WO1996024046A1 - Vorrichtung zur farbmessung - Google Patents
Vorrichtung zur farbmessung Download PDFInfo
- Publication number
- WO1996024046A1 WO1996024046A1 PCT/EP1996/000173 EP9600173W WO9624046A1 WO 1996024046 A1 WO1996024046 A1 WO 1996024046A1 EP 9600173 W EP9600173 W EP 9600173W WO 9624046 A1 WO9624046 A1 WO 9624046A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- measuring device
- intensity
- measuring
- color
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 25
- 230000003595 spectral effect Effects 0.000 claims abstract description 11
- 238000002310 reflectometry Methods 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims 3
- 239000012780 transparent material Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 239000004904 UV filter Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
-
- 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
-
- 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
- G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
- G01J3/524—Calibration of colorimeters
-
- 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
- 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
- G01J3/28—Investigating the spectrum
- G01J2003/2866—Markers; Calibrating of scan
-
- 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
- G01J3/513—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters having fixed filter-detector pairs
Definitions
- the present invention relates to a device for color measurement according to the preamble of claim 1.
- Such a device can e.g. can be found in EP 0 242 725 B1.
- EP 0 240 610 B1 shows a device for measuring the moisture and density of a sheet material, in which coherent, electromagnetic radiation of different frequencies is directed onto the material and the reflected and transmitted radiation is evaluated. The emitted and irradiated radiation is not recorded here.
- Fig. 1 shows the spectral reflectivity of a
- Fig. 2 shows the spectral reflectance of a measured material depending on the
- Wavelength with the distance of a deposit thereof as a parameter shows a device for color measurement according to the prior art; and FIG. 4 shows a device according to the invention for
- FIG. 2 shows that when the measured material is deposited with a selected one
- Color tile the reflectivity has very different values, depending on the distance between the material to be measured and the color tile.
- Fig. 3 shows a known device for color measurement, which has the disadvantages mentioned above.
- color tiles 16 of different colors are arranged on an octagon, which can be brought into a position via a background control 18, where they deposit the material web 10.
- a xenon flash ring torch 20 is arranged in the lower part 12, the light of which is reflected via a beam splitter 22 to the material web 10 and falls through the beam splitter 22 onto a reference measuring point 24.
- the light reflected by the material web 10 is detected at a measuring location 26. Since the xenon flash light ring lamp 20 has a spectrum extending into the UV range, and the UV components in the light cast onto the material web 10 generate light in the visible range if the material web contains optical brighteners which are detected at the measuring location 26 If the measurement is falsified, a further xenon flash light ring lamp 20 'is arranged below and symmetrically to the beam splitter 22 and the beam splitter 22 is provided with the property of a UV filter. Both ring lamps 20, 20 * are operated alternately, so that light is received alternately both at the actual measuring location 26 and at the reference measuring location 24 which does not contain the UV components or light caused by the UV components, thereby improving the accuracy of the measurement.
- the light radiation received at the measurement location 26 and at the reference measurement location 24 is guided in each case via fiber bundles 28, 28 'and fiber optics 30, 30' to optical filters 32, 32 *, behind which photodiodes 34, 34 'are arranged, which the signals in the different spectral ranges.
- these signals are fed to a computer 38 which calculates the color reflectivity in the individual spectral ranges from the ratio of the reflected intensity to the incident intensity.
- the computer controls the selection of the corresponding color tile 16 via the background control 18. In addition, it controls the alternating activation of the ring lamps 20, 20 '.
- the device according to the invention according to FIG. 4 differs from the known device according to FIG. 3 by the arrangement of an additional measuring location 40 for receiving the light transmitted through the material web 10 in the upper part 14 of the measuring carriage, the measuring signals in turn via a fiber bundle 28 "and a fiber optic 30 "on optical filters 32" are performed, behind which photodiodes 34 "are arranged.
- Color reflectivity radiated intensity - transmitted
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/875,392 US5933243A (en) | 1995-02-04 | 1996-01-17 | Device for color measuring |
GB9716174A GB2313909B (en) | 1995-02-04 | 1996-01-17 | Device for colour measuring |
SE9702834A SE521091C2 (sv) | 1995-02-04 | 1997-07-31 | Anordning för färgmätning |
FI973191A FI117606B (fi) | 1995-02-04 | 1997-08-01 | Laite värimittausta varten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19503763A DE19503763C2 (de) | 1995-02-04 | 1995-02-04 | Vorrichtung zur Farbmessung |
DE19503763.4 | 1995-02-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996024046A1 true WO1996024046A1 (de) | 1996-08-08 |
Family
ID=7753236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/000173 WO1996024046A1 (de) | 1995-02-04 | 1996-01-17 | Vorrichtung zur farbmessung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5933243A (de) |
DE (1) | DE19503763C2 (de) |
FI (1) | FI117606B (de) |
GB (1) | GB2313909B (de) |
SE (1) | SE521091C2 (de) |
WO (1) | WO1996024046A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19638065A1 (de) * | 1996-09-18 | 1998-03-19 | Massen Machine Vision Systems | Automatische Qualitätskontrolle von Fliesen |
DE19814490A1 (de) * | 1998-04-01 | 1999-10-07 | Voith Sulzer Papiertech Patent | Verfahren zur Vermeidung oder Beseitigung von Verstopfungen der Austrittsöffnung des Dosierspaltes eines Düsenauftragwerkes |
DE19833859C1 (de) * | 1998-07-28 | 2000-03-30 | Basf Coatings Ag | Verfahren zur Ermittlung der Farbtonstabilität von Lacken |
DE19853120C1 (de) * | 1998-11-18 | 2001-09-27 | Igt Emus Elektronische Mess Un | Verfahren und Meßeinrichtung zum Messen der Transparenz, Opazität und Wolkigkeit |
DE10010213B4 (de) * | 2000-03-02 | 2005-02-17 | Carl Zeiss Jena Gmbh | Optische Meßvorrichtung, insbesondere zur Qualitätsüberwachung bei kontinuierlichen Prozessen |
DE10234084B4 (de) * | 2002-07-26 | 2006-06-14 | Koenig & Bauer Ag | Vorrichtung zur Inspektion von bogenförmigen Material |
US7859668B2 (en) | 2005-12-15 | 2010-12-28 | Honeywell International Inc. | Apparatus and method for illuminator-independent color measurements |
US8017927B2 (en) * | 2005-12-16 | 2011-09-13 | Honeywell International Inc. | Apparatus, system, and method for print quality measurements using multiple adjustable sensors |
US7573575B2 (en) | 2005-12-29 | 2009-08-11 | Honeywell International Inc. | System and method for color measurements or other spectral measurements of a material |
US7688447B2 (en) | 2005-12-29 | 2010-03-30 | Honeywell International Inc. | Color sensor |
US8049892B2 (en) * | 2008-01-22 | 2011-11-01 | Honeywell International Inc. | Apparatus and method for camera-based color measurements |
US7592608B2 (en) * | 2008-01-22 | 2009-09-22 | Honeywell International Inc. | Apparatus and method for measuring and/or controlling ultraviolet-activated materials in a paper-making process |
US8401809B2 (en) | 2010-07-12 | 2013-03-19 | Honeywell International Inc. | System and method for adjusting an on-line appearance sensor system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1190070A (en) * | 1966-11-18 | 1970-04-29 | Ceskoslovenska Akademie Ved | Optical Apparatus for Determining Transmitting and Reflection Densities of Sheet Material |
US4288160A (en) * | 1973-12-28 | 1981-09-08 | Nekoosa Papers Inc. | Optical property measurement system and method |
EP0242725A2 (de) * | 1986-04-23 | 1987-10-28 | Kollmorgen Instruments Corporation | Spektrophotometer für Fernablesung |
DE3831287A1 (de) * | 1988-09-14 | 1990-03-15 | Ind Tech Res Inst | Optisches colorimeter |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3936189A (en) * | 1974-03-13 | 1976-02-03 | Sentrol Systems Ltd. | On-line system for monitoring the color, opacity and brightness of a moving web |
DE2805967A1 (de) * | 1978-02-13 | 1979-08-16 | Aral Austria Ges Mbh | Vorrichtung zur pruefung von dokumenten |
US4565444A (en) * | 1982-11-01 | 1986-01-21 | Sentrol Systems Ltd. | Electronically scanned spectrometer color, brightness and opacity measurement and control system |
DE3315377A1 (de) * | 1983-02-19 | 1984-08-23 | Dr. Bruno Lange Gmbh, 1000 Berlin | Farbmessgeraet |
US4789820A (en) * | 1986-01-08 | 1988-12-06 | Hercules Incorporated | Apparatus and method for sensing multiple parameters of sheet material |
US4886355A (en) * | 1988-03-28 | 1989-12-12 | Keane Thomas J | Combined gloss and color measuring instrument |
-
1995
- 1995-02-04 DE DE19503763A patent/DE19503763C2/de not_active Expired - Fee Related
-
1996
- 1996-01-17 GB GB9716174A patent/GB2313909B/en not_active Expired - Fee Related
- 1996-01-17 WO PCT/EP1996/000173 patent/WO1996024046A1/de active IP Right Grant
- 1996-01-17 US US08/875,392 patent/US5933243A/en not_active Expired - Fee Related
-
1997
- 1997-07-31 SE SE9702834A patent/SE521091C2/sv not_active IP Right Cessation
- 1997-08-01 FI FI973191A patent/FI117606B/fi not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1190070A (en) * | 1966-11-18 | 1970-04-29 | Ceskoslovenska Akademie Ved | Optical Apparatus for Determining Transmitting and Reflection Densities of Sheet Material |
US4288160A (en) * | 1973-12-28 | 1981-09-08 | Nekoosa Papers Inc. | Optical property measurement system and method |
EP0242725A2 (de) * | 1986-04-23 | 1987-10-28 | Kollmorgen Instruments Corporation | Spektrophotometer für Fernablesung |
DE3831287A1 (de) * | 1988-09-14 | 1990-03-15 | Ind Tech Res Inst | Optisches colorimeter |
Also Published As
Publication number | Publication date |
---|---|
FI973191A0 (fi) | 1997-08-01 |
FI117606B (fi) | 2006-12-15 |
FI973191A (fi) | 1997-08-01 |
GB2313909B (en) | 1999-03-31 |
SE9702834D0 (sv) | 1997-07-31 |
DE19503763C2 (de) | 1996-11-28 |
DE19503763A1 (de) | 1996-08-08 |
US5933243A (en) | 1999-08-03 |
GB2313909A (en) | 1997-12-10 |
SE521091C2 (sv) | 2003-09-30 |
GB9716174D0 (en) | 1997-10-08 |
SE9702834L (sv) | 1997-07-31 |
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