Intellectual Property India Publishes Patent Application for Security Devices And Methods Of Manufacture Thereof

MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202617071467 A) filed by De La Rue International Limited on June 09, 2026, for Security Devices And Methods Of Manufacture Thereof.

Inventor includes 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 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 first image channel and a second image channel, the first image channel formed of a set of first image channel positions each associated with a corresponding viewing element and the second image channel formed of a set of second image channel positions each associated with a corresponding viewing element, wherein the set of first image channel positions and the set of second image channel positions are interlaced with each other, whereby at a first range of viewing angles, light from the first image channel is directed to the viewer, and at a second range of viewing angles, light from the second image channel is directed to the viewer; wherein at least the first image channel is occupied by a corresponding set of first image elements formed of image layer material that together defines a first image; wherein the image layer comprises at least one region that is fully contained within the lateral area of the first image and overlaps with a plurality of the viewing elements, said at least one region having a first image tone ratio that is the number of first image channel positions occupied by first image elements to the number of first image channel positions within the region; and wherein: (i) the image layer comprises first and second regions having different first image tone ratios; and/or (ii) the second image channel is occupied by a corresponding set of second image elements formed of image layer material that together defines a second image, and within said at least one region of the image layer, the first image tone ratio is different from a second image tone ratio that is the number of second image channel positions occupied by second image elements to the number of second image channel positions within the region. Corresponding methods of manufacturing such devices are also disclosed.

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