EP2361374A1 - Vorrichtung zur visuellen beurteilung und dokumentation von farbeffekten - Google Patents
Vorrichtung zur visuellen beurteilung und dokumentation von farbeffektenInfo
- Publication number
- EP2361374A1 EP2361374A1 EP09760738A EP09760738A EP2361374A1 EP 2361374 A1 EP2361374 A1 EP 2361374A1 EP 09760738 A EP09760738 A EP 09760738A EP 09760738 A EP09760738 A EP 09760738A EP 2361374 A1 EP2361374 A1 EP 2361374A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- lighting
- sample
- illumination
- plane
- 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.)
- Ceased
Links
- 230000000694 effects Effects 0.000 title claims abstract description 16
- 238000005286 illumination Methods 0.000 claims abstract description 21
- 238000013459 approach Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract description 10
- 239000000049 pigment Substances 0.000 description 8
- 239000003973 paint Substances 0.000 description 6
- 235000019557 luminance Nutrition 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000002966 varnish 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
- G01J3/46—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
- G01J3/02—Details
- G01J3/0267—Sample holders for 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
-
- 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
- G01J3/504—Goniometric colour measurements, for example measurements of metallic or flake based paints
Definitions
- the present invention relates to a device comprising a motor-controlled lighting and observation system for the standardized and reproducible assessment of visual color effects, which is characterized in that in a light chamber, the illumination and observation angles to an object reproducible
- Effect coatings are often characterized by the fact that they change their color with the viewing angle and the light conditions.
- a glittering effect is often observed, which works differently in sunshine than in overcast skies.
- the BYK-mac staining and texture measuring system from Byk-Gardner is known from the prior art, which, in addition to the overall color impression, additionally measures the metrological evaluation of the texture under different illumination angles. However, this measurement system also does not eliminate the discrepancies between visual and instrumental findings.
- observation and documentation device which does not have the disadvantages mentioned above and at the same time provides reproducible values for the color tone impression.
- the observation and documentation device according to the invention should allow the
- This device is a motorized lighting and observation system with diffuse and direct illumination sources.
- the subject of the present invention is therefore a device comprising a motor-controlled illumination and observation system for the standardized and reproducible assessment and documentation of color effects, characterized in that the types of light can be adjusted in a light chamber, the light cabin having a sample holder (3), and the sample holder is vertically and horizontally rotatable and in the lighting level (in plan) at least nine and outside the lighting level (out of plane) can approach at least 35 different positions, and the Light chamber with diffused (1) and direct (2) sources of illumination is equipped.
- the lighting and observation system according to the invention is a full-height measuring device, wherein in a light booth samples can be compared and evaluated, e.g. painted plastic parts, sheets or paint cards.
- the incidence of light in the light cabin can be adjusted at different angles.
- the device consists of two rectangular assemblies that are stackable on top of each other.
- the rotational movement can be realized by a worm gear.
- the tilting movement is preferably carried out by means of a toothed belt drive.
- the servo drives enable a positioning accuracy of +/- 10 '.
- the table can be moved from the horizontal to any angular position within the limits between + 45 ° and -45 °.
- the rotation about the vertical axis is possible in the range of -180 ° / 0 ° / + 180 °.
- magnetic holders can be embedded in the tabletop to hold the samples.
- different light sources (1, 2) different light conditions, e.g. so-called “color temperatures of light”, as well as set different light intensities: sunlight, diffused light as in cloudy sky, but also other known types of artificial light.
- trusses For the direct illumination of the samples are on the table one, two or three or more trusses, preferably at least three trusses (2), which are freely adjustable in their inclination to the table top. These trusses accommodate flexible light guides that direct the light from the light sources to the samples. The light sources are arranged below the table top. - A -
- the light booth contains at least three direct light sources, preferably trusses with light guides, e.g. Devices from the company Leica type KL2500LCD with adjustable color temperatures between 2600 ° to 3300 ° K (optionally by using a filter also between 5800 ° to 6500 ° K), which at an angle (measured to the sample table normal) 15 °, 45 ° and 65 ° are arranged at a distance of 45 cm. This allows irradiation intensities of up to 7500 lux in the sample plane (at 15 °).
- the light sources are rigidly connected to the sample table via stirrups.
- samples or pairs of samples which lie on the motor rotatable and pivotable sample table (2 mutually perpendicular axes, servo-motor with angular resolutions up to the second range), are thus always irradiated from the same direction of illumination, depending on which of the light sources is activated and independent by how much degree the sample table
- At least 35 different table positions can be approached in the measuring device according to the invention in the plane of illumination (in plane) at least 9 and outside the illumination plane (out of plane), whereby at least 27 observation geometries and out-of plane at least 105 with the three illumination directions in-plane Obtain observation geometries, which will approach one after the other according to the observer actions.
- Observational geometries are all included, for example, in customary goniometric measuring geometries (eg X-Rite MA68, BYK-mac). 5
- the entire instrument is provided with a hood, which is customary in the (automotive) industry lighting unit (1), 1 ⁇
- the manufacturer X-Rite type Spectralight 3 contains.
- the direct illumination can be displayed and the diffuse illumination can be activated in several types of light (eg D65, A, CWF, TL84, horizon daylight). 15
- sample table Due to the illumination of the sample table preferably 3 ⁇ samples with dimensions up to a maximum of 20 * 20 cm 2 , or when comparing pairs up to 20 * 10 cm 2 examined and arranged flush with each other.
- the upper assembly (light chamber) is closed on three sides and 35 open from the front over a door to align the samples to be measured.
- an aperture (5) In the door there is an aperture (5), which ensures that the viewer looks at the samples from a defined position (viewing angle).
- Shots are several common algorithms available in the Luminance Camera Recording program.
- An irradiance sensor measures the irradiation intensity and the ⁇ ⁇ illuminance at the sample plane; the positioning of the samples in always the same way can be facilitated, for example, by a laser crosshair, which is faded into the sample planes.
- the control of the motor technology as well as the illumination can be realized by means of a SPS 25 (system programmable control).
- SPS 25 system programmable control
- the system is operated by means of rotary switches and push buttons, which are located in a control panel (4) under the hood.
- the measuring system it is possible to visually judge the correctness of the measured values under the exact same measuring geometries. In this way, e.g. the range of tasks of the measuring instruments is extended and possible sources of error are eliminated.
- the measuring device according to the invention is particularly applicable where the optical effect of effect pigments such as pearlescent pigments, interference pigments, metal effect pigments, goniochromatic pigments must be 35 judges.
- effect pigments such as pearlescent pigments, interference pigments, metal effect pigments, goniochromatic pigments
- the measuring device according to the invention helps, for example, to adapt the composition of the car paint and thus also of the pigments precisely to the respective carrier material, so that the car has a uniform appearance, ie color and texture match.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810059768 DE102008059768A1 (de) | 2008-12-01 | 2008-12-01 | Vorrichtung zur visuellen Beurteilung und Dokumentation von Farbeffekten |
| PCT/EP2009/008174 WO2010063371A1 (de) | 2008-12-01 | 2009-11-17 | Vorrichtung zur visuellen beurteilung und dokumentation von farbeffekten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2361374A1 true EP2361374A1 (de) | 2011-08-31 |
Family
ID=41694670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09760738A Ceased EP2361374A1 (de) | 2008-12-01 | 2009-11-17 | Vorrichtung zur visuellen beurteilung und dokumentation von farbeffekten |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2361374A1 (de) |
| DE (1) | DE102008059768A1 (de) |
| WO (1) | WO2010063371A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010044956B4 (de) * | 2010-09-10 | 2012-05-24 | Merck Patent Gmbh | Goniochromatisches Messverfahren zur Charakterisierung von Pigmenten und Füllstoffen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3708233A (en) | 1971-01-12 | 1973-01-02 | Du Pont | Multi-angle panel holding device |
| DE8900609U1 (de) | 1989-01-20 | 1989-03-09 | Herberts Gmbh, 5600 Wuppertal | Abmusterungskammer zur visuellen Beurteilung von farbigen Prüfobjekten |
| JP2006010508A (ja) | 2004-06-25 | 2006-01-12 | Konica Minolta Sensing Inc | マルチアングル測色計 |
| DE202004011811U1 (de) | 2004-07-28 | 2005-12-08 | Byk-Gardner Gmbh | Vorrichtung zur goniometrischen Untersuchung optischer Oberflächeneigenschaften |
-
2008
- 2008-12-01 DE DE200810059768 patent/DE102008059768A1/de not_active Withdrawn
-
2009
- 2009-11-17 WO PCT/EP2009/008174 patent/WO2010063371A1/de not_active Ceased
- 2009-11-17 EP EP09760738A patent/EP2361374A1/de not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2010063371A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010063371A1 (de) | 2010-06-10 |
| DE102008059768A1 (de) | 2010-06-02 |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MEZGER, NORBERT Inventor name: SCHWARZ, FRANK |
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| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
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Effective date: 20191208 |