摘要:
The invention relates to a security element for protecting documents of value, which has magnetic material. Furthermore, the invention relates to a document of value, a transfer material and method for producing such security elements and documents of value as well as a method and an apparatus for checking such a security element or document of value.According to the invention the security element has at least two magnetic materials, wherein the magnetic materials have different coercive field strengths and are applied onto and/or incorporated in the security element in such a manner that their remanence is equally high.
摘要:
The invention relates to a security element for securing value documents which has magnetic material. Further, the invention relates to a value document, a transfer material and a method for checking such a security element or value document. Along the security element, for example along a longitudinal direction of the security element, there are disposed one or more, maximally five, magnetic areas and one or more, maximally five, gap areas. The extension of the magnetic areas or the gap areas along the security element is preferably chosen so great that the magnetic signals of adjacent magnetization steps that arise upon transport of the security element past the magnetic sensor interfere constructively with each other.
摘要:
The invention relates to a security element for securing documents of value. Along the security element a portion of a magnetic coding with first and second coding elements is arranged. The coding elements are arranged along a predetermined direction, wherein the first coding element continuously has along the predetermined direction a first magnetic region with a first coercive field strength and the second coding element has at least one first gap region and one second magnetic region with a second coercive field strength. At least one of the first magnetic regions is directly adjacent to at least one of the second magnetic regions. The sum of the lengths of the directly adjacent first and second magnetic regions amounts to a maximum of 8 mm.
摘要:
The invention relates to a security element for securing documents of value. Along the security element a portion of a magnetic coding with first and second coding elements is arranged. The coding elements are arranged along a predetermined direction, wherein the first coding element continuously has along the predetermined direction a first magnetic region with a first coercive field strength and the second coding element has at least one first gap region and one second magnetic region with a second coercive field strength. At least one of the first magnetic regions is directly adjacent to at least one of the second magnetic regions. The sum of the lengths of the directly adjacent first and second magnetic regions amounts to a maximum of 8 mm.
摘要:
A method and apparatus for recognizing foreign material (2), in particular adhesive objects, glue or joints, on or in bank notes (1), including detecting the thermal radiation (5) emanating from at least a partial area of the bank note (1): and recognizing foreign material (2) located on the bank note (1) on the basis of the detected thermal radiation (5). The invention is especially suitable for recognizing adhesive objects, in particular adhesive tape and joints, on bank notes since areas of a bank note with adhesive tape or joints differ very distinctly in their thermal properties from other areas of the bank note without adhesive tape.
摘要:
The invention relates to a security element for protecting documents of value, which has magnetic material. A portion of a magnetic coding is arranged on the security element, which coding consists of several magnetic areas and several gap areas. The portion of the magnetic coding is arranged in a predetermined direction along the security element, for example perpendicularly to a transport direction of the security element or document of value through a magnet sensor. Concerning the length of the magnetic areas and of the gap areas of the magnetic coding, certain length conditions are predetermined, which are chosen in dependence on the magnet sensor employed.
摘要:
Scanning apparatuses for scanning bar codes applied to documents have a reflector arrangement having either a variable reflection element or a light guide system. The reflection element or light guide system serves to deflect the beam path of the electromagnetic radiation emitted by a radiation source or an illumination device in the document plane along a line substantially perpendicular to the feed direction of the document, or to capture it, and to relay it to a detector.
摘要:
Forged bank notes are no longer reliably distinguishable from bank note originals (BN) on the basis of their luminescent fibers. According to the invention, the excitation of the fibers to luminescence is effected by means of excitation radiation (S) from the restricted wavelength range from 600 to 640 nm or from 520 to 550 nm, since the forgeries do not luminescence in this range but the originals luminescence red. Detection is therefore effected in the wavelength range from 640 to 700 nm.
摘要:
The invention relates to a security element for protecting documents of value, which has magnetic material. A portion of a magnetic coding is arranged on the security element, which coding consists of several magnetic areas and several gap areas. The portion of the magnetic coding is arranged in a predetermined direction along the security element, for example perpendicularly to a transport direction of the security element or document of value through a magnet sensor. Concerning the length of the magnetic areas and of the gap areas of the magnetic coding, certain length conditions are predetermined, which are chosen in dependence on the magnet sensor employed.
摘要:
A method of checking value documents having a security element with a plurality of magnetic areas, including a high-coercivity magnetic area, a low-coercivity magnetic area and a combined magnetic area, which contains both the high-coercivity and the low-coercivity magnetic material. When all magnetic areas have been magnetized in a first direction, second magnetization is performed, which involves only the low-coercivity magnetic material being remagnetized parallel to the first magnetization in the opposite direction, but the high-coercivity magnetic material remaining oriented in the first direction of magnetization. Next, first magnetic signals from the security element are detected using a first magnetic detector, and second magnetic signals are detected using a second magnetic detector. The magnetic signals are used to identify each magnetic area of the security element as a high-coercivity, a low-coercivity or a combined magnetic area.