EP2914955A1 - Vorrichtung zum beleuchten einer stoffoberfläche - Google Patents
Vorrichtung zum beleuchten einer stoffoberflächeInfo
- Publication number
- EP2914955A1 EP2914955A1 EP13782692.1A EP13782692A EP2914955A1 EP 2914955 A1 EP2914955 A1 EP 2914955A1 EP 13782692 A EP13782692 A EP 13782692A EP 2914955 A1 EP2914955 A1 EP 2914955A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- illumination
- spectral characteristic
- measuring
- illuminating
- 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- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 23
- 230000003595 spectral effect Effects 0.000 claims abstract description 64
- 238000005286 illumination Methods 0.000 claims description 67
- 239000004744 fabric Substances 0.000 claims description 42
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 14
- 238000001228 spectrum Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 description 6
- 238000009499 grossing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003708 edge detection Methods 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- 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
- G01J3/0297—Constructional arrangements for removing other types of optical noise or for performing calibration
-
- 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
- G01J3/027—Control of working procedures of a spectrometer; Failure detection; Bandwidth calculation
-
- 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
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
-
- 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
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
Definitions
- the present invention relates to the field of illumination of objects, such as workpieces, for the optical recognition of object recognition.
- objects such as workpieces, products, and the like.
- the surfaces of objects are usually illuminated with white light, wherein the reflected light from an object surface is optically detected and, if necessary, further processed in order to obtain an image of the object.
- the optical detection or the analysis of the optically recorded image of the object can be disturbed by stray light, for example by ambient light such as hall lighting or by stray light. For this reason, there is a need to reduce the influence of stray light in the optical detection of objects, especially in manufacturing facilities.
- the intensity of the object illumination can be increased.
- this can lead to the generation of another stray light, which can disturb, for example, adjacent optical detections.
- Another possibility of reducing the influence of the stray light is to optically detect the stray light and to reduce the intensity of the object illumination in the spectral range of the stray light in order to obtain a homogeneous object illumination.
- this is particularly problematic when the spectral intensity curve of the disturbing light is subject to temporal fluctuations, which is the case for example in artificial lighting or at different times of the day.
- the present invention is based on the finding that the above object can be achieved by adapting an illumination light which is to be used for illuminating a material surface, for example a surface of a workpiece.
- the fabric surface is illuminated at least twice, wherein the spectral reflectance behavior of the fabric surface is detected in a first illumination process.
- the spectral reflectance behavior of the fabric surface which is characterized by a measurement light coming from the fabric surface, is used to adapt the illumination light or its spectral characteristic, in particular color temperature, to the measurement light.
- the spectrum or the color composition of the illuminating light to be used for illuminating the fabric surface is adapted to the optical properties of the fabric surface. If the material surface is characterized, for example, by a stronger intensity of the reflected light in a first spectral range than in a second spectral range, then the intensity of the illumination light in the first spectral range can be higher than the intensity of the illumination light in the second spectral range. In this way, the surface of the substance is illuminated spectrally there with greater intensity, where a stronger response intensity is to be expected. On the other hand, if the material surface absorbs light of a certain wavelength, then, for example, the illumination of the material surface at this wavelength can be dispensed with. This also leads to an energy-efficient illumination of fabric surfaces.
- the invention relates to a device for illuminating a fabric surface with a lighting device for illuminating the fabric surface with a calibration light, a detection device for detecting a measuring light emitted from the fabric surface in response to the calibration light, and a processor device for detecting the spectral characteristic of the measurement light, which characterizes a spectral remission behavior of the fabric surface; wherein the illumination device is designed to generate an illumination light for illuminating the material surface, which has a spectral characteristic which corresponds to the spectral characteristic of the measurement light.
- the measuring light is a light reflected on the cloth surface in response to the calibration light, or a light re-emitted from the cloth surface in response to the calibration light, or one of the cloth surface
- the spectral characteristic of the measuring light is a
- Color spectrum of the measuring light according to a color space, a wavelength spectrum of the measuring light, or a frequency spectrum of the measuring light.
- the illumination device is designed, which is
- illumination light with a spectral characteristic which corresponds to the spectral characteristic of the measuring light within a tolerance range for example 1%, 5% or 10%, in particular, is similar.
- the processor device is designed to transmit an indication of the spectral characteristic of the measurement light to the illumination device.
- the illumination device can be controlled, for example, to generate the desired illumination light.
- the processor device is designed, which
- the illumination device has a plurality of light elements for emitting light of different wavelengths or
- the illumination device is designed to drive at least one light element of the plurality of light elements, in particular each light element of the plurality of light elements, for emitting light of a predetermined intensity in order to set the spectral characteristic of the illumination light.
- the processor device is designed, a
- the detection device comprises an optical sensor for detecting the measurement light.
- the illumination device comprises an optical sensor for detecting an actual illumination light
- the processor device is designed to detect a difference between a spectral characteristic of the actual illumination light and a spectral characteristic of a target illumination light and the illumination device as a function of the difference head for.
- the detection device is designed to detect an image light emitted from the material surface in response to the illumination light.
- the processor device is designed to convert the image light into a test image, in particular into a digital test image.
- the invention relates to a method for illuminating a cloth surface, illuminating the cloth surface with a calibration light, detecting a measuring light emitted from the cloth surface in response to the calibration light, which characterizes a spectral reflectance behavior of the cloth surface, detecting a spectral characteristic of the measuring light, and Illuminate the
- FIG. 1 shows a block diagram of a device for illuminating a fabric surface.
- FIG. 1 shows a block diagram of a device for illuminating a material surface 103 with an illumination device 101 for illuminating the material surface 103 with a calibration light 105, and with a detection device 107 for detecting one of the material surface 103 in response to the calibration light 105
- the measuring light can be, for example, light reflected on the cloth surface 103 or light emitted or re-emitted by the cloth surface 103.
- a processor device 1 1 1 is provided, which is formed, a spectral characteristic, such as a color composition or a
- the spectral characteristic of the measurement light 109 characterizes in particular the spectral remission behavior of the material surface.
- the measuring light may, for example, be a reflected light, a re-emitted light or an emitted light.
- the lighting device 101 is formed, an illumination light 1 to 13
- the lighting process is thus two stages.
- the first stage the first stage
- Illumination device 101 the measurement light 105. After the detection of the spectral characteristic of the measuring light 105, the fabric surface 103 with a
- Illuminated illumination light 1 13 whose spectrum corresponds to the spectrum of the measuring light within a tolerance, for example 5% or 10%.
- the illumination light 1 13 is generated in time after the generation of the measurement light 105.
- the illumination device 101 comprises a plurality of light elements 15, which are provided for emitting the calibration light and / or the illumination light.
- the light elements 1 15, for example, be light emitting diodes (LED), each light of a different color, such as red, green or yellow, or a send out another wavelength.
- LED light emitting diodes
- the optical elements 1 17, for example, a lens be connected downstream of the light elements 1 15, for example, to focus the emitted light.
- the driver 1 19 is an element of
- the driver 1 19 is an element of the processor device 1 1 1.
- the illumination device 101 comprises a sensor 121, which is provided to detect the light generated by the light elements 1 15, optionally after the optics 1 17, as actual light, in particular as actual illumination light, and a corresponding measurement signal of the processor device 1 1 1 for controlling the control of
- Admit lighting device 101 The illumination device 101 is provided to emit both the calibration light 105 for measuring the system on the fabric surface and the illumination light 1 13 in the direction of the material surface 103 by means of the light elements 1 15, which characterizes the spectral light behavior of the fabric surface. That of the fabric surface 103 in response to the calibration light or
- Illuminating light emitted or reflected light is through the
- the detection device 107 comprises an optical sensor 123 which optically detects the light 109 emitted by the material surface 103.
- An output signal of the optical sensor 123 is supplied to a control unit 125.
- the control unit 125 is according to one embodiment an element of
- the controller 125 is an element of the processor device 1 1 1.
- the control unit 125 includes an interface 127 which may be digital and may be embodied, for example, as an I2C, SPI, USB or similar interface.
- the interface 127 may include, for example, an analog-to-digital converter. This is advantageous when the optical sensor 123 converts the detected light into an analog measuring signal. If the optical sensor 123 is provided to convert the detected light into a digital signal, the interface 127 may be, for example, an I2C, SPI or a USB interface.
- the interface 127 is followed by a signal conditioning device 129, which performs, for example, a filtering of an output signal of the interface 127.
- the filtering can, for example, cause signal smoothing.
- the signal smoothing may be dependent, for example, on a frequency or wavelength of the detected or measured light.
- the control unit 125 further comprises an optional calibration device 130, which is provided to receive and calibrate the processed signal data from the signal conditioning device 129.
- the processed signal data in the color value can be calibrated, for example, according to a color space.
- the output data of the calibration device 130 may be determined according to a
- Embodiment of the processor device 1 1 in particular one
- Control device 131 of the processor device 1 1 are supplied.
- the output data may be supplied to the calibration device 130 of an optional decision device 133.
- the decision device 133 may perform edge detection in a digital image to capture, for example, contours of the illuminated object with the material surface.
- the decision means 133 may determine the spectral characteristic of the light responsive to the calibration light or
- Illuminating light is emitted from the fabric surface 103 and detected, assign target color values, which can not define the spectral characteristic of the measuring light, but also the spectral characteristics of the illumination light to be used. In this way, the illumination device 101 can be regulated to produce a desired illumination light.
- the processor device 1 1 1 comprises a control unit 137, for example an LED control unit, which controls the driver 1 19 in accordance with the desired color values of a desired illumination signal to generate a lighting signal.
- the control unit 137 may be formed, associated with the respective colors
- control device 131 may be provided to track the lighting elements 1 1 15 at a deviation between the desired illumination signal and an actual illumination signal, so that, for example, a difference between the desired illumination signal and the actual illumination signal, in particular a spectral difference, reduced can be.
- the processor device 1 1 1 may be configured to receive from the sensor 121 a measurement signal representing the actual illumination signal.
- the sensor 121 may be an optical sensor which converts visible light into an analog or a digital measurement signal.
- the processor device 1 1 1 may include an interface 139 for receiving a measurement signal from the sensor 121, which may be digital and embodied, for example, as an I 2 C, SPI, USB or similar interface.
- the interface 139 may include, for example, an analog-to-digital converter and / or an I2C, SBI or USB interface.
- the interface 139 is followed by an optional signal conditioning 141, which in the functionality of the
- Signal processing 129 of the control unit 125 may have.
- the signal processing 129 can, for example, perform signal smoothing, for example as a function of a frequency of the measured light.
- the signal conditioning device 141 is followed by an optional calibration device 143, which performs a correction of the processed signal data in color values.
- the calibration device 143 may have the functionality of
- the calibration device 143 is
- control device 131 in particular provided to feed an actual color value of the control device 131, which characterizes the spectral characteristic of the actual illumination signal.
- the control device 131 is designed, for example, to determine a deviation between the actual color value and the desired color value and to output a control variable for the control unit 137 on this basis in order to drive the driver 1 19 for driving the
- control unit 137 the interface 139, the signal conditioning device 141, the calibration device 143 and the
- Control device 131 may be realized by a microcontroller.
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)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012110429.8A DE102012110429B4 (de) | 2012-10-31 | 2012-10-31 | Vorrichtung und Verfahren zum Beleuchten einer Stoffoberfläche |
PCT/EP2013/072111 WO2014067819A1 (de) | 2012-10-31 | 2013-10-23 | Vorrichtung zum beleuchten einer stoffoberfläche |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2914955A1 true EP2914955A1 (de) | 2015-09-09 |
Family
ID=49485717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13782692.1A Withdrawn EP2914955A1 (de) | 2012-10-31 | 2013-10-23 | Vorrichtung zum beleuchten einer stoffoberfläche |
Country Status (8)
Country | Link |
---|---|
US (1) | US10473523B2 (ko) |
EP (1) | EP2914955A1 (ko) |
JP (1) | JP6033968B2 (ko) |
KR (1) | KR101692653B1 (ko) |
CN (1) | CN104769421B (ko) |
DE (1) | DE102012110429B4 (ko) |
RU (1) | RU2015110477A (ko) |
WO (1) | WO2014067819A1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015115474A1 (de) * | 2015-09-14 | 2017-03-16 | Deutsche Telekom Ag | Verfahren zum Kalibrieren einer lichtintransparenten Anzeige |
KR102599809B1 (ko) * | 2023-05-17 | 2023-11-10 | (주)동아엘텍 | 외관 검사 시스템에서의 디스플레이를 이용한 패턴 조명 시스템 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080093539A1 (en) * | 2005-01-31 | 2008-04-24 | Chemimage Corporation | Apparatus and method for chemical imaging of a biological sample |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05332939A (ja) * | 1992-06-01 | 1993-12-17 | Matsushita Electric Ind Co Ltd | 視覚認識装置 |
JPH06174448A (ja) * | 1992-12-09 | 1994-06-24 | Seiko Epson Corp | 液晶パネルの位置決め装置及びパターン検査装置 |
JPH08219716A (ja) * | 1994-12-13 | 1996-08-30 | Toshiba Corp | 入力画像コントラスト処理装置およびこれを用いた装置 |
US6501542B2 (en) * | 1998-06-30 | 2002-12-31 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of an object |
JPH11237344A (ja) * | 1998-02-19 | 1999-08-31 | Hitachi Ltd | 欠陥検査方法およびその装置 |
JP4270604B2 (ja) * | 1998-07-14 | 2009-06-03 | オリンパス株式会社 | 画像入力装置 |
US7151609B2 (en) * | 2000-07-06 | 2006-12-19 | Filmetrics, Inc. | Determining wafer orientation in spectral imaging |
WO2003062799A2 (en) * | 2002-01-18 | 2003-07-31 | Newton Laboratories, Inc. | Spectroscopic diagnostic methods and system |
DE10241472B4 (de) * | 2002-09-04 | 2019-04-11 | Carl Zeiss Microscopy Gmbh | Verfahren und Anordnung zur einstellbaren Veränderung von Beleuchtungslicht und/oder Probenlicht bezüglich seiner spektralen Zusammensetzung und/oder Intensität |
US7151597B2 (en) * | 2003-12-05 | 2006-12-19 | Agilent Technologie, Inc | Optical wavelength standard and optical wavelength calibration system and method |
JPWO2005064322A1 (ja) * | 2003-12-26 | 2007-07-19 | 株式会社ニコン | 欠陥検査装置および欠陥検査方法 |
US20060000963A1 (en) | 2004-06-30 | 2006-01-05 | Ng Kee Y | Light source calibration |
US7060955B1 (en) * | 2005-01-31 | 2006-06-13 | Chemimage Corporation | Apparatus and method for defining illumination parameters of a sample |
BRPI0608982A2 (pt) * | 2005-05-11 | 2010-01-12 | Olympus Medical Systems Corp | dispositivo de processamento de sinal para aparelho observação biológica |
US7433034B1 (en) * | 2005-06-17 | 2008-10-07 | Nanometrics Incorporated | Darkfield defect inspection with spectral contents |
KR101311184B1 (ko) * | 2005-08-15 | 2013-09-26 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 산란 측정기를 위한 듀얼 빔 장치 |
CN101371114B (zh) * | 2006-01-19 | 2012-11-14 | 皇家飞利浦电子股份有限公司 | 颜色受控的照明设备 |
CN101983329A (zh) * | 2008-04-01 | 2011-03-02 | 国立大学法人丰桥技术科学大学 | 辨别过滤装置、对象辨别方法、以及辨别过滤装置的过滤器的设计方法 |
WO2009132360A2 (en) | 2008-04-25 | 2009-10-29 | Duke University | Systems and methods for performing optical spectroscopy using a self-calibrating fiber optic probe |
JP5332939B2 (ja) | 2009-06-23 | 2013-11-06 | 岩崎電気株式会社 | セラミックメタルハライドランプ |
US9091637B2 (en) * | 2009-12-04 | 2015-07-28 | Duke University | Smart fiber optic sensors systems and methods for quantitative optical spectroscopy |
JP2011174764A (ja) * | 2010-02-23 | 2011-09-08 | Nikon Corp | 検査方法および検査装置 |
JP5060580B2 (ja) * | 2010-04-09 | 2012-10-31 | トヨタ自動車株式会社 | スペクトル測定装置 |
WO2013116760A1 (en) * | 2012-02-03 | 2013-08-08 | The Trustees Of Columbia University In The City Of New York | Optical analysis of emissions from stimulated liquids |
US9274047B2 (en) * | 2013-05-24 | 2016-03-01 | Massachusetts Institute Of Technology | Methods and apparatus for imaging of occluded objects |
US10203246B2 (en) * | 2015-11-20 | 2019-02-12 | Verifood, Ltd. | Systems and methods for calibration of a handheld spectrometer |
-
2012
- 2012-10-31 DE DE102012110429.8A patent/DE102012110429B4/de not_active Expired - Fee Related
-
2013
- 2013-10-23 EP EP13782692.1A patent/EP2914955A1/de not_active Withdrawn
- 2013-10-23 WO PCT/EP2013/072111 patent/WO2014067819A1/de active Application Filing
- 2013-10-23 US US14/438,183 patent/US10473523B2/en not_active Expired - Fee Related
- 2013-10-23 RU RU2015110477A patent/RU2015110477A/ru not_active Application Discontinuation
- 2013-10-23 KR KR1020157011964A patent/KR101692653B1/ko active IP Right Grant
- 2013-10-23 JP JP2015538421A patent/JP6033968B2/ja not_active Expired - Fee Related
- 2013-10-23 CN CN201380055603.5A patent/CN104769421B/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080093539A1 (en) * | 2005-01-31 | 2008-04-24 | Chemimage Corporation | Apparatus and method for chemical imaging of a biological sample |
Also Published As
Publication number | Publication date |
---|---|
JP6033968B2 (ja) | 2016-11-30 |
US20150285681A1 (en) | 2015-10-08 |
WO2014067819A1 (de) | 2014-05-08 |
KR101692653B1 (ko) | 2017-01-03 |
CN104769421B (zh) | 2018-06-08 |
RU2015110477A (ru) | 2016-12-20 |
DE102012110429B4 (de) | 2014-07-10 |
DE102012110429A1 (de) | 2014-04-30 |
JP2015536455A (ja) | 2015-12-21 |
KR20150074026A (ko) | 2015-07-01 |
CN104769421A (zh) | 2015-07-08 |
US10473523B2 (en) | 2019-11-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1775565B1 (de) | Verfahren zur Farbmessung von gedruckten Proben mit Aufhellern | |
DE19617009C2 (de) | Photoelektrische Meßeinrichtung | |
EP2270451B1 (de) | Farbmessgerät | |
DE102014103640A1 (de) | Vorrichtung und Verfahren zum Untersuchen von Oberflächeneigenschaften | |
DE102008049908A1 (de) | Verfahren zur Erzeugung eines Detektionssignals und Erfassungseinrichtung | |
WO2014067819A1 (de) | Vorrichtung zum beleuchten einer stoffoberfläche | |
DE102008055949B4 (de) | Optische Erfassungseinheit für Objekte | |
EP3244699B1 (de) | Leuchtmittel mit regelbarer bestrahlungsstärke | |
EP3078950B1 (de) | Farbmessverfahren und farbmessgerät | |
EP3479655B1 (de) | Messanordnung zur erfassung von alterungsprozessen einzelner leuchtdioden | |
WO1996013719A1 (de) | Automatische fehlererkennungsanlage für rissprüfung | |
DE102005031104A1 (de) | Automatisches Mikroskop und Verfahren zur farbgetreuen Bildwiedergabe bei automatischen Mikroskopen | |
DE10152851A1 (de) | Bildverarbeitungssystem | |
DE102018202949A1 (de) | Verfahren und Vorrichtung zum Betreiben eines Spektrometers und Spektrometer | |
DE102020104959A1 (de) | Verfahren und Vorrichtung zur automatisierten Detektion einer Beeinträchtigung einer Lichtabstrahlung bei einer Beleuchtungsvorrichtung für ein Fahrzeug | |
DE102014208206A1 (de) | Verfahren zum Steuern, Parametrisieren oder Kalibrieren einer zur Beleuchtungssteuerung genutzten Sensoreinheit | |
DE10106284B4 (de) | Verfahren und Vorrichtung zur Prüfung der Farbabmusterung | |
DE102013106554A1 (de) | Kontaktlos arbeitende Dentalvorrichtung | |
EP3279875A1 (de) | Verschmutzungsdetektor, münzsortiermaschine und verfahren zur verschmutzungserkennung von münzen | |
WO2018033251A2 (de) | Tageslicht-handleuchte zur prüfung von lackierten oberflächen, insbesondere im rahmen von lackreparaturarbeiten an kraftfahrzeugen | |
WO2017182479A1 (de) | Vorrichtung und verfahren zum überwachen von farblichen sicherheitsmerkmalen | |
DE112008002282T5 (de) | Verfahren zur Inspektion von Leiterplatten durch Multispektralanalyse | |
DE102018120006A1 (de) | Verfahren und Vorrichtung zur Überwachung eines Spektralradiometers | |
DE102022115138A1 (de) | Vorrichtung und Verfahren zur Detektion von Verschmutzungen auf einem Förderband | |
DE102018121534A1 (de) | Optisches Messsystem und Verfahren umfassend ein solches |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20150325 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20180131 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20210501 |