a superjacent printed security pattern, such as a guilloche, or other pattern which is difficult to imitate, or a homogeneous printed surface. The information is inscribed into the identification card material through the printed security pattern by a laser beam recorder. The energy of the laser and the colors of the printed security pattern are coordinated with each other in such a way that the laser light is not absorbed by the printed security pattern and the latter is not destroyed by the laser light.
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Holbein Hans J.
Maurer Thomas
Bell Paul A.
GAO Gesellschaft fuer Automation und Organisation mbH
Heyrana Sr. Paul M.
Koch Robert J.
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