MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202617073279 A) filed by De La Rue International Limited on June 12, 2026, for Security Devices And Methods Of Manufacture Thereof.
Inventors include Godfrey, John; and Locke, Rebecca.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: A security device is disclosed. The security device comprises a substrate; an array of elongate viewing elements disposed in or on the substrate; and an image layer disposed in or on the substrate and overlapping with the array of viewing elements, the image layer comprising a plurality of sets of image segments, each set of image segments in combination defining a respective image and forming an image channel; wherein each viewing element defines an optical footprint in the image layer corresponding to the lateral area of the viewing element, and wherein for each optical footprint within the image layer: the image segments are arranged as an array having a plurality of first rows each comprising image segments of a first subset of the plurality of image channels and a plurality of second rows each comprising image segments of a second subset of the image channels different from the first subset; wherein each of the first and second rows is aligned with a first direction that is substantially perpendicular to the direction of elongation of the viewing elements, and wherein within a row the respective image segments are arranged so as to cooperate with the respective viewing element such that upon tilting the device about a second direction that is parallel with the direction of elongation of the viewing element, light from different image channels within a row is selectively directed to the viewer by the viewing element in dependence on viewing angle; and further wherein the plurality of first rows and the plurality of second rows are interlaced with each other along the second direction, whereby when viewing the device, the image segments cooperate with the array of viewing elements such that when tilting the device about the second direction, the images of different image channels are selectively exhibited to the viewer in dependence on viewing angle, and for each of a plurality of different viewing angles of the device, light from an image channel of the first subset of image channels and light from an image channel of the second subset of image channels is directed to the viewer simultaneously. Methods of manufacturing such security devices are also disclosed.
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