摘要 |
A security element, a security device including a security element and a method of manufacturing a security device is disclosed, the element including a plurality of focusing elements and a plurality of image elements, the image elements being located in an object plane such that each image element is associated with one of the focusing elements, wherein the object plane includes at least first and second distinct subregions, and an image element within the first subregion is phase- displaced by a phase-displacement distance with respect to an image element within the second subregion, and wherein the first and second subregions produce first and second optically variable images or part-images. |