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AssigneeOVD Kinegram AG
InventorsCorrado FRASCHINA, Sebastian MADER, Harald WALTER
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An optically variable element, in particular a security element and/or a decorative element, preferably for security documents, wherein the optically variable element has at least one pixel array having two or more pixels, wherein one or more pixels of the two or more pixels have one or more structures, and wherein one or more structures of the one or more structures project, diffract and/or scatter incident electromagnetic radiation at one or more solid angles. A security document, in particular comprising one or more optically variable elements, a method for producing an optically variable element, preferably a security element and/or a decorative element, preferably for security documents, as well as a method for producing a security document, preferably comprising one or more layers, preferably comprising one or more optically variable elements.
An optically variable element having at least one pixel array comprising two or more pixels, wherein one or more pixels of the two or more pixels of the at least one pixel array have one or more structures, and wherein one or more structures of the one or more structures project, diffract and/or scatter incident electromagnetic radiation at one or more solid angles, and wherein one or more structures of the one or more structures are formed as convexly or concavely acting microlenses and/or partial areas of microlenses.
An optically variable element having at least one pixel array comprising two or more pixels, wherein one or more pixels of the two or more pixels of the at least one pixel array have one or more structures, and wherein one or more structures of the one or more structures project, diffract and/or scatter incident electromagnetic radiation at one or more solid angles, and wherein one or more structures of the one or more structures are formed as Fresnel microlens structures.
An optically variable element having at least one pixel array comprising two or more pixels, wherein one or more pixels of the two or more pixels of the at least one pixel array have one or more structures, and wherein one or more structures of the one or more structures project, diffract and/or scatter incident electromagnetic radiation at one or more solid angles, and wherein one or more structures of the one or more structures are formed as partial areas or sections of Fresnel microlens structures, and wherein the partial areas or sections of Fresnel microlens structures have curved grating lines and/or have grating lines with varying grating periods, and wherein each pixel of the two or more pixels of the at least one pixel array comprises at least two grating periods in at least one spatial direction.
Dependencies are inferred from the claim text.