AT321619B - Device for comparing the spectral remission of colored surfaces - especially for checking the authenticity of banknotes and other stamps - Google Patents

Device for comparing the spectral remission of colored surfaces - especially for checking the authenticity of banknotes and other stamps

Info

Publication number
AT321619B
AT321619B AT66373A AT66373A AT321619B AT 321619 B AT321619 B AT 321619B AT 66373 A AT66373 A AT 66373A AT 66373 A AT66373 A AT 66373A AT 321619 B AT321619 B AT 321619B
Authority
AT
Austria
Prior art keywords
banknotes
stamps
authenticity
checking
comparing
Prior art date
Application number
AT66373A
Other languages
German (de)
Inventor
Mustert Rudolf
Ing Claudio Meisser Dipl
Original Assignee
Landis & Gyr Ag
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 Landis & Gyr Ag filed Critical Landis & Gyr Ag
Application granted granted Critical
Publication of AT321619B publication Critical patent/AT321619B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0218—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using optical fibers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/501—Colorimeters using spectrally-selective light sources, e.g. LEDs

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
AT66373A 1972-02-17 1973-01-25 Device for comparing the spectral remission of colored surfaces - especially for checking the authenticity of banknotes and other stamps AT321619B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH230472A CH541840A (en) 1972-02-17 1972-02-17 Device for comparing the spectral remission of colored surfaces

Publications (1)

Publication Number Publication Date
AT321619B true AT321619B (en) 1975-04-10

Family

ID=4230658

Family Applications (1)

Application Number Title Priority Date Filing Date
AT66373A AT321619B (en) 1972-02-17 1973-01-25 Device for comparing the spectral remission of colored surfaces - especially for checking the authenticity of banknotes and other stamps

Country Status (12)

Country Link
AT (1) AT321619B (en)
BE (1) BE795553A (en)
CH (1) CH541840A (en)
DE (1) DE2247205C3 (en)
DK (1) DK144605C (en)
ES (1) ES411639A1 (en)
FR (1) FR2172074B1 (en)
GB (1) GB1384501A (en)
IT (1) IT979043B (en)
NL (1) NL145356B (en)
NO (1) NO138302C (en)
SE (1) SE392177B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125329A (en) * 1976-09-07 1978-11-14 Sterndent Corporation Tristimulus colorimeter
CH634411A5 (en) * 1978-10-10 1983-01-31 Sodeco Compteurs De Geneve Method for determining suitable optical wavelengths, for distinguishing test objects optically, and appliance required therefor and application of the method
US4455090A (en) * 1979-07-26 1984-06-19 The Wiggins Teape Group Limited Apparatus for measuring surface reflectance characteristics
NL8202920A (en) * 1982-07-20 1984-02-16 Tno APPARATUS FOR RECOGNIZING AND EXAMINING LEAF ARTICLES SUCH AS BANKNOTES OR THE LIKE.
WO1985002928A1 (en) * 1983-12-27 1985-07-04 Bergstroem Arne Apparatus for authenticating bank notes
US4881268A (en) * 1986-06-17 1989-11-14 Laurel Bank Machines Co., Ltd. Paper money discriminator
JPS63145926A (en) * 1986-12-10 1988-06-18 Hoya Corp Color sensor
JPH06208613A (en) * 1992-11-13 1994-07-26 Laurel Bank Mach Co Ltd Pattern detector
AT402861B (en) * 1994-03-28 1997-09-25 Oesterr Forsch Seibersdorf METHOD AND ARRANGEMENT FOR DETECTING OR FOR CONTROLLING AREA STRUCTURES OR THE SURFACE TEXTURE
GB2293649B (en) * 1994-09-29 1998-11-04 Mars Inc Apparatus for handling value sheets
US5889883A (en) 1995-01-23 1999-03-30 Mars Incorporated Method and apparatus for optical sensor system and optical interface circuit
GB2332270A (en) * 1997-12-10 1999-06-16 Mars Inc Charge storage photoelectric measurement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480785A (en) * 1965-07-26 1969-11-25 Vendit Inc Method and apparatus for validating documents by spectral analysis of light reflected therefrom
US3451254A (en) * 1965-07-26 1969-06-24 Automation Ind Inc Nondestructive tester
CH484479A (en) * 1969-06-12 1970-01-15 Landis & Gyr Ag Device for the optical authentication of banknotes and other stamps

Also Published As

Publication number Publication date
GB1384501A (en) 1975-02-19
IT979043B (en) 1974-09-30
DE2247205C3 (en) 1975-03-06
FR2172074A1 (en) 1973-09-28
DK144605B (en) 1982-04-13
DE2247205B2 (en) 1974-07-11
ES411639A1 (en) 1976-01-01
NL145356B (en) 1975-03-17
NO138302B (en) 1978-05-02
NL7204746A (en) 1973-08-21
SE392177B (en) 1977-03-14
DE2247205A1 (en) 1973-08-30
NO138302C (en) 1978-08-09
DK144605C (en) 1982-09-20
CH541840A (en) 1973-09-15
FR2172074B1 (en) 1976-01-30
BE795553A (en) 1973-06-18

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee