Data carrier with an optically variable element
AssigneeGiesecke & Devrient GmbH
InventorsEckhard Braun, Johann Muller, Reinhard Plaschka, Franz Daniel
Life of this patent
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Abstract
A data carrier with an optically variable structure is described having an embossed screen which is combined with a coating contrasting with the surface of the data carrier in such a way that different optically variable effects occur at different angles. Embossed screen and/or coating are executed in such a way that especially striking or additional effects occur which are suitable for determining the authenticity of the data carrier but cannot be reproduced, or reproduced true to the original, with the help of copying machines.
Claims48
A data carrier with an optically variable structure verifying the authenticity of the data carrier and having an embossed structure which is combined with a coating contrasting with the surface of the data carrier in such a way that at least partial areas of the coating are visible upon perpendicular viewing but concealed upon oblique viewing from a predetermined viewing direction so that a tilting effect occurs upon alternate perpendicular and oblique viewing, wherein the optically variable structure additionally has a first information in an area thereof where no embossed structure is present.
A data carrier with an optically variable structure verifying the authenticity of the data carrier and having a periodic embossed screen with a predetermined embossed height pattern and predetermined orientation which has zeniths in an area of the maximum embossed amplitudes and valleys in an area of minimum embossed amplitudes which are connected via flanks, wherein the embossed screen is combined with a coating contrasting with the surface of the data carrier in such a way that at least partial areas of the coating are visible upon perpendicular viewing but concealed upon oblique viewing from a predetermined viewing direction so that a tilting effect occurs upon alternate perpendicular and oblique viewing, wherein the valleys of the embossed screen are free of coating.
A data carrier with an optically variable structure verifying the authenticity of the data carrier and having a first embossed structure with a predetermined extending direction, wherein the embossed structure is combined with a coating contrasting with the surface of the data carrier in such a way that at least partial areas of the coating are visible upon perpendicular viewing but concealed upon oblique viewing from a predetermined viewing direction so that a tilting effect occurs upon alternate perpendicular and oblique viewing, wherein the optically variable structure contains visible information, wherein a second embossed structure which is phase-shifted relative to the first embossed structure or whose extending direction differs from the extending direction of the first embossed structure is present in the area of the information, and the coating and the embossed structures are additionally overlaid or underlaid with a transparent, optically variable layer.
A data carrier with an optically variable structure verifying the authenticity of the data carrier and having a first embossed structure which is combined with a first coating contrasting with the surface of the data carrier in such a way that a tilting effect occurs upon alternate perpendicular and oblique viewing, wherein the first coating has optically variable properties and wherein a first information is recognizable from at least one given oblique viewing angle.
A data carrier with an optically variable structure verifying the authenticity of the data carrier and having an embossed structure with a predetermined first embossed amplitude, wherein the embossed structure is combined with a coating contrasting with the surface of the data carrier in such a way that at least partial areas of the coating are visible upon perpendicular viewing but concealed upon oblique viewing from a predetermined viewing direction so that a tilting effect occurs upon alternate perpendicular and oblique viewing, wherein the optically variable structure has information formed by areas in the embossed structure which have a second predetermined embossed amplitude smaller than the first embossed amplitude.
A data carrier with an optically variable structure verifying the authenticity of the data carrier and having an embossed structure which is combined with a coating contrasting with the surface of the data carrier in such a way that at least partial areas of the coating are visible upon perpendicular viewing but concealed upon oblique viewing from a predetermined viewing direction so that a tilting effect occurs upon alternate perpendicular and oblique viewing, wherein the optically variable structure additionally contains information, and wherein the coating is uniformly and continuously executed all over within the contours of the information.
Dependencies are inferred from the claim text.