EP2559010A1 - Capteur pour vérification de documents de valeur - Google Patents

Capteur pour vérification de documents de valeur

Info

Publication number
EP2559010A1
EP2559010A1 EP11715177A EP11715177A EP2559010A1 EP 2559010 A1 EP2559010 A1 EP 2559010A1 EP 11715177 A EP11715177 A EP 11715177A EP 11715177 A EP11715177 A EP 11715177A EP 2559010 A1 EP2559010 A1 EP 2559010A1
Authority
EP
European Patent Office
Prior art keywords
sensor
value document
luminescence
detection area
detectors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11715177A
Other languages
German (de)
English (en)
Other versions
EP2559010B1 (fr
Inventor
Wolfgang Deckenbach
Martin Clara
Wolfgang Rauscher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient Currency Technology GmbH
Original Assignee
Giesecke and Devrient GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP2559010A1 publication Critical patent/EP2559010A1/fr
Application granted granted Critical
Publication of EP2559010B1 publication Critical patent/EP2559010B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G07D7/121—Apparatus characterised by sensor details
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G07D7/1205—Testing spectral properties

Definitions

  • the invention relates to a sensor and a method for checking documents of value as well as a device having the sensor.
  • sensors are usually used with which the type of value documents is determined and / or with which the value documents are checked for authenticity and / or their condition.
  • sensors are e.g. used for checking banknotes, checks, ID cards, credit cards, check cards, tickets, vouchers and the like.
  • the value documents are checked in a value document processing device in which, depending on the value-document properties to be checked, one or more different sensors are included. For checking the value documents, these are usually moved relative to the sensors, wherein either the value document is transported past the sensor or vice versa.
  • a value document to be tested may comprise one or more luminescent substances, of which, for example, the decay time and / or spectral properties of the luminescence are checked.
  • the luminescent substances of the value document can be present on the value document in regions or over the entire surface.
  • To check the decay time of the luminescence it is known to illuminate value documents with light pulses and, in the dark phase between the light pulses, to detect the luminescence intensity of the value document at different times after the end of the illumination pulse.
  • a disadvantage is that due to the pulsed illumination and due to the relative movement between sensor and document of value, a discontinuous examination of the value document is performed.
  • An object of the present invention is to provide a sensor for checking documents of value, with which the decay time of a luminescence of the value document can be checked even at low movement speeds in a large range of decay times.
  • the sensor according to the invention is designed to test a value document present in a measuring plane of the sensor.
  • the value document and the sensor are moved relative to one another in such a way that the value document moves along a direction of movement relative to the sensor.
  • the value document is usually transported along or along the movement direction along the stationary sensor.
  • the sensor can also be transported relative to the static document of value, or both can be transported be transported.
  • the sensor is set up to check the decay time of a luminescence of the value document. The decay time is checked based on luminescence signals from detectors of the sensor.
  • the sensor can only be used for checking documents of value transported past the sensor individually, but also for checking a sheet having a plurality of value documents or a continuous material web which has a multiplicity of value documents along the direction of movement.
  • the sensor is also suitable for testing a material web from documents of value that have not yet been completed in order to check the value documents already during their production.
  • the sensor has a lighting device that is used to illuminate a portion of the measuring plane of the sensor to illuminate the document of value when it moves relative to the sensor, in this section of the measuring plane with excitation light.
  • the sensor has a plurality of detectors for detecting luminescent light which emits the value document illuminated with the excitation light when it moves relative to the sensor in different detection areas of the measurement plane.
  • the detection areas of the detectors of the sensor are offset from one another along the direction of movement of the value document.
  • the illuminated portion and the detection areas of the detectors are each stationary in the measurement plane of the sensor.
  • the excitation light of the illumination device is designed to excite a luminescence of the value document to be tested in such a way that the value document emits luminance light that can be detected by the detectors.
  • a first one of the detectors of the sensor is set up to generate a first luminescence signal of a first detection region which overlaps the illuminated section in the measurement plane.
  • the first luminescence signal corresponds to the luminescent light detected in the first detection area.
  • a second of the detectors of the sensor is set up to generate a second luminescence signal of a preceding detection area, which, viewed along the direction of movement of the value document, is arranged in front of the first detection area in the measurement plane.
  • the second luminescence signal corresponds to the luminescence light detected in the preceding detection region.
  • the illuminated portion preferably has a length that is greater than or equal to the length of the first detection area.
  • the sensor preferably also has a third detector, which is set up to generate a third luminescence signal of a subsequent detection area.
  • the subsequent detection area viewed along the direction of movement, is arranged after the first detection area in the measurement plane.
  • the third luminescence signal corresponds to the luminescence light detected in the subsequent detection region.
  • the third detector allows the sensor to more accurately determine long decay times.
  • the sensor can also be realized without the third detector.
  • the following detection area viewed along the direction of movement, is disposed after the first detection area such that it does not overlap with the illuminated section of the measurement plane.
  • the illuminated section of the measurement plane is continuously illuminated and the luminescent light of the value document is continuously detected by the detectors, simultaneously with the illumination.
  • the value document can be checked without interruptions, in contrast to a test with pulsed illumination and time-delayed detection.
  • a spectral Filter arranged, which blocks the excitation light of the illumination device, so that scattered at the value document excitation light is not detected.
  • the sensor may also include one or more further detectors, each of which is arranged to generate a further luminescence signal of a further detection area.
  • the further detection area (s) viewed along the direction of movement of the value document, are arranged after the preceding detection area and before the first detection area in the measurement plane.
  • the luminescence signals of the other detectors can also be used to check the decay time.
  • the ratio of the luminescence signal of one of the further detectors to the first luminescence signal can be formed. It is advantageous to also use the luminescence signal of one of these further detectors to check the decay time, since this makes a more accurate check or determination of the decay time possible.
  • the first, the second and optionally the further detectors and optionally the third detector can be formed, for example, by a one- or two-dimensional photodetector array.
  • the sensor is configured such that under certain conditions the second luminescence signal and the luminescence signal of at least one of the other detectors of the sensor are used to check the luminescence decay time of the value document.
  • This other detector whose luminescence signal is used together with the second luminescence signal, is, for example, the first detector or one of the above-mentioned further detectors of the sensor.
  • the conditions when the second luminescence signal and the luminescence signal of the other detector are used to check the decay time can be fixed. However, the sensor can also be set up so that these conditions can be set after the sensor has been put into operation.
  • the conditions for using the second luminescence signal and the luminescence signal of the other detector to check the decay time may include measurement conditions for examining the value document and / or properties of the value document itself to be checked, eg the type of value document.
  • the second luminescence signal and at least the luminescence signal of one of the other detectors of the decay time sensor may be used, in particular the second and the first Luminescence signal or the second and the luminescence signal of at least one of the other detectors.
  • the selection of those luminescence signals, on the basis of which the decay time is checked, can take place virtually on-line, for example on the basis of information that is only determined during an examination of the value document.
  • the sensor is preferably configured to check the decay time of the luminescence of the value document based on the first and the second luminescence signal.
  • the sensor may be configured to selectively check the decay time based on the first and second luminescence signals or based on the first and third luminescence signals. The selection of the first and second or of the first and third luminescence signal can be made as a function of the measurement conditions and / or depending on the properties of the value document to be tested.
  • the sensor may also be configured to adjust the luminescence decay time of the value document, optionally based on the first and second luminescence signals, or based on the luminescence signal check first and third luminescence signal or based on the first and the second and the third luminescence signal.
  • the sensor may be provided with information about the speed of movement of the value document relative to the sensor.
  • the speed of movement of the value document may be set in the sensor.
  • the information about the speed of movement used in the examination of the value document can also be supplied externally to the sensor, e.g. through the device in which the sensor is installed. This can be done before checking the value document.
  • the sensor may also receive, quasi online, the actual rate of movement or a rate of movement of the value document to be tested, e.g. from the device which also controls the movement of the value document.
  • the speed of movement of the value document can be determined from the movement of the value documents by means of one or more light barriers.
  • the light barriers can be arranged in the device along the transport path of the document of value before and / or after the sensor.
  • the movement speed can be determined from the time interval of the signals of two light barriers, which are arranged at a certain distance along the transport path, e.g. based on the time interval of the value document edges or another structure of the signals.
  • the speed of movement may also be mechanical, e.g. are determined by means of a wheel moving through the transport system, through the document of value, through the sheet or through the material web.
  • the sensor according to the invention can also be designed to determine the speed of movement of the documents of value.
  • one or more light barriers in the sensor be integrated.
  • the sensor has a light barrier along the transport path in front of the detection areas of the detectors whose luminescence signals the sensor uses to check the decay time, and a light barrier after them.
  • the speed of movement can then be determined from the time interval between the value document edges or another structure of the light barrier signals with a known light barrier distance.
  • the movement speed can also be determined from the signal of a single light barrier of the sensor.
  • the speed of movement of the value document can also be determined from the luminescence signals which the sensor detects.
  • the speed of movement may be determined by comparing the luminescence signals detected by at least two of the detectors as a function of time, e.g. by comparing the luminescence signals of the first and second detectors. The comparison provides the time interval of the luminescence signals with which the luminescence signals, due to the local offset of the detectors along the direction of movement, are detected. In this case, e.g. the time interval of certain structures of the luminescence signal are used or the rise or fall of the detected luminescence signals at the front or back edge of the value document. From the determined time interval and the known spatial offset of the detectors along the transport direction, the speed of movement of the respective
  • Value document are determined. Given a known length of the value document or known length of a structure of the value document, the movement speed can also be determined from the luminescence signal of a single one of the detectors of the sensor.
  • the sensor is arranged such that the selection of the luminescence signals which are used to check the luminescence decay time is made as a function of the speed of movement with which the value document and the sensor are moved relative to each other during the examination of the value document. For example, the sensor is set up to check the decay time of the luminescence based on the first and the second luminescence signal below a first speed threshold of the movement speed.
  • the decay time of the luminescence can be checked based on the first and the third luminescence signal, wherein the second speed threshold is greater than or equal to the first speed threshold.
  • the decay time of the luminescence can be checked based on the first, the second and the third luminescence signal.
  • the sensor forms, for example, the ratio of the second and the first luminescence signal and / or the ratio of the third and the first luminescence signal. For example, the respective ratio can be compared to one or more thresholds to check whether the cooldown is below or above a certain time or within a certain time window.
  • the first detector has a spectral sensitivity which differs from the spectral sensitivity of the second detector and from the spectral sensitivity of the third detector.
  • the spectral sensitivity of the first detector differs from that of the second and third detector such that an additional emission light of a value document to be tested, which in another Spectral range is as the luminescence, whose decay time is checked by the sensor, either by the first detector or in each case by both the second and by the third detector is detectable.
  • the additional emission light can be in a longer-wavelength or in a shorter-wave spectral range than the luminescence light whose decay time is checked.
  • the additional emission light can only be detected with the first detector, and the additional emission light can not be detected by the second and third detectors.
  • the additional emission light can only be detected with the second and third detectors, and the additional emission light can not be detected by the first detector.
  • various detectors can be used, but it is also possible to use a spectral filter for the first detector other than for the second and third detectors.
  • the additional emission light may likewise be a luminescence of the value document.
  • the additional emission light for the inspection of which the sensor is set up can be emission light emitted by the same value document whose luminescence light checks the decay time.
  • the additional emission light of a value document area is checked, which lies outside the value document area in which the value document transmits the abovementioned luminescence.
  • the two value document areas of the value document can be separate document areas or partially overlap.
  • the decay time of the luminescence is checked in the latter case but preferably outside of the overlap region.
  • the additional emission light can also be the emission light of other value documents which differ from those of value. documents whose luminescent light checks the cooldown.
  • the preceding detection area preferably overlaps with the illuminated section in such a way that, during the test of the
  • the preceding detection area is illuminated with excitation light, said sub-area, viewed along the direction of movement, at the end of the preceding detection area is arranged.
  • the illuminated partial area of the preceding detection area extends, viewed along the direction of movement, from the center of the preceding detection area or from a location to the center of the preceding detection area until the end of the preceding detection area.
  • the illuminated partial area of the preceding detection area comprises, in terms of area, between 20% and 50% of the preceding detection area.
  • the first detection region in the measurement plane overlaps with the illuminated section in such a way that, when checking the value document, only a partial region of the first detection region is illuminated with excitation light, which is arranged along the movement direction, at the beginning of the first detection region.
  • excitation light which is arranged along the movement direction, at the beginning of the first detection region.
  • the center of the illuminated portion viewed along the direction of movement, is positioned in front of the first detection area.
  • the illuminated partial region of the first detection region extends from the beginning of the first detection region, preferably to the middle of the first detection region. Along the movement From the middle of the first detection area to the end of the first detection area in the measurement plane, there is no overlap with the illumination area.
  • the first detection area in the measurement plane has the greatest overlap with the illuminated section in this exemplary embodiment.
  • the illuminated partial area of the first detection area preferably comprises at least 30% of the area of the first detection area.
  • the first detection area overlaps with the illuminated section in such a way that, when checking the value document, essentially half of the first detection area is illuminated with excitation light.
  • the invention also relates to a device which is set up to use the sensor according to the invention for checking value documents.
  • the device can be a checking device for value documents, which checks the value documents for their authenticity, a deposit device or a processing machine for value documents, which can examine the value documents and, if necessary, sort them.
  • the invention relates to a method for checking a value document, comprising the following steps:
  • the value document and a sensor, which is set up for checking the value document, are moved relative to each other for checking the value document, wherein the value document moves along a direction of movement relative to the document of value Sensor and moved relative to the illuminated section.
  • a lighting device illuminates a section of a measuring plane of the sensor so that the document of value is illuminated with excitation light in the illuminated section when moved relative to the sensor and relative to the illuminated section.
  • the sensor has a plurality of detectors which detect luminescent light, which illuminates the value document illuminated with the excitation light different detection areas of the measurement level.
  • the decay time of a luminescence of the value document is checked on the basis of the luminescence signals of the detectors.
  • the detection areas of the detectors are offset from one another along the direction of movement of the value document.
  • a first one of the detectors generates a first luminescence signal of a first detection region overlapping the illuminated portion in the measurement plane, and a second one of the detectors generating a second luminescence signal of a preceding detection region which, viewed in the direction of movement, precedes the first detection region arranged in the exhibition level.
  • a third of the detectors can generate a third luminescence signal of a subsequent detection area, which, viewed along the direction of movement, is arranged after the first detection area in the measurement plane.
  • corresponding method steps can be carried out in the method according to the invention.
  • the relative movement between the sensor and the value document to be tested can be performed by the above-mentioned device.
  • the remaining process steps can be carried out by the sensor described above.
  • the illumination device can be a constituent part of the sensor.
  • the cooldown can be checked by the sensor itself. Alternatively, the cooldown check can also be performed outside the sensor. The invention will be explained by way of example with reference to the following figures.
  • FIGS. 1a-c show a schematic structure of the sensor with the illumination beam path and the illuminated section B (FIGS. 1a, 1c) and with the detection beam paths and the detection regions D1, D2, D3 (FIGS. 1b, 1c),
  • FIG. 3a-d the course of the luminescence intensity as a function of the location x along the direction of movement of the value document, for two different speeds of movement and two different cooldowns,
  • FIG. 4a-c luminescence signals Sl, S2 and S3 of the detectors Dl, D2 and
  • FIG. 5a the second and first luminescence signal S2 / S1 as a function of the decay time
  • FIGS. 1 a-c Schematically, the structure of a sensor 100 for checking value documents is shown in FIGS. 1 a-c (xz plane).
  • a value document W is moved along a direction of movement T relative to the sensor 100 and thereby passes through a measurement plane E of the sensor 100.
  • the value document level lies approximately in the measurement plane E of the sensor 100.
  • the value document is checked by an illuminated section B of the measurement plane E moves, in the excitation light of a lighting device 8 of Sensor 100 hits the measuring level, cf. Figure la.
  • the beam path of the excitation light leads from the illumination device 8 via a lens 9 to a beam splitter 6 which deflects a portion of the excitation light and from which the excitation light is directed onto the measurement plane E via a further lens 7.
  • the excitation light of the illumination device 8 leads to an optical excitation of the luminescence of the value document W and can be, for example, in the ultraviolet, in the visible or in the infrared spectral range.
  • a lighting device for example, a lamp, one or more light-emitting diodes or one or more lasers can be used.
  • the sensor also includes a plurality of detectors 1, 2, 3, which may be applied to a common carrier 4, for example.
  • a common carrier 4 for example.
  • individual photodiodes or individual phototransistors can be used as detectors, but it is also possible to use a photodetector row or a two-dimensional photodetector array whose individual elements form the detectors.
  • Each of the detectors is designed for the detection of luminescent light of the value document, which may be in the ultraviolet, in the visible or in the infrared spectral range.
  • the detectors can be provided with a spectral filter (not shown) which suppresses the spectral range of the illumination light and / or only transmits the luminescence light to be detected.
  • the detectors detect the luminescence light emanating from the respective detection area of the respective detector located in the measurement plane E.
  • the first detector 1 detects the luminescence light emanating from a first detection area D1
  • the second detector 2 detects the luminescence light emanating from a preceding detection area D2 located along the movement direction T of the value document before the first detection area D1
  • the third one Detector 3 emanating from a subsequent detection area D3 Lumineszenszlicht, along the direction of movement T of the value document W, after the first detection area Dl is arranged, cf.
  • Figure lb The luminescent light of the respective detection area D1-D3 is collected by the lens 7, passes through the beam splitter 6, and is focused by the lens 5 onto the respective detector 1-3.
  • the value-document area emits luminescent light which is currently in the illuminated section B, but also a value-document area which adjoins it along the direction of movement T.
  • the first detection area Dl and the preceding detection area D2 are positioned so as to partly overlap with the illuminated portion B.
  • the subsequent detection area D3 lies in this example outside of the illuminated section B, cf. Figure lc.
  • the luminescent light of the value document W is continuously detected by the detectors 1, 2, 3, e.g. across the entire value document W as it moves relative to the sensor 100.
  • FIG. 2 a shows a plan view of the measuring plane E of the sensor 100 (xy plane), from which the relative arrangement of the illuminated section B and the detection regions D 1, D 2, D 3 can be seen.
  • the shape of the illuminated portion B and the detection areas Dl, D2, D3 may be arbitrary, respectively. In this example, the shape of the illuminated portion B is rectangular and that of the detection areas Dl, D2, D3 is circular.
  • the illuminated section B overlaps with the first detection area D1 in a lit partial area D10 of the first detection area D1 and with the preceding detection area D2 in an illuminated partial area D20 of the preceding detection area D2.
  • the value document W moves through the section of the measuring plane E shown in FIG. 2a along the direction of movement T (x-direction).
  • the detectors 1, 2, 3 continuously detect the luminescence intensity emitted by the value document W, while the value document W moves along the direction of movement T through the measurement plane E of the sensor 100.
  • this continuously detected luminescence intensity L is plotted as a function of the location coordinate x parallel to the direction of movement T of the value document W.
  • the luminescence intensities are normalized to the respective intensity maximum.
  • the luminescence intensity detected by the detectors 1, 2, 3 and applied in FIGS. 3a-d will remain the same, as long as a homogeneously luminescent value-document area is moved through the detection areas D1, D2, D3.
  • FIGS. 3a-d show the detection areas D1-D3 and the illuminated section B at the top, respectively, at the corresponding x positions.
  • FIGS. 3 a and 3 c show the luminescence intensity in the case of a low speed of movement v g of the value document W
  • FIGS. 3 b and 3 d show the case of a high speed of movement h.
  • the luminescence intensity L of a "slow” luminescent substance whose luminescence intensity has a long decay time ⁇ is shown
  • FIGS. 3b and 3c the luminescence intensity L of a "fast” luminescent substance whose luminescence intensity has a short decay time Tk.
  • the highest luminescence intensity is detected in the first detection area D1. Whether and how much luminescence intensity is detectable in the preceding and in the subsequent detection range D2 and D3 depends on the decay time of the luminescence and the speed of movement of the value document W.
  • the figures 4a-c is the luminescence signal Sl of the first detector 1, the luminescence signal S2 of the second detector 2 and the luminescence signal S3 of the third detector 3, respectively in dependence of the decay time ⁇ of the Luminescence, for two different speeds of movement v g and shown Vk.
  • a "slow" luminescence with decay time ⁇ ⁇ and a low movement speed v g case of FIG.
  • the first detector 1 (first detection area D 1) and the third detector 3 (subsequent detection area D 3) detect a significant luminescence signal S 1 and S 3, respectively 4a and 4b, on the other hand, the luminescence signal S2 of the second detector 2 (previous detection area D2) is very small, see Fig. 4c, to check the decay time of the luminescence in this case, the luminescence signals Sl and S3 of the first and third detector 1, 3.
  • the ratio S3 / S1 can be formed, on the basis of which the decay time of the luminescence can be checked and unambiguously determined if necessary, compare FIG.
  • the first detector 1 detects (First detection area Dl) and the third detector 3 (subsequent detection area D3) a significant luminescence signal Sl or S3, see. FIGS. 4a and 4b.
  • the luminescence signal S2 of the second detector 2 is very small, cf. Figure 4c.
  • the luminescence signals S1 and S3 of the first and third detectors 1, 3 are also used in this case.
  • the ratio S3 / S1 can be formed, on the basis of which the decay time of the luminescence can be checked and unambiguously determined if necessary, cf. FIG. 5a.
  • the first detector 1 first detection area Dl
  • a substantial luminescence signal Sl see FIG. 4a.
  • the luminescence signal S3 of the third detector 3 ( however, in this case the subsequent detection range D3) is negligibly small, compare Figure 4b.
  • the luminescence signal of the second detector 2 (previous detection range D2) in this case, however, considerable, see Figure 4c.
  • the ratio S2 / S1 can be formed, on the basis of which the decay time of the luminescence can be checked and unambiguously determined if necessary, compare Figure 5b
  • the decay time of the luminescence can also be checked on the basis of all three luminescence signals Sl, S2 and S3.
  • a decay time ⁇ which corresponds approximately to the mean value of the decay time Xk and xi would then produce clear luminescence signals S1, S2, S3 for all three detectors 1, 2 and 3.
  • the decay time x can be checked, for example, in a specific average speed range on the basis of all three luminescence signals S1, S2 and S3, eg forming both ratios S3 / S1 and S2 / S1, and at low speeds using the first and second luminescence signals S1, S2.
  • the detectors 1, 2 and 3 may have similar or the same spectral sensitivity. In the following exemplary embodiment, however, the first detector 1 has a different spectral sensitivity than the second detector 2 and the third detector 3 whose spectral sensitivities at least approximately the same. In the common spectral range, which cover all three detectors 1, 2, 3, their spectral sensitivity curve is preferably at least approximately equal. Due to the deviating spectral sensitivity of the first detector 1, it is achieved that the sensor 100, besides checking the decay time ⁇ , can also detect an additional emission light of the value document W, for example the luminescence which is caused by a different luminescent substance than the luminescence whose decay time ⁇ is checked. The additional emission light is preferably detected in a value document area in which the luminescence, whose decay time ⁇ is checked, does not occur.
  • a first detector 1 is used, the spectral sensitivity of which covers an additional spectrum, which the second 2 and the third detector 3 both do not cover.
  • the spectral sensitivity of the first detector 1 extends into a longer-wavelength spectral range than that of the second 2 and the third detector 3.
  • the first detector 1 detects a clear luminescence signal, that of the additional luminescence intensity located in the additional spectral range equivalent. From a luminescence in this additional spectral range, the second 2 and third detector 3 each detect no luminescence signal. The emission of the additional emission light is clearly detectable, since this case is clearly distinguishable from all cases of FIGS. 3, 4 and 5. For there always also the second 2 or the third detector 3 detects a clear luminescence signal.
  • a second 2 and a third detector 3 are used, the spectral sensitivity of each because it covers an additional spectral range that the first detector 1 does not cover.
  • the spectral sensitivity of the second 2 and the third detector 3 each extends into a longer wavelength spectral range than that of the first detector 1.
  • the second 2 and third detector 3 each detect a significant luminescence signal, that in the additional spectral range corresponds to additional luminescence intensity. From a luminescence in this additional spectral range, the first detector 1 does not detect a luminescence signal, only the second or the third detector.
  • the emission of the additional emission light is clearly detectable and clearly distinguishable from all cases of FIGS. 3, 4 and 5.
  • FIG. 2b shows another exemplary embodiment, in which the sensor 100 has further detectors n, which detect the luminescent light of the illuminated value document W which, when it moves relative to the sensor 100, emits in further detection regions Dn of the measurement plane E.
  • the further detection areas Dn are arranged along the direction of movement T, after the preceding detection area D2, but before the first detection area D1.
  • the first, the second, the third and the further detectors 1, 2, 3, n can be formed by a one-dimensional photodetector array in which the detectors are formed on the same substrate, for example.
  • the further detectors Analogously to the first, second and third detectors, the further detectors generate n further luminescence signals Sn of the further detection regions Dn. In analogy to the third luminescence signals, it may be advantageous for certain measurement conditions to also use the luminescence signals Sn for checking the decay time, for which purpose, for example, the ratios Sn / Sl are formed. Furthermore, the sensor 100 further detectors m, which detect the luminescent light of the illuminated value document W in further detection areas Dm of the measurement plane E. The detection areas Dm are arranged along the direction of movement T, after the first detection area Dl. The luminescence signals Sm can also be used to check the decay time of the luminescence.

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  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

L'invention concerne un capteur pour vérification d'un document de valeur, lequel est déplacé par rapport au capteur. Le capteur est agencé de manière à contrôler le temps d'établissement d'une luminescence du document de valeur, sur la base de signaux de luminescence de plusieurs détecteurs. Le capteur comprend un dispositif d'illumination pour illuminer le document de valeur par une lumière d'excitation, et plusieurs détecteurs pour la détection en continu de lumière de luminescence que le document de valeur illuminé émet en différentes zones de détection qui sont disposées, décalées entre elles dans la direction de déplacement du document de valeur. Un premier des détecteurs du capteur est agencé pour la production d'un premier signal de luminescence d'une première zone de détection qui chevauche, dans le plan de mesure, avec la section illuminée, et un second des détecteurs du capteur est agencé pour la production d'un second signal de luminescence d'une zone de détection précédente, qui est disposée dans le plan de mesure, en considérant la direction de déplacement du document de valeur, en avant de la première zone de détection.
EP11715177.9A 2010-04-14 2011-04-12 Capteur pour vérification de documents de valeur Active EP2559010B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010014912A DE102010014912A1 (de) 2010-04-14 2010-04-14 Sensor zur Prüfung von Wertdokumenten
PCT/EP2011/001849 WO2011128080A1 (fr) 2010-04-14 2011-04-12 Capteur pour vérification de documents de valeur

Publications (2)

Publication Number Publication Date
EP2559010A1 true EP2559010A1 (fr) 2013-02-20
EP2559010B1 EP2559010B1 (fr) 2021-08-18

Family

ID=44246308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11715177.9A Active EP2559010B1 (fr) 2010-04-14 2011-04-12 Capteur pour vérification de documents de valeur

Country Status (7)

Country Link
EP (1) EP2559010B1 (fr)
CN (1) CN102893309B (fr)
DE (1) DE102010014912A1 (fr)
ES (1) ES2886756T3 (fr)
MX (1) MX2012010028A (fr)
RU (1) RU2549122C2 (fr)
WO (1) WO2011128080A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6247747B2 (ja) * 2014-04-18 2017-12-13 グローリー株式会社 紙葉類真偽判別装置及び紙葉類真偽判別方法
JP7111494B2 (ja) 2018-04-05 2022-08-02 グローリー株式会社 光検出センサ、光検出装置、シート類処理装置および光検出方法
DE102018109141A1 (de) * 2018-04-17 2019-10-17 Bundesdruckerei Gmbh Smartphone verifizierbares, leuchtstoffbasiertes Sicherheitsmerkmal und Anordnung zur VerifizierungSmartphone verifizierbares, leuchtstoffbasiertes Sicherheitsmerkmal und Anordnung zur Verifizierung
DE102021000807A1 (de) * 2021-02-16 2022-08-18 Giesecke+Devrient Currency Technology Gmbh Sensor zur Prüfung von Wertdokumenten
EP4295333A1 (fr) * 2021-02-16 2023-12-27 Giesecke+Devrient Currency Technology GmbH Capteur pour le contrôle de la luminescence de documents de valeur

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1449107B1 (de) * 1961-04-15 1969-09-04 Telefunken Patent Verfahren zum Abtasten von Aufzeichnungsträgern,deren Abtastfeld mit lumineszierenden Zeichen versehen ist,insbesondere für selbsttätige Sortierung von Postsendungen
EP0448931B1 (fr) * 1990-01-26 1996-04-03 Canon Kabushiki Kaisha Procédé pour mesurer un spécimen sous utilisation de lumière fluorescente
DE59208542D1 (de) * 1991-10-14 1997-07-03 Mars Inc Einrichtung zum optischen Erkennen von Dokumenten
US5674698A (en) * 1992-09-14 1997-10-07 Sri International Up-converting reporters for biological and other assays using laser excitation techniques
DE19651101A1 (de) * 1996-12-09 1998-06-10 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zur Detektion von fluoreszentem und phosphoreszentem Licht
US6091563A (en) * 1997-09-26 2000-07-18 Iomega Corporation Latent illuminance discrimination marker system for data storage cartridges
US6380547B1 (en) * 1998-06-09 2002-04-30 Manuel E. Gonzalez Tagging compositions and methods
US6473165B1 (en) * 2000-01-21 2002-10-29 Flex Products, Inc. Automated verification systems and methods for use with optical interference devices
DE60040595D1 (de) * 2000-05-16 2008-12-04 Sicpa Holding Sa Verfahren , Vorrichtung und System zur Authentifikation einer Markierung
ES2392395T3 (es) * 2001-03-01 2012-12-10 Sicpa Holding Sa Detector mejorado de características de luminiscencia
DE10322794B4 (de) * 2003-05-19 2011-08-11 Bundesdruckerei GmbH, 10969 Sensor für die Echtheitserkennung eines lumineszierenden Sicherheitselements eines Wertdokuments, Wertdokument sowie Verfahren zur Herstellung eines Wertdokuments
DE10346631A1 (de) * 2003-10-08 2005-05-19 Giesecke & Devrient Gmbh Wertdokument
GB0525665D0 (en) * 2005-12-16 2006-01-25 Filtrona Plc Detector and method of detection
EP1814058B1 (fr) * 2006-01-26 2011-06-01 Microscan Systems, Inc. Procédé et dispositif destinés à l'enregistrement de la modification de l'intensité luminescente d'une substance fluorescente
EP1898365A1 (fr) * 2006-08-23 2008-03-12 E.I. Dupont de Nemours and Company Procédé et appareil pour vérifier l'authenticité d'un article par la détection de marqueurs de sécurité luminescents codés
DE102006045626A1 (de) * 2006-09-27 2008-04-03 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zur optischen Untersuchung von Wertdokumenten
CN201311676Y (zh) * 2008-08-09 2009-09-16 深圳贝斯特机械电子有限公司 人民币鉴别仪

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2011128080A1 *

Also Published As

Publication number Publication date
RU2549122C2 (ru) 2015-04-20
CN102893309A (zh) 2013-01-23
EP2559010B1 (fr) 2021-08-18
MX2012010028A (es) 2012-09-21
RU2012148171A (ru) 2014-05-20
ES2886756T3 (es) 2021-12-20
WO2011128080A1 (fr) 2011-10-20
CN102893309B (zh) 2016-08-24
DE102010014912A1 (de) 2011-10-20

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