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AssigneeGiesecke & Devrient GmbH
InventorsIrina Menz, Gunther Dausmann, Benedikt Ahlers, Arnim Franz-Burgholz
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The invention relates to a security system especially for security documents, wherein a security element is provided in a carrier plane, that under incident light holographically reconstructs a pattern outside the carrier plane, in which concealed information is stored and having a flat transparent verification element which on flat contact with the security element makes the information stored therein visible. The invention further relates to a security element and a verification element for use in the security system and a security document fitted with the security system. The invention additionally relates to an apparatus and a method for reading out the concealed information which is stored holographically in the pattern reconstructed on the security element under incident light.
Security system especially for a security document, with a flat security element (5, 105, 205, 305, 405, 505) in a carrier plane (9) that under incident light holographically reconstructs outside the carrier plane (9) a pattern (100, 200, 300, 400, 500) in which concealed information is stored, and with a flat, at least partly transparent verification element (3, 103, 203, 303, 403, 503), which on flat contact with the security element (5, 105, 205, 305, 405, 505) makes the information stored therein readable.
Dependencies are inferred from the claim text.