An identification patch having a pattern of plasmonic resonance elements may be used to ensure that an article is counterfeit-proof. The identification patch is formed by laser-induced superplasticity to create a distinctive pattern of resonance elements that each contain a plurality of nanostructures. When the identification patch is irradiated, the pattern of resonance elements produces a unique spectral response that is associated only with the counterfeit-proof article. The counterfeit-proof article may be a metal component or an integrated circuit. The resonant absorption of the plasmonic resonance elements may be measured to verify the authenticity of the article before use of the article.

The disclose provides an optical anti-counterfeiting element and a manufacturing method of the optical anti-counterfeiting element, the optical anti-counterfeiting element includes: a substrate, the substrate has a first surface and a second surface which are opposite to each other; and an interference color layer located on the first surface of the substrate, the interference color layer is located in a non-hollow area of the optical anti-counterfeiting element and is not located in a hollow area, the interference color layer is a Fabry-Perot filter structure, an absorbing layer of the Fabry-Perot filter structure is in contact with the substrate, and a material of the absorbing layer is an alloy.

The disclose provides an optical anti-counterfeiting element and a manufacturing method of the optical anti-counterfeiting element, the optical anti-counterfeiting element includes: a substrate, the substrate has a first surface and a second surface which are opposite to each other; and an interference color layer located on the first surface of the substrate, the interference color layer is located in a non-hollow area of the optical anti-counterfeiting element and is not located in a hollow area, the interference color layer is a Fabry-Perot filter structure, an absorbing layer of the Fabry-Perot filter structure is in contact with the substrate, and a material of the absorbing layer is an alloy.

This invention aims to provide a novel laminate in which a first layer is formed with high positional accuracy, and to provide a manufacturing method thereof. In the laminate of this invention, a relief structure forming layer includes a first region having an indented structure extending in a first direction or a direction tilted by an angle within 10 degrees to the left or right from the first direction in a plan view, and a second region including an indented structure extending in a second direction orthogonal to the first direction or a direction tilted by an angle within 65 degrees to the left or right from the second direction in a plan view. The first layer contains a first material which is different from a material of the relief structure forming layer, and has a surface shape corresponding to that of the relief structure forming layer.

This invention aims to provide a novel laminate in which a first layer is formed with high positional accuracy, and to provide a manufacturing method thereof. In the laminate of this invention, a relief structure forming layer includes a first region having an indented structure extending in a first direction or a direction tilted by an angle within 10 degrees to the left or right from the first direction in a plan view, and a second region including an indented structure extending in a second direction orthogonal to the first direction or a direction tilted by an angle within 65 degrees to the left or right from the second direction in a plan view. The first layer contains a first material which is different from a material of the relief structure forming layer, and has a surface shape corresponding to that of the relief structure forming layer.

A micro-optic security device with zonal color transitions includes a planar array of focusing elements, an image icon layer including a plurality of retaining structures, the plurality of retaining structures defining isolated volumes at a first depth within the image icon layer, a first zone of image icons, the first zone of image icons having a first predefined subset of the plurality of retaining structures, wherein the isolated volumes of retaining structures of the first predefined subset of the plurality of retaining structures contain cured pigmented material of a first color, and a second zone of image icons, the second zone of image icons including a second predefined subset of the plurality of retaining structures, wherein the isolated volumes of retaining structures of the second predefined subset of the plurality of retaining structures contain cured pigmented material of a second color, wherein the second color contrasts with the first color.

An optically variable security element has a multicolored, reflective areal region including a first relief structure disposed at a higher level than a second relief structure. The first relief structure has a first ink coating and the second relief structure has a second, different ink coating. The two relief structures overlap in an overlap region. The first ink coating of the first relief structure is disposed at a higher level in the overlap region and has at least one recess the dimension of which is more than 140 μm. The first ink coating comprises an edge region adjoining the recess, and as a bicolor register feature the first relief structure lets the edge region of the first ink coating appear with a first color impression and the second relief structure through the recess lets the second ink coating appear with a second, different color impression in mutual register.

The present invention provides an anti-counterfeit marking technique for verifying authenticity of objects using x-rays fluorescence (XRF) analysis.

The present invention provides an anti-counterfeit marking technique for verifying authenticity of objects using x-rays fluorescence (XRF) analysis.

A method for manufacturing an optically variable security element, so that for a viewer of the security element, a first color impression is created through the combination of at least the color effects of a first embossing lacquer layer and the coating, and a second, different color impression is created through the combination of the color effects of at least the first embossing lacquer layer, a second embossing lacquer layer and a coating.