ORELL FÜSSLI SICHERHEITSDRUCK AG Patent applications |
Patent application number | Title | Published |
20150328916 | SECURITY DOCUMENT WITH SECURITY FEATURE - A security element for a security document comprises a first, second, third and fourth line grid which contrasts with the substrate surface, each of said grid being associated with a pattern comprising an embossed structure of the substrate. A first, second, third and fourth pattern angle differ from one another. A first security information item is coded as a first localized distribution of the first and second pattern, a second security information item is coded as a localized distribution of the third and the fourth pattern. The first and the second security information items overlap one another in the process. By disposing the first and second pattern in first grid cells and by disposing the third and fourth pattern in second grid cells and by arranging the first and second grid cells in alternating fashion, specific intensity distributions occur in different viewing directions of the security document, the intensity distributions being useful for examining the authenticity of the document. | 11-19-2015 |
20150228143 | SECURITY DOCUMENT WITH MICROPERFORATIONS - A method for verifying the authenticity of a security document by means of a camera-equipped cellphone comprises steps of acquiring a transmission mode image and a reflection mode image of the security document. Transmitted light through a plurality of perforations in a substrate of the security document is evaluated by means of the cellphone. Then, a relative positioning of the perforations with respect to a printed security features is determined, and the security document is considered “authentic”, if the determined positions and the acquired images substantially correspond to pre-stored “templates” for the security document. The perforations are structured such that they are not visible to the naked eye of a human observer which makes it harder to counterfeit the security document. | 08-13-2015 |
20150145239 | SECURITY SYSTEM WITH OPTICAL WAVEGUIDE - A security document comprises a substrate ( | 05-28-2015 |
20130207375 | SECURITY DOCUMENT WITH HOLOGRAPHIC FOIL AND PRINTED MACHINE-READABLE MARKINGS - A security document has a substrate ( | 08-15-2013 |