Patent application number | Description | Published |
20120080878 | SECURITY FEATURE AND METHOD FOR PRODUCING A SECURITY FEATURE - The invention relates to a security feature for securing documents of value having a plurality of microcapsules, which respectively have a wall and in which is respectively contained a liquid medium in which are distributed several magnetic particles which are movable in the liquid medium and whose arrangement within the microcapsule is changeable by the action of a magnetic field, whereby the magnetic particles are configured to arrange themselves within the microcapsule such that they form a light-diffractive structure. | 04-05-2012 |
20130214523 | ALKALI METAL AND ALKALINE EARTH METAL NIOBATES AND TANTALATES AS SECURITY FEATURE SUBSTANCES - The invention relates to a security feature having a luminescent substance with the general formula AXO | 08-22-2013 |
20130277957 | SECURITY FEATURE - A security feature for protecting valuable documents, in particular for ensuring the authenticity of valuable documents, comprises a luminescent pigment which has a host lattice doped with a first luminophore and a second luminophore, with an excitation energy of the first luminophore being transferable to the second luminophore. However, in the case of the luminescent pigment according to the invention, the excitation energy is not transferred completely from the first luminophore to the second, but rather only partially. The incomplete transfer of the excitation energy is achieved by selecting suitable amount-of-substance fractions of the first and the second luminophores on the luminescent pigment. As a result of the incomplete transfer of the excitation energy, the luminescent light that is emitted by the luminescent pigment also has, in addition to a luminescence peak of the second luminophore, a luminescence peak of the first luminophore. | 10-24-2013 |
Patent application number | Description | Published |
20140284497 | Spectral Luminescence Standard for the Near Infrared Region - A spectral luminescence standard has bismuth in a light-transmissive inorganic matrix material and emits light in the near infrared region upon irradiation with excitation light. The bismuth acts as a luminescence emitter in the near infrared region. A method includes manufacturing such a spectral luminescence standard and a calibration medium which has the spectral luminescence standard in or on a carrier material. | 09-25-2014 |
20140306442 | Security Feature Having Several Components - The invention relates to a security feature having a luminescent component and a component camouflaging the luminescent component. The invention starts out from a security feature having a luminescent component having at least one luminophore consisting of a doped host lattice, and a component camouflaging the luminescent component, in which the camouflaging component has at least two substances, the first substance of the camouflaging component having an X-ray diffractogram which hides the X-ray diffractogram of the luminescent component, and the second substance of the camouflaging component having at least one cationic element of the luminescent component and at least one cationic element of the first substance of the camouflaging component, with the luminescent component and the first substance of the camouflaging component being formed of different cationic elements. | 10-16-2014 |
20140319818 | Security Feature having Several Components - The invention relates to a security feature having a luminescent component and a component camouflaging the luminescent component. The invention starts out from a security feature having a luminescent component having at least one luminophore consisting of at least one doped host lattice, and a component camouflaging the luminescent component, wherein the camouflaging component has chemical elements that have similar structure-chemical properties to the chemical elements of the luminescent component, wherein the chemical elements of the camouflaging component and the chemical elements of the luminescent component are formed by different chemical elements. | 10-30-2014 |
20140367958 | Security Feature having Several Components - A security feature has a luminescent component and a component camouflaging the luminescent component. A security feature has a luminescent component with at least one luminophore consisting of a doped host lattice, and a component camouflaging the luminescent component, wherein for camouflaging the luminescent component, relevant properties required for identifying the luminescent component are camouflaged by the camouflaging component by the relevant properties of the luminescent component. The relevant properties being camouflaged by the camouflaging component in at least two of the relevant properties by the camouflaging component having relevant properties that correspond to the respective relevant properties of the luminescent component, thereby impeding or preventing a recognition of the luminescent component. | 12-18-2014 |