Security element for document of value

摘要

A security element is provided for a document of value. The security element includes an array of apertures through at least a portion of the document of value, the arrangement of apertures relative to one another forming an observable data item. The array of apertures includes apertures of at least two different shapes or orientations, the occurrence of the different shapes or orientations within the array representing an encoded data item. Also provided is a method of manufacturing a security element on a document of value, including: obtaining a first data item and generating an aperture array template; obtaining a second data item and encoding the second data item within the aperture array template; and perforating at least a portion of the security document according to the encoded aperture array template.

主权项

1. A security element for a document of value, the security element comprising an array of apertures through at least a portion of the document of value, the arrangement of apertures relative to one another forming an observable data item comprising at least one letter or numerical digit, wherein at least two of the apertures in the array and forming part of the at least one letter or numerical digit by virtue of their positions are of different shapes or orientations from one another, the occurrence of the different shapes or orientations within the array representing an encoded data item, wherein the encoded data item is derived from the observable data item.