SE7908324L - PROCEDURE AND DEVICE FOR OPTICAL SEPARATION OF PROVOBS - Google Patents

PROCEDURE AND DEVICE FOR OPTICAL SEPARATION OF PROVOBS

Info

Publication number
SE7908324L
SE7908324L SE7908324A SE7908324A SE7908324L SE 7908324 L SE7908324 L SE 7908324L SE 7908324 A SE7908324 A SE 7908324A SE 7908324 A SE7908324 A SE 7908324A SE 7908324 L SE7908324 L SE 7908324L
Authority
SE
Sweden
Prior art keywords
test
light
analysis unit
provobs
procedure
Prior art date
Application number
SE7908324A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE454023B (en
Inventor
K Jauch
Original Assignee
Sodeco Compteurs De Geneve
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 Sodeco Compteurs De Geneve filed Critical Sodeco Compteurs De Geneve
Publication of SE7908324L publication Critical patent/SE7908324L/en
Publication of SE454023B publication Critical patent/SE454023B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The re-emitted light or the amount of light, reduced after absorption, of a test object (3) and a reference object (2) which are exposed to a single light source (1) is passed to one optical sensor (10, 11, 12) each with the aid of light guides (4, 5, 6). Arranged in the beam path to the optical sensors there are replaceable optical filters (7, 8, 9) having a narrow pass bandwidth. An analysis unit transforms the signals of the reference object (2) and the test object (3) for various working wavelengths by mathematical transforms, standardises these and converts them into a single variable which can be used for a highly significant Good/Bad decision. The analysis unit with its test program is used both to determine the most advantageous filters (7, 8, 9) and, after these have been defined, for distinguishing test objects. <IMAGE>
SE7908324A 1978-10-10 1979-10-08 PROCEDURE FOR OPTICAL SEPARATION OF PROVOBJECT SE454023B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1048078A CH634411A5 (en) 1978-10-10 1978-10-10 Method for determining suitable optical wavelengths, for distinguishing test objects optically, and appliance required therefor and application of the method

Publications (2)

Publication Number Publication Date
SE7908324L true SE7908324L (en) 1980-04-11
SE454023B SE454023B (en) 1988-03-21

Family

ID=4363684

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7908324A SE454023B (en) 1978-10-10 1979-10-08 PROCEDURE FOR OPTICAL SEPARATION OF PROVOBJECT

Country Status (4)

Country Link
CH (1) CH634411A5 (en)
DE (1) DE2924605C2 (en)
DK (1) DK150551C (en)
SE (1) SE454023B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653162A5 (en) * 1981-10-27 1985-12-13 Landis & Gyr Ag DEVICE for currency authentication DOCUMENTS.
SE455547B (en) * 1982-06-29 1988-07-18 Bergstroem Arne APPARATUS FOR AUTHENTICITY OF BOOKLETS
US5404987A (en) * 1989-10-18 1995-04-11 Mars Incorporated Method and apparatus for validating money
GB2238152B (en) * 1989-10-18 1994-07-27 Mars Inc Method and apparatus for validating coins
US5157253A (en) * 1990-09-20 1992-10-20 Chamberlain Mrc, Division Of Duchossois Industries, Inc. Envelope reflectance meter evaluating print contrast
DE4115841B4 (en) * 1991-05-15 2004-11-04 Schölly Fiberoptic GmbH Device for the optical inspection of objects
GB9501921D0 (en) * 1995-02-01 1995-03-22 At & T Global Inf Solution Apparatus for authenticating documents
AU6122196A (en) * 1995-06-20 1997-01-22 Bellcon I/S Method for testing of bank notes, especially dollar bills, and equipment for the implementation of the method
GB2366371A (en) * 2000-09-04 2002-03-06 Mars Inc Sensing documents such as currency items
DE10048447B4 (en) * 2000-09-29 2006-05-18 Premosys Gmbh Method and device for testing self-luminous optoelectronic components
DE102007030384B4 (en) 2007-06-29 2009-02-05 Dade Behring Marburg Gmbh Method for identifying a transparent object based on its absorption spectrum
DE102008028689A1 (en) 2008-06-17 2009-12-24 Giesecke & Devrient Gmbh Sensor device for the spectrally resolved detection of value documents and a method relating to them
DE102008028690A1 (en) 2008-06-17 2009-12-24 Giesecke & Devrient Gmbh Sensor device for the spectrally resolved detection of value documents and a method relating to them

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795553A (en) * 1972-02-17 1973-06-18 Landis & Gyr Ag APPARATUS ALLOWING TO COMPARE RESPECTIVE SPECTRAL RE-EMISSIONS FROM COLORED SURFACES
CH573634A5 (en) * 1974-07-04 1976-03-15 Landis & Gyr Ag
IT1068657B (en) * 1976-11-03 1985-03-21 Nuovo Pignone Spa PERFECTED METHOD FOR CHECKING BANKNOTES AND EQUIPMENT TO MAKE IT

Also Published As

Publication number Publication date
DK150551B (en) 1987-03-23
DK427679A (en) 1980-04-11
DK150551C (en) 1988-02-08
SE454023B (en) 1988-03-21
CH634411A5 (en) 1983-01-31
DE2924605A1 (en) 1980-04-17
DE2924605C2 (en) 1984-06-07

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