FR2423773A1 - Procede et dispositif de detection d'une zone fluorescente sur une feuille de papier - Google Patents
Procede et dispositif de detection d'une zone fluorescente sur une feuille de papierInfo
- Publication number
- FR2423773A1 FR2423773A1 FR7909963A FR7909963A FR2423773A1 FR 2423773 A1 FR2423773 A1 FR 2423773A1 FR 7909963 A FR7909963 A FR 7909963A FR 7909963 A FR7909963 A FR 7909963A FR 2423773 A1 FR2423773 A1 FR 2423773A1
- Authority
- FR
- France
- Prior art keywords
- sheet
- paper
- detection
- ultraviolet
- level
- 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
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000001514 detection method Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 abstract 3
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/12—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Analytical Chemistry (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Artificial Intelligence (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Procédé de détection, sur une feuille de papier, d'une zone devenant fluorescente lorsqu'elle est exposée à un rayonnement ultraviolet, selon lequel on éclaire la feuille 11 défilant devant un détecteur 15 au moyen d'une source de lumière ultraviolette 1 modulée au moyen d'une fréquence comprise entre 1 et 10 KHz, capte d'une part le rayonnement de fluorescence modulé, l'amplifie et le démodule au moyen d'un circuit d'amplification 20 et de démodulation 21 et mesure d'autre part l'intensité de la source ultraviolette au moyen d'un élément photoélectrique 30 associé à un circuit de détection et de démodulation 31 délivrant un second signal. Ce second signal est utilisé pour réguler le niveau du signal de sortie correspondant au rayonnement de fluorescence par régulation du niveau d'au moins un trigger 23, 24, 25 auquel est appliqué le signal de sortie. procédé est destiné, en particulier, à l'authentification de titres et documents analogues.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH413178A CH622369A5 (fr) | 1978-04-18 | 1978-04-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2423773A1 true FR2423773A1 (fr) | 1979-11-16 |
FR2423773B1 FR2423773B1 (fr) | 1984-02-03 |
Family
ID=4270406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7909963A Granted FR2423773A1 (fr) | 1978-04-18 | 1979-04-12 | Procede et dispositif de detection d'une zone fluorescente sur une feuille de papier |
Country Status (8)
Country | Link |
---|---|
US (1) | US4275299A (fr) |
JP (1) | JPS54140425A (fr) |
CH (1) | CH622369A5 (fr) |
DE (1) | DE2915423A1 (fr) |
ES (1) | ES8103413A1 (fr) |
FR (1) | FR2423773A1 (fr) |
GB (1) | GB2018984B (fr) |
IT (1) | IT1112233B (fr) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3038602C2 (de) * | 1980-10-13 | 1986-09-25 | COPYTEX GmbH Sicherheitssysteme, 7730 Villingen-Schwenningen | Verfahren zum Erkennen der Echtheit eines Datenträgers |
DE3127195A1 (de) * | 1981-07-07 | 1983-04-21 | Libbey-Owens-Ford Co., Toledo, Ohio | Verfahren und vorrichtung zur feststellung des vorhandenseins von spuren fluoreszierender, auf einer oberflaeche von in einer bestimmten richtung orientierten scheibenfoermigen gegenstaenden waehrend ihrer formung niedergeschlagener materialien |
FR2509858B1 (fr) * | 1981-07-15 | 1985-12-27 | Libbey Owens Ford Co | Procede et dispositif de controle de la presence de traces de matiere fluorescente sur une plaque de verre |
GB8311795D0 (en) * | 1983-04-29 | 1983-06-02 | De La Rue Syst | Detecting luminescent security features |
GB2217833A (en) * | 1988-04-30 | 1989-11-01 | Cranfield Inst Of Tech | Registration mark detection system |
GB2219080B (en) * | 1988-05-06 | 1992-11-04 | Gersan Ets | Identifying gemstones |
US5206699A (en) * | 1988-05-06 | 1993-04-27 | Gersan Establishment | Sensing a narrow frequency band of radiation and gemstones |
GB2219078B (en) * | 1988-05-06 | 1992-08-26 | Gersan Ets | Identifying the position of objects or zones |
FR2660462B1 (fr) * | 1990-03-30 | 1992-07-31 | Ixea | Procede et dispositif de lecture de codes invisibles. |
US5418855A (en) * | 1993-09-27 | 1995-05-23 | Angstrom Technologies, Inc. | Authentication system and method |
JP3678748B2 (ja) * | 1994-01-04 | 2005-08-03 | マース,インコーポレーテッド | 偽造紙幣等の偽造物の検出 |
US5918960A (en) * | 1994-01-04 | 1999-07-06 | Mars Incorporated | Detection of counterfeit objects, for instance counterfeit banknotes |
US5608225A (en) * | 1994-03-08 | 1997-03-04 | Hitachi Maxell, Ltd. | Fluorescent detecting apparatus and method |
DE69513350T2 (de) | 1994-03-17 | 2000-07-27 | Hitachi Maxell, Ltd. | PHOSPHOR, PHOSPHORZUSAMMENSETZUNG und FLUORESZENTER MARK-TRÄGER |
US5548106A (en) * | 1994-08-30 | 1996-08-20 | Angstrom Technologies, Inc. | Methods and apparatus for authenticating data storage articles |
US6181662B1 (en) | 1997-09-26 | 2001-01-30 | Iomega Corporation | Latent irradiance discrimination method and marker system for cartridgeless data storage disks |
US6091563A (en) * | 1997-09-26 | 2000-07-18 | Iomega Corporation | Latent illuminance discrimination marker system for data storage cartridges |
US6264107B1 (en) | 1997-09-26 | 2001-07-24 | Iomega Corporation | Latent illuminance discrimination marker system for authenticating articles |
US6359745B1 (en) | 1997-09-26 | 2002-03-19 | Iomega Corporation | Latent illuminance discrimination marker system for data storage cartridges |
US6201662B1 (en) | 1998-09-25 | 2001-03-13 | Iomega Corporation | Latent illuminance discrimination marker with reflective layer for data storage cartridges |
US6186404B1 (en) | 1998-05-29 | 2001-02-13 | Welch Allyn Data Collection, Inc. | Security document voiding system |
DE19901702A1 (de) | 1999-01-18 | 2000-07-20 | Giesecke & Devrient Gmbh | Verfahren zur Überprüfung des Zustandes einer Vorrichtung zur Prüfung von Blattgut |
US20030112423A1 (en) * | 2000-04-24 | 2003-06-19 | Rakesh Vig | On-line verification of an authentication mark applied to products or product packaging |
EP1237128B1 (fr) | 2001-03-01 | 2012-08-01 | Sicpa Holding Sa | Détecteur de caractéristiques de luminescence amélioré |
CA2354202A1 (fr) * | 2001-07-26 | 2003-01-26 | Deborah Jean Henry | Determination par fluorescence de la teneur en cellules pierreuses |
CN101278323A (zh) * | 2005-07-06 | 2008-10-01 | 寻踪有限公司 | 用于对一个或更多个人员进行定位的***和方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3736428A (en) * | 1958-03-27 | 1973-05-29 | Thompson Ramo Wooldridge Inc | Detecting with ultraviolet light |
US3444517A (en) * | 1965-03-09 | 1969-05-13 | Control Data Corp | Optical reading machine and specially prepared documents therefor |
US3614430A (en) * | 1969-03-10 | 1971-10-19 | Pitney Bowes Alpex | Fluorescent-ink-imprinted coded document and method and apparatus for use in connection therewith |
US3751667A (en) * | 1971-08-10 | 1973-08-07 | G Quittner | Radiation path continuity transducer of high pass frequency |
US3918812A (en) * | 1973-05-07 | 1975-11-11 | Us Energy | Diagnoses of disease states by fluorescent measurements utilizing scanning laser beams |
US3854050A (en) * | 1973-09-11 | 1974-12-10 | Department Of Health Education | High precision fluorometer for measuring enzymatic substrates in tissue |
US3935922A (en) * | 1974-07-16 | 1976-02-03 | Lear Siegler, Inc. | Vehicle guidance mechanism |
US4158778A (en) * | 1978-03-01 | 1979-06-19 | Armstrong Cork Company | Optoelectronic scanning device |
-
1978
- 1978-04-18 CH CH413178A patent/CH622369A5/fr not_active IP Right Cessation
-
1979
- 1979-04-09 GB GB7912375A patent/GB2018984B/en not_active Expired
- 1979-04-10 IT IT21742/79A patent/IT1112233B/it active
- 1979-04-12 FR FR7909963A patent/FR2423773A1/fr active Granted
- 1979-04-17 US US06/030,819 patent/US4275299A/en not_active Expired - Lifetime
- 1979-04-17 DE DE19792915423 patent/DE2915423A1/de not_active Ceased
- 1979-04-18 JP JP4680379A patent/JPS54140425A/ja active Pending
-
1980
- 1980-02-29 ES ES489091A patent/ES8103413A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES489091A0 (es) | 1981-02-16 |
CH622369A5 (fr) | 1981-03-31 |
IT7921742A0 (it) | 1979-04-10 |
GB2018984B (en) | 1982-11-10 |
ES8103413A1 (es) | 1981-02-16 |
DE2915423A1 (de) | 1979-10-31 |
FR2423773B1 (fr) | 1984-02-03 |
JPS54140425A (en) | 1979-10-31 |
US4275299A (en) | 1981-06-23 |
GB2018984A (en) | 1979-10-24 |
IT1112233B (it) | 1986-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |