Surys

Hologram Industries

Françoise Daniel

Hugues Souparis

Valéry Petiton

Vincent Tollet

Khalil Chikha

Saloua Kharij

Yoran Eli Pigeon

Christophe Duriez

Sophie Oostenbroek De Lange

Thibaud Trichereau

Florent Denjean

Antoine Dhome

According to a first aspect, the invention relates to an optical security component intended to be observed in reflection, with the naked eye, according to face of observation. It comprises a first layer made of dielectric material, having a first refractive index (n), at least one first diffractive structure (S, S) etched on said first layer. The first diffractive structure comprises a first pattern with at least one set of modules disposed side-by-side, in a given direction (X) of arrangement, a maximum width (l) of each module defined in the direction of arrangement (X) being less than 300 &#x3bc;m. Each module comprises a bas-relief with a first set of facets whose forms are determined to simulate an optical element visible in reflection, with at least one convex or concave region, said optical element having a profile with a continuously variable slope in a single direction (Y), said direction of variation of the slope, at right angles to the direction of arrangement (X). For two modules side-by-side, the slope along at least one line parallel to the direction (X) of arrangement is different between said two modules.

Optical security component visible in reflection, manufacture of such a component, and secure document provided with such a component

A secure product, and a production method, comprising a first reflective layer, a second layer and a third layer including readable information, the first layer being enclosed between the second and the third layers, in which the first and second layers are transparent, at least a first part of the internal surface of the second layer comprises a diffusing microstructure, and the diffusing microstructure is positioned so as to cover a predetermined part of the readable information.

Secured product with improved readability and method of producing said secured product

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Champs sur Marne, France

Françoise Daniel