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US 2004/0144845 A1Published application
Optical identification and marking system
AssigneeTeb
InventorsLouis Bidault, Jacques Mugnier, Cecile Le Luyer, Nicolas Bonardi
Life of this patent
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AssigneeTeb
InventorsLouis Bidault, Jacques Mugnier, Cecile Le Luyer, Nicolas Bonardi
Estimating the term…
The system comprises a mark (2) which is placed on an object (3) or a document, or which is constituted by the entire or part of said object, in addition to a read device (5) enabling said mark to be identified. The latter is made of transparent or semi-transparent materials having a given wavelength and capable of propagating light. The mark (2) has a surface state and a microstructure enabling optical coupling with the read device (5) comprising a monochromatic/non-monochromatic light source (11), a prism (4) onto which the light (L) is directed, and a detector (18) receiving the light reflected (R), when the prism (4) is optically coupled with the mark (2), with a frustrated reflection effect. The system can be used for the recognition of objects and documents and for the authentication of objects in order to combat fraud and counterfeiting.
An optical marking and identification system, comprising a mark (2) affixed to an object or a document, or a mark formed by all or part of the object itself, and a read device (5) for recognizing said mark (2), characterized in that the mark (2) is composed of materials that are capable of propagating light, this mark being transparent or semitransparent at a given wavelength, and said mark (2) having a surface finish and a microstructure that allow optical coupling with a read device (5) that comprises at least one source (11) of monochromatic or nonmonochromatic light, a prism (4) onto which said light (L) is directed and a detector (18) that receives the reflected light (R), when the prism (4) is optically coupled with the mark (2) with a frustrated reflection effect.
Dependencies are inferred from the claim text.