DD275309A1 - METHOD AND ARRANGEMENT FOR DETERMINING GLOSS AND COLOR DIFFERENCES - Google Patents
METHOD AND ARRANGEMENT FOR DETERMINING GLOSS AND COLOR DIFFERENCES Download PDFInfo
- Publication number
- DD275309A1 DD275309A1 DD88319370A DD31937088A DD275309A1 DD 275309 A1 DD275309 A1 DD 275309A1 DD 88319370 A DD88319370 A DD 88319370A DD 31937088 A DD31937088 A DD 31937088A DD 275309 A1 DD275309 A1 DD 275309A1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- gloss
- polychromatic
- color differences
- arrangement
- laser
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000011156 evaluation Methods 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 2
- 238000003908 quality control method Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001303 quality assessment method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 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
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N2021/1734—Sequential different kinds of measurements; Combining two or more methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/069—Supply of sources
- G01N2201/0691—Modulated (not pulsed supply)
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)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Das Verfahren und Anordnung zur gleichzeitigen Bestimmung von Glanz- und Farbdifferenzen an ebenen, emaillierten, glasierten oder aehnlich oberflaechenvorbehandelten Gegenstaenden findet sowohl in der Produktion als auch im Forschungslabor sowie bei der Qualitaetskontrolle einzelner Chargen, Anwendung. Die erfindungsgemaesse Loesung besteht darin, dass gleichzeitig die Reflexionen eines Laserstrahls und einer polychromatischen Lampe durch einen Sensor aufgefangen und zu einer Auswerteeinheit weitergeleitet werden. Fig. 1The method and arrangement for the simultaneous determination of gloss and color differences on flat, enameled, glazed or similar surface pretreated articles is used both in production and in the research laboratory as well as in the quality control of individual batches. The inventive solution is that at the same time the reflections of a laser beam and a polychromatic lamp are collected by a sensor and forwarded to an evaluation unit. Fig. 1
Description
Hierzu 1 Seite ZeichnungFor this 1 page drawing
Das Verfahren und Anordnung zur gleichzeitigen Bestimmung von Glanz- und Farbdifferenzen findet Anwendung bei der Qualitätsbeurteilung lackierter und emaillierter Oberflächen sowie bei der Forschung und Entwicklung auf diesen Gebieten.The method and arrangement for the simultaneous determination of gloss and color differences is used in the quality assessment of painted and enameled surfaces as well as in research and development in these areas.
gelöst. Die Möglichkeit, die Farbe durch Remissionskurven zu beschreiben ist zwar möglich, jedoch bereits im Forschungslabormit einem hohen apparativen und zeitlichen Aufwand verbunden; unter Produktionsbedingungen nicht realisierbar (Handbuchfür Bayer Email, Dr.Kyri, 1974).solved. The possibility of describing the color by means of remission curves is possible, but already connected in the research laboratory with a high expenditure on equipment and time; not feasible under production conditions (Handbuch für Bayer Email, Dr.Kyri, 1974).
und violetten Farben beträchtliche Abweichungen auf (Handbuch für Bayer Email, Dr.Kyri, 1974).and violet colors show considerable deviations (Handbuch für Bayer Email, Dr.Kyri, 1974).
symmetrisch zu einer gedachten Senkrechten im gleichen Winkel wie sie einfallen zurückgeworfen.symmetrical to an imaginary vertical at the same angle as they are thrown back.
nur einfache Gerate, bei denen z. B. ein Kreuz reflektiert wird oder verschieden große, offene Ringe in der zu prüfenden Flächereflektiert werden. Die Auswertung erfolgt in beiden Fällen visuell.only simple devices in which z. B. a cross is reflected or differently sized, open rings are reflected in the surface to be tested. The evaluation is done visually in both cases.
- Ziel der Erfindung- Object of the invention
Ziel der Erfindung ist es, ein Verfahren und eine Anordnung zu finden, die gestattet, gleichzeitig die Unterschiede bei Glanz und Farbe unter Bedingungen, die einen Einsatz in der Praxis möglich machen, zu finden.The object of the invention is to find a method and an arrangement which allows to find at the same time the differences in gloss and color under conditions which make possible a practical use.
spektralempfindlichen intensitätsunabhängigen Sensor und einer Auswerteeinheit besteht, vorbeigeführt und dabei das diffuszurückgeworfene Licht der polychromatischen Lichtquelle bzw. das reflektierte Licht der Laserlichtquelle aufgefangen, vomspectrally sensitive intensity-independent sensor and an evaluation unit passes, and thereby collected the diffused back light of the polychromatic light source and the reflected light of the laser light source, from
beeinflussen.influence.
1. In einem Produktionsbetrieb laufen an einer Förderkette hängend lackierte Verkleidungsteile für Kühlschränke an einer Prüfeinrichtung zur gleichzeitigen Bestimmung von Glanz- und Farbdifferenzen vorbei. Dabei sendet ein Helium-Neon-Laser einen Lichtstrahl 0 0,25 mm aus, welcher reflektiert und von der Optik eines Sensors empfangen wird. Der Sensor besteht aus 2 übereinanderliegenden fotoempfindlichen Halbleiterschichten und ist in der Lage, auftreffende Lichtstrahlung in ein Intensitätssignal und in ein weiteres vom ersten unabhängiges Signal umzuwandeln, das den spektralen Schwerpunkt der Strahlung darstellt Gleichzeitig strahlt eine polychromatische Wolfram-Lampe Licht aus, dessen diffuse Reflexion vom gleichen Sensor aufgenommen wird. Ein Modulator in Form einer Lochscheibe Frequenz = 80Hz unterbricht laufend den Laserstrahl, so daß nur kurze Strahlstücke zum Sensor reflektiert werden, deren Intensität durch den Sensor bestimmt wird, die ausgewertet, ein Maß für den Glanz der lackierten Oberflächen geben. In den Pausen, in denen kein reflektierter Laserstrahl zum Sensor gelangen kann, nimmt dieser die diffuse Rückstrahlung der polychromatischen Lampe auf. Dabei wird der Schwerpunkt der Strahlung bestimmt und als Maß für die Farbe dargestellt. Eine vorgegebene Meßtoleranz gestattet, ein Signal zu geben, wenn Glanz oder Farbe über den Toleranzbereich hinausgehen.1. In a production chain hanging parts painted on a conveyor chain for refrigerators run past a test device for the simultaneous determination of gloss and color differences. In this case, a helium-neon laser emits a 0.25 mm light beam, which is reflected and received by the optics of a sensor. The sensor consists of 2 superimposed photosensitive semiconductor layers and is able to convert incident light radiation into an intensity signal and another from the first independent signal, which represents the spectral center of gravity. At the same time, a polychromatic tungsten lamp emits light whose diffuse reflection from the same sensor is recorded. A modulator in the form of a perforated disk frequency = 80Hz continuously interrupts the laser beam, so that only short beam pieces are reflected to the sensor, the intensity of which is determined by the sensor that evaluated, give a measure of the gloss of the painted surfaces. In the breaks, in which no reflected laser beam can reach the sensor, this receives the diffuse reflection of the polychromatic lamp. The focus of the radiation is determined and presented as a measure of the color. A given measurement tolerance allows a signal to be given if gloss or color exceeds the tolerance range.
2. Die Prüfung der Farbdifferenzen verschiedener Färb- oder Emailproben unter Verarbeitungsbedingungen erfolgt, um Farbdifferenzen einzugrenzen und eine Farbstabilität zu erreichen.2. The examination of the color differences of various color or enamel samples under processing conditions to limit color differences and achieve color stability.
Dazu ist in einem Laboratorium ein Gerät aufgebaut, auf dessen Prüf fläche die zu prüfende Probe aufgebracht wird. Senkrecht über der Probe befindet sich eine polychromatische Lampe und im Winkel von 45° ein Laser. Beide Lichtquellen senden entsprechendes Licht aus, das durch einen Modulator alternierend auf die Optik eines Sensors trifft und ausgewertet wird. Durch dieses Verfahren ist es möglich, in sehr kurzer Zeit Werte für Glanz und Farbe zu erhalten.For this purpose, a device is constructed in a laboratory, on the test surface, the sample to be tested is applied. Perpendicular to the sample is a polychromatic lamp and at a 45 ° angle a laser. Both light sources emit corresponding light, which by means of a modulator alternately impinges on the optics of a sensor and is evaluated. By this method, it is possible to obtain values for gloss and color in a very short time.
Claims (3)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD88319370A DD275309A1 (en) | 1988-09-01 | 1988-09-01 | METHOD AND ARRANGEMENT FOR DETERMINING GLOSS AND COLOR DIFFERENCES |
IT8967111A IT1231860B (en) | 1988-02-23 | 1989-02-21 | Gloss and colour difference determn. |
DE3923869A DE3923869A1 (en) | 1988-09-01 | 1989-07-19 | Gloss and colour difference determn. - by alternating laser beam and polychromatic irradiation and assessment of reflection |
HU893826A HUT53457A (en) | 1988-09-01 | 1989-07-27 | Method and apparatus for detecting difference in colour and brightness of objects symultaneously |
FR8911179A FR2635869A1 (en) | 1988-09-01 | 1989-08-23 | METHOD AND DEVICE FOR SIMULTANEOUS DETERMINATION OF DIFFERENCES IN BRIGHTNESS AND COLOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD88319370A DD275309A1 (en) | 1988-09-01 | 1988-09-01 | METHOD AND ARRANGEMENT FOR DETERMINING GLOSS AND COLOR DIFFERENCES |
Publications (1)
Publication Number | Publication Date |
---|---|
DD275309A1 true DD275309A1 (en) | 1990-01-17 |
Family
ID=5602097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD88319370A DD275309A1 (en) | 1988-02-23 | 1988-09-01 | METHOD AND ARRANGEMENT FOR DETERMINING GLOSS AND COLOR DIFFERENCES |
Country Status (4)
Country | Link |
---|---|
DD (1) | DD275309A1 (en) |
DE (1) | DE3923869A1 (en) |
FR (1) | FR2635869A1 (en) |
HU (1) | HUT53457A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4243885A1 (en) * | 1992-12-23 | 1994-06-30 | Fogra Forschungsgesellschaft D | Measuring colour and sheen of specimen surface |
-
1988
- 1988-09-01 DD DD88319370A patent/DD275309A1/en not_active IP Right Cessation
-
1989
- 1989-07-19 DE DE3923869A patent/DE3923869A1/en not_active Withdrawn
- 1989-07-27 HU HU893826A patent/HUT53457A/en unknown
- 1989-08-23 FR FR8911179A patent/FR2635869A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2635869A1 (en) | 1990-03-02 |
HUT53457A (en) | 1990-10-28 |
DE3923869A1 (en) | 1990-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RNU | Legal successor of the former company | ||
ENJ | Ceased due to non-payment of renewal fee |