EP1525565A1 - Procede et dispositif pour le controle de materiaux - Google Patents

Procede et dispositif pour le controle de materiaux

Info

Publication number
EP1525565A1
EP1525565A1 EP03787715A EP03787715A EP1525565A1 EP 1525565 A1 EP1525565 A1 EP 1525565A1 EP 03787715 A EP03787715 A EP 03787715A EP 03787715 A EP03787715 A EP 03787715A EP 1525565 A1 EP1525565 A1 EP 1525565A1
Authority
EP
European Patent Office
Prior art keywords
light
sensor device
test
test light
light sources
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.)
Withdrawn
Application number
EP03787715A
Other languages
German (de)
English (en)
Inventor
Bernd Rüdiger STÖBER
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1525565A1 publication Critical patent/EP1525565A1/fr
Withdrawn legal-status Critical Current

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
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/86—Investigating moving sheets
    • 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
    • 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

Definitions

  • the invention relates to a device and a method for inspecting material according to the preamble of claim 1 or 12.
  • Such devices are used, for example, but by no means exclusively, for the inspection of printed sheets printed with value notes.
  • the lighting device By means of the lighting device, the sheet-like material is illuminated with a test light, the test light either being reflected on the surface of the material (reflected light inspections) or the material shining through (transmitted light inspection).
  • the test light is then recorded by a sensor device, for example a camera, and the input signals recorded in this process are evaluated in an evaluation unit.
  • a device for the inspection of sheet material is known.
  • two lighting devices and two sensor devices are provided, which are each assigned to one another.
  • the first illumination device is arranged relative to the associated sensor device in such a way that the arcuate material is shone through by the test light, which enables a transmitted light inspection.
  • the second illuminating device is arranged relative to the assigned sensor device such that the test light of the second illuminating device is reflected on the material, which enables incident light inspections.
  • GB 2 002 923 A and DE 15 12 179 B1 show arrangements of light sources for incident light and transmitted light.
  • the invention has for its object to provide a device and a method for inspecting material.
  • An advantage of the device is in particular that only one sensor device, for example a color camera, a color line camera or a CCD camera, is necessary in order to be able to test various test criteria with the device.
  • the invention is based on the basic idea that the different test criteria are tested with different light colors.
  • the lighting device therefore has at least two light sources, each of which has test light of different light color, ie. H. of different wavelengths.
  • At least two different color channels are provided in the sensor device. This makes it possible for the sensor device to record different light colors, which can then be evaluated separately in the evaluation unit. This is because the input signals picked up by the sensor device can be processed separately from one another in accordance with the respective light color by means of the different color channels, so that despite the use of only one sensor device, the different test criteria are not mixed with one another.
  • the light sources emit test light with an essentially monochrome light color.
  • These monochrome light colors can be easily assigned to the different color channels of the sensor device, so that an unwanted falsification or influencing of the input signals on the different color channels is essentially excluded.
  • the spectral position and / or bandwidth of the test light emitted by the light sources is matched to the transmission curve of the sensor device.
  • the lighting device has three light sources, the test light of which is matched to the properties of the three color channels.
  • three light sources with the monochrome light colors red, blue and green can be used for this purpose.
  • the device offers particular advantages if the light sources are arranged at different positions relative to the material. As a result, various test criteria corresponding to the respective position can be checked, but only one sensor device has to be provided.
  • the light sources are adjustable. I.e. By adjusting the light sources, it is then possible to adapt the different light sources to different test criteria.
  • a light source is arranged such that the material is shone through by the corresponding test light.
  • a second light source is also arranged such that the corresponding test light is reflected by the material.
  • two light sources can also be arranged such that the differently colored test lights are reflected at the material at different angles.
  • the input signals caused by the test light in the sensor device are processed on separate color channels, so that different test criteria can be recorded and processed with just one sensor device.
  • the single drawing shows a device for the inspection of sheet material in schematic cross section.
  • the device 01 shown in the drawing has a sensor device 02 designed in the manner of a color line camera, three light sources 03; 04 and 06 and a support 07 on.
  • the material 08 to be inspected is conveyed into the device 01 by means of conveying devices not shown in the drawing and then lies flat on the top of the support 07.
  • a recess 09 is provided in the support 07, so that a test light 12 emitted by the light source 06 arranged below the support 07 can fall into the lens of the sensor device 02.
  • the light source 03 emits the test light 10 with the monochrome light color red.
  • the light source 04 emits a test light 11 with the monochrome light color blue.
  • the light source 06 emits the test light 12 with the monochrome light color green.
  • the Sensor device 02 has three separate color channels for the light colors red, blue and green.
  • the inspection of the image information, in particular the printed image, of the material 08 is carried out as follows. After the arrangement of the material 08 over the recess 09, the light sources 03; 04 and 06 simultaneously their respective test light, 10; 11 and 12 in different light colors. The red test light 10 and the blue test light 11 are reflected at the arcuate material 08 at different angles and fall together into the lens of the sensor device 02. As a result, an angle-dependent incident light inspection of the arcuate material 08 can thus be carried out. At the same time, the green test light 12 emitted by the light source 06 shines through the arcuate material 08 and also falls into the lens of the sensor device 02.
  • a separate transmitted light inspection with the light color green can also be carried out be performed.
  • the assignment of the different light colors to the different reflected light or Transmitted light inspections are basically arbitrary and can be exchanged.
  • test lights 10; 11 and 12 processed in accordance with the different light colors red, blue and green on separate color channels and forwarded to an evaluation device, not shown.
  • the image contents of the individual color channels can thus be processed separately from one another in the evaluation unit.

Landscapes

  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

L'invention concerne un dispositif pour contrôler un matériau au moyen d'un dispositif de détection et d'un dispositif d'éclairage. Après avoir été réfléchie par le matériau et/ou après l'avoir traversé, la lumière de contrôle émise par le dispositif d'éclairage est reçue par le dispositif de détection et analysée par une unité d'évaluation. Le dispositif d'éclairage comprend au moins deux sources lumineuses qui émettent chacune une lumière de contrôle de couleur différente, le dispositif de détection étant doté d'au moins deux canaux de couleurs adaptés aux différentes lumières de contrôle des sources lumineuses.
EP03787715A 2002-07-26 2003-07-22 Procede et dispositif pour le controle de materiaux Withdrawn EP1525565A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10234084A DE10234084B4 (de) 2002-07-26 2002-07-26 Vorrichtung zur Inspektion von bogenförmigen Material
DE10234084 2002-07-26
PCT/DE2003/002466 WO2004017266A1 (fr) 2002-07-26 2003-07-22 Procede et dispositif pour le controle de materiaux

Publications (1)

Publication Number Publication Date
EP1525565A1 true EP1525565A1 (fr) 2005-04-27

Family

ID=30128424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03787715A Withdrawn EP1525565A1 (fr) 2002-07-26 2003-07-22 Procede et dispositif pour le controle de materiaux

Country Status (5)

Country Link
US (1) US20060001880A1 (fr)
EP (1) EP1525565A1 (fr)
AU (1) AU2003258459A1 (fr)
DE (1) DE10234084B4 (fr)
WO (1) WO2004017266A1 (fr)

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FI118828B (fi) * 2004-12-31 2008-03-31 Metso Automation Oy Menetelmä ja laitteisto liikkuvan rainan värin mittaamiseksi
DE202006017363U1 (de) * 2006-11-13 2007-04-19 3R Machines B.V. Vorrichtung zum Erkennen und Analysieren eines aus Farben im Spektral- und Infrarot-Wellenbereich bestehenden Sicherheitszeichens
US8081355B2 (en) * 2007-03-05 2011-12-20 Ricoh Company, Ltd. Illumination unit, image read apparatus, image formation apparatus
CN101520309A (zh) * 2008-02-28 2009-09-02 鸿富锦精密工业（深圳）有限公司 成像装置
DE102008000774A1 (de) * 2008-03-19 2009-09-24 Voith Patent Gmbh Optisches Verfahren und Messvorrichtung für eine Fasern beinhaltende Bahn
DE102009001026A1 (de) * 2009-02-20 2010-08-26 Voith Patent Gmbh Verfahren und Messvorrichtung zur optischen Erfassung und Auswertung einer Fasern beinhaltenden Bahn
DE102009048002A1 (de) * 2009-10-02 2011-04-07 Beb Industrie-Elektronik Ag Verfahren und Vorrichtung zur Überprüfung des Verschmutzungsgrades von Banknoten
US9576419B2 (en) 2010-07-01 2017-02-21 The Coca-Cola Company Merchandiser
US9508211B2 (en) 2010-07-01 2016-11-29 The Coca-Cola Company Merchandiser
US8757434B2 (en) 2010-07-01 2014-06-24 The Coca-Cola Company Merchandiser
WO2012139088A2 (fr) * 2011-04-08 2012-10-11 Accusentry, Inc. Système et procédé pour générer de multiples images entrelacées à l'aide d'une caméra de balayage unique ayant de multiples sources de lumière alternées
CN107478661A (zh) * 2017-09-11 2017-12-15 深圳市中天元光学玻璃有限公司 一种玻璃屏幕在线检测装置
JP7021972B2 (ja) 2018-02-16 2022-02-17 株式会社Ｓｃｒｅｅｎホールディングス 検査装置、インクジェット印刷装置、および検査方法
DE102022134232A1 (de) 2022-12-20 2024-06-20 Manroland Goss Web Systems Gmbh Vorrichtung und Verfahren zur Ermittlung von Farbdichten

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DE2732430C2 (de) * 1977-07-18 1982-04-22 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren und Vorrichtung zum Analysieren einer Reproduktions-Vorlage
US4952058A (en) * 1987-04-27 1990-08-28 Hitach, Ltd. Method and apparatus for detecting abnormal patterns
JPH02302633A (ja) * 1989-05-17 1990-12-14 Murakami Shikisai Gijutsu Kenkyusho:Kk 半透過性シート固有の分光立体角反射率のオンライン測定方法
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Also Published As

Publication number Publication date
AU2003258459A1 (en) 2004-03-03
US20060001880A1 (en) 2006-01-05
DE10234084B4 (de) 2006-06-14
DE10234084A1 (de) 2004-02-12
WO2004017266A1 (fr) 2004-02-26

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