EP2245441A1 - Microspectromètre - Google Patents

Microspectromètre

Info

Publication number
EP2245441A1
EP2245441A1 EP09714805A EP09714805A EP2245441A1 EP 2245441 A1 EP2245441 A1 EP 2245441A1 EP 09714805 A EP09714805 A EP 09714805A EP 09714805 A EP09714805 A EP 09714805A EP 2245441 A1 EP2245441 A1 EP 2245441A1
Authority
EP
European Patent Office
Prior art keywords
fluid channel
optical
microspectrometer
housing
microspectrometer according
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Withdrawn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
EP09714805A
Other languages
German (de)
English (en)
Inventor
Dominik Rabus
Michael Winkler
Christian Oberndorfer
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.)
Buerkert Werke GmbH and Co KG
Original Assignee
Buerkert Werke GmbH and Co KG
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 Buerkert Werke GmbH and Co KG filed Critical Buerkert Werke GmbH and Co KG
Publication of EP2245441A1 publication Critical patent/EP2245441A1/fr
Withdrawn legal-status Critical Current

Links

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
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • 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
    • 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
    • G01J3/021—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using plane or convex mirrors, parallel phase plates, or particular reflectors
    • 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
    • G01J3/0237—Adjustable, e.g. focussing
    • 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
    • G01J3/0256—Compact construction
    • 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
    • G01J3/0256—Compact construction
    • G01J3/0259—Monolithic
    • 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
    • G01J3/0291—Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements
    • 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
    • G01J3/04—Slit arrangements slit adjustment
    • 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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/532—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke with measurement of scattering and transmission
    • 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
    • G01N2201/062—LED's
    • G01N2201/0628—Organic LED [OLED]

Definitions

  • the invention relates to a microspectrometer.
  • Microspectrometers are known. Typically, components such as optical grating, mirrors, evaluation electronics and optical fibers are arranged in a housing or on a base plate, which couple the light to be analyzed into the spectrometer. Outside the microspectrometer is a light source and the sample to be analyzed, which is irradiated by the light of the external light source. The light, which is separated from the optical grating into its spectral components, passes via optical fibers to a plurality of photodetectors.
  • the invention provides a microspectrometer which can be made extremely compact and without external components and has only a fluidic interface and electrical connections to the outside.
  • the advantage of the invention set out in the appended claims is that it permits the continuous spectroscopy of an analyte, e.g. in the monitoring of drinking water quality is of great importance.
  • optical grating is rotatably arranged, so that instead of a detector line, a single photodetector can be used.
  • the housing of the microspectrometer as a rigid molded body by injection molding from at least partially transparent To manufacture plastic.
  • the fluid channel is then passed across a solid portion of the molded article from one side surface to the opposite surface.
  • the required optical grating is molded during injection molding in a surface of the molding. But it is also possible to use a grid after injection into a recess of the housing.
  • the light source may e.g. be an LED and integrated as Einlegteil in the molding.
  • the light source could also be inserted into a recess of the plastic part and then attached, for example, by gluing.
  • OLED it is also possible to use OLED or use other known methods such as laser technology to generate the light source.
  • a further light source could be arranged below / above the fluid channel.
  • the scattered light would then be radiated at an angle of 90 ° on the same path as the test section described.
  • the scattered light falls on the grid, is spectrally decomposed and reaches the evaluation electronics.
  • the fluid channel is transversely irradiated by a separate light source, and the scattered light occurring in this case is collected directly (without spectral decomposition) by means of another photodiode.
  • the scattered light intensity is measured and evaluated separately.
  • 1 is a schematic plan view of an embodiment of the microspectrometer with the housing open; 2 shows a plan view of a second exemplary embodiment of the microspectrometer with the housing open in a schematic illustration;
  • FIG. 5 shows a rigid molded body, which is suitable as a housing.
  • Fig. 6 shows an embodiment using the housing of Fig. 5;
  • FIG. 7 shows a further embodiment using the housing according to Fig. 5; and
  • FIG. 8 shows a further embodiment using a rigid shaped body as the housing.
  • a light source 2 and an optical grating 6 are arranged in a housing 1 on opposite sides.
  • the housing 1 is penetrated by a fluid channel 3.
  • the channel 3 can either be filled and sealed with medium to be analyzed, or this medium can flow continuously through the channel.
  • the fluid channel 3 can be connected to lines (not shown in FIG. 1) in which the medium is transported to and from the spectrometer.
  • the fluid channel 3 is arranged in the housing such that it is located on the optical measuring path between the light source 2 and the grating 6.
  • the fluid channel 3 must be made of translucent material.
  • Fluid channel 3 can be either completely or partially provided in the injection mold for the housing 1 of the microspectrometer, or this or window-like parts thereof are subsequently made of transparent material such
  • a diaphragm 4 wherein the opening is placed so that light from the light source 2 on the grid 6 falls.
  • the diameter of the aperture 4 is ideally adjustable.
  • a mirror 5 is arranged so that light reflected by the grating 6 is incident on it.
  • the mirror 5 may for example be part of Aperture 4, arranged so that it faces the grating 6 and not the light source 2.
  • the mirror 5 directs incident light on to an evaluation unit (not shown in FIG. 1).
  • This evaluation unit can e.g. a photodetector like an organic photodiode array.
  • the beam path 7 of the optical measuring path is shown.
  • Light from the light source 2 ideally passes through the fluid channel 3 at an angle of incidence of 90 °, passes through the diaphragm 4 to the grating 6, which spectrally splits the light and reflects it onto the mirror 5, which redirects the light to the evaluation unit.
  • the evaluation unit can be arranged inside the microspectrometer or can also be located outside.
  • a second light source 2a e.g. LED arranged, which also sends light across the fluid channel. From the main beam at an angle of 90 ° sloping stray light (dashed line) passes according to beam path 8, for. for the purpose of turbidity measurement by the diaphragm 4 on the optical grating 6 and the evaluation unit.
  • the light source 2 is not activated simultaneously with the light source 2a.
  • the two light sources 2 and 2a are activated alternately, the turbidity and the concentration of constituents in liquids can thus be determined in succession with the same device.
  • the evaluation of the scattered light with spectral decomposition takes place through the optical grating 6.
  • FIG. 4 shows the sectional view of a further exemplary embodiment in which the evaluation of the scattered light takes place without spectral decomposition.
  • the arrangement of the individual components is identical to that of the first embodiment, except that in addition below the fluid channel 3 is a photodiode 2b.
  • the photodiode 2b detects scattered light radiated at an angle of 90 ° from the main beam emitted from the light source 2 and which transmits the light Transmitted fluid channel 3 transversely.
  • the beam path of the scattered light is shown in dashed lines according to arrow 9.
  • the main beam of the light source 2 can be optically decomposed and evaluated by means of grids and the scattered light occurring thereby can be collected directly by means of the photodiode 2b and the scattered light intensity can be measured.
  • the rigid shaped body 20 which is suitable as a housing of the microspectrometer and is shown in FIG. 5, is a flat cuboid with a solid block 20a, which merges with a step 22 into a flat region 20b in which a rectangular recess 24 is formed. This recess 24 can be closed by a cover 26, which is flush with the block 20a.
  • the molded body 20 is produced by injection molding of a particularly transparent plastic, such as polymethyl acrylate.
  • a channel 28 is recessed, which is guided from one side surface up to the opposite side surface. Furthermore, a cylindrical recess 30 is introduced perpendicular to the channel 28 in the block 20 a.
  • a light source such as an LED 32 is inserted in the recess 30.
  • the channel 28 is provided at its ends with fluidic fittings 34.
  • the recess 24 accommodates all further components of the microspectrometer: the diaphragm 36, the optical grating 38 and the photodetector row 40 with evaluation electronics 42.
  • further optical and / or electronic components can be arranged in the recess 24.
  • a plurality of light sources for different spectral ranges can be arranged in the block 20a.
  • the micro-spectrometer has only a fluidic interface in the form of the connecting pieces 34 and electrical connections that can be realized by connectors. Since all optical components are in a rigid spatial relationship, no adjustments are required to make measurements.
  • Fig. 7 differs from that of Fig. 6 by the use of a rotatably mounted optical grating 38a with rotary drive 44 and the use of a single photodiode 40a as a detector.
  • the rotary drive 44 is activated by the evaluation electronics 42a in such a way. Experts that the photodiode 40a successively detects all the spectral components of the light reflected from the grid.
  • the shaped body 20b forms a uniform flat cuboid made of transparent plastic.
  • a recess 46 which is introduced into the molded body 20b parallel to the channel 28b, accommodates the photodetector row 40b and the evaluation electronics 42b.
  • the optical grating 38b is formed in the outer surface of the molded body 20b opposite to the light source 32b and provided with a reflective coating, e.g. is applied by vapor deposition.
  • the grid 38b is covered with a protective layer.

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Measuring Cells (AREA)

Abstract

Le microspectromètre compact pour milieux fluides comporte, dans un boîtier (20b), selon une affectation spatiale fixe, une source de lumière, un canal pour fluide (28b), une grille optique réfléchissante (38b) et un détecteur (40b). La trajectoire de mesure optique partant de la source de lumière traverse le canal de fluide et rejoint la grille optique. Les composants spectraux de la lumière réfléchie par la grille optique arrivent sur le détecteur.
EP09714805A 2008-02-26 2009-02-25 Microspectromètre Withdrawn EP2245441A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202008002683 2008-02-26
DE202008003977U DE202008003977U1 (de) 2008-02-26 2008-03-20 Mikrospektrometer
PCT/EP2009/001339 WO2009106313A1 (fr) 2008-02-26 2009-02-25 Microspectromètre

Publications (1)

Publication Number Publication Date
EP2245441A1 true EP2245441A1 (fr) 2010-11-03

Family

ID=40822428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09714805A Withdrawn EP2245441A1 (fr) 2008-02-26 2009-02-25 Microspectromètre

Country Status (5)

Country Link
US (1) US8885160B2 (fr)
EP (1) EP2245441A1 (fr)
JP (1) JP2011513717A (fr)
DE (1) DE202008003977U1 (fr)
WO (1) WO2009106313A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012021917A (ja) * 2010-07-15 2012-02-02 Kyokko Denki Kk 流体検知センサ及び分光分析装置
DE102015100395B4 (de) 2014-02-03 2020-06-18 Bürkert Werke GmbH Spektrometer und Fluid-Analysesystem
US9835816B2 (en) * 2015-06-10 2017-12-05 Telect, Inc. Fiber blocking kits
US9945790B2 (en) * 2015-08-05 2018-04-17 Viavi Solutions Inc. In-situ spectral process monitoring
DE102016222253A1 (de) * 2016-11-14 2018-05-17 BSH Hausgeräte GmbH Spektrometer, System enthaltend ein Spektrometer und ein Haushaltsgerät und Verfahren zu deren Betrieb
PL3536205T3 (pl) * 2018-03-06 2021-12-06 Vorwerk & Co. Interholding Gmbh Urządzenie do przygotowywania potraw
KR20230011281A (ko) 2020-05-15 2023-01-20 가부시키가이샤 호리바 어드밴스트 테크노 광학 측정 장치 및 수질 분석 시스템
DE102020120199A1 (de) 2020-07-30 2022-02-03 Bürkert Werke GmbH & Co. KG Verfahren zur Erfassung der Konzentration von organischen Partikeln in der Luft sowie Sensor hierfür
US11841270B1 (en) * 2022-05-25 2023-12-12 Visera Technologies Company Ltd. Spectrometer

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297431A1 (fr) 1975-01-07 1976-08-06 Instruments Sa Modules optiques, notamment pour constituer des appareils d'analyse spectrale
JPS5946332B2 (ja) 1976-03-31 1984-11-12 株式会社島津製作所 分光測定装置
GB2165061A (en) 1984-09-26 1986-04-03 Int Standard Electric Corp Optical coupler
JPS6311822A (ja) * 1986-07-02 1988-01-19 Hitachi Ltd 回折格子
JPH01308943A (ja) 1988-06-07 1989-12-13 Fuji Electric Co Ltd 微粒子測定装置
ES2035985T3 (es) 1989-05-20 1993-05-01 Hewlett-Packard Gmbh Metodo de funcionamiento de un espectometro de fotodiodos y espectrometro de fotodiodos correspondiente.
US5037201A (en) 1990-03-30 1991-08-06 Xerox Corporation Spectral resolving and sensing apparatus
DE4122925C2 (de) 1991-07-11 1994-09-22 Fraunhofer Ges Forschung Optisches Spektrometer
US5424826A (en) * 1993-07-30 1995-06-13 Control Development, Inc. Wideband optical micro-spectrometer system
DE4434814A1 (de) * 1994-09-29 1996-04-04 Microparts Gmbh Infrarotspektrometrischer Sensor für Gase
US5856870A (en) * 1997-04-08 1999-01-05 Foster-Miller, Inc. Spectroanalytical system
DE19717014A1 (de) * 1997-04-23 1998-10-29 Inst Mikrotechnik Mainz Gmbh Verfahren und Form zur Herstellung miniaturisierter Formenkörper
JP4032483B2 (ja) 1998-02-26 2008-01-16 株式会社日立製作所 分光測定装置
US6075252A (en) 1998-11-16 2000-06-13 Innovative Lasers Corporation Contaminant identification and concentration determination by monitoring the temporal characteristics of an intracavity laser
JP2000161654A (ja) 1998-11-20 2000-06-16 Nippon Furnace Kogyo Kaisha Ltd 蓄熱型バーナによる燃焼装置および燃焼方法
JP4018063B2 (ja) 2000-10-12 2007-12-05 アムニス コーポレイション 画像化システム及びその方法
US7605370B2 (en) * 2001-08-31 2009-10-20 Ric Investments, Llc Microspectrometer gas analyzer
IL146404A0 (en) * 2001-11-08 2002-07-25 E Afikin Computerized Dairy Ma Spectroscopic fluid analyzer
JP2003161654A (ja) * 2001-11-26 2003-06-06 Ando Electric Co Ltd 光スペクトラムアナライザ及び光スペクトル測定方法
JP2003279483A (ja) 2002-03-26 2003-10-02 Kubota Corp 分光分析装置
DE10305093A1 (de) * 2003-02-07 2004-08-19 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Vorrichtung zur Bestimmung und Überwachung von Verunreinigungszuständen unterschiedlicher Flüssigkeiten
CN100437020C (zh) * 2003-07-18 2008-11-26 凯米映像公司 多波长成像光谱仪的方法和装置
DE10360563A1 (de) * 2003-12-22 2005-07-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Vorrichtung zur Bestimmung des Verunreinigungszustands von Flüssigkeiten
US7324195B2 (en) * 2004-01-08 2008-01-29 Valorbec Societe Em Commandite Planar waveguide based grating device and spectrometer for species-specific wavelength detection
DE102004030029B3 (de) * 2004-06-22 2005-12-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Transmissionsmessverfahren und deren Verwendung
JP4473665B2 (ja) * 2004-07-16 2010-06-02 浜松ホトニクス株式会社 分光器
US7518380B2 (en) 2005-05-17 2009-04-14 Honeywell International Inc. Chemical impedance detectors for fluid analyzers
DE102006035581B3 (de) 2006-07-29 2008-02-07 INSTITUT FüR MIKROTECHNIK MAINZ GMBH Optische Messzelle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009106313A1 *

Also Published As

Publication number Publication date
US8885160B2 (en) 2014-11-11
WO2009106313A1 (fr) 2009-09-03
JP2011513717A (ja) 2011-04-28
US20110080583A1 (en) 2011-04-07
DE202008003977U1 (de) 2009-07-02

Similar Documents

Publication Publication Date Title
EP2245441A1 (fr) Microspectromètre
EP0793090B1 (fr) Système de mesure avec un élément de support transparent pour le faisceau d'exitation et de détection
DE69709921T2 (de) Optische detektionsvorrichtung für chemische analysen an kleinvolumigen proben
EP1068511B1 (fr) Dispositif pour la spectroscopie par resonance des plasmons de surface
DE2812872C2 (de) Spektralphotometer
EP0834066B1 (fr) Procede et dispositif permettant de mettre en evidence des reactions et des interactions d'ordre physique, chimique, biologique ou biochimique
EP1472521A1 (fr) Procede pour l'analyse de liquides et dispositif correspondant
DE68922181T2 (de) Optisches Transmissionsspektrometer.
DE102011050969A1 (de) Vorrichtung zur referenzierten Messung von reflektiertem Licht und Verfahren zum Kalibrieren einer solchen Vorrichtung
AT510631B1 (de) Spektrometer
EP3084397B1 (fr) Spectromètre infrarouge atr
DE102011075530A9 (de) Fotometer zur In-situ-Messung in Fluiden
DE19509157C2 (de) Optisches System mit großen Meßbereichen
EP2717044A1 (fr) Procédé de détection d'analytes
DE2600371C3 (de) Optische Anordnung
DE102007058563A1 (de) Spektrometermesskopf zur Analyse von Kenngrößen flüssiger, pastöser oder fester Substanzen
EP2619551B1 (fr) Capteur destiné à la surveillance d'un milieu
DE102012108620A1 (de) Verfahren zum Bestimmen der Weglänge einer Probe und Validierung der damit erhaltenen Messung
DE102012018015B3 (de) Messmodul zur remissions-photometrischen Analyse und Verfahren zu dessen Herstellung
EP3172542A1 (fr) Ensemble de détection avec résolution de position et de longueur d'onde d'un rayonnement lumineux qui est émis par au moins une oled ou une led
DE10149879A1 (de) Vorrichtung zur spektralphotometrischen Analyse von flüssigen Medien
DE10324973B4 (de) Anordnung und Verfahren zur optischen Detektion von in Proben enthaltenen chemischen, biochemischen Molekülen und/oder Partikeln
DE19920184C2 (de) Verfahren für die gleichzeitige Erfassung von diffuser und specularer Reflexion von Proben, insbesondere undurchsichtiger Proben, sowie Reflektanz-Meßsonde
EP2427751B1 (fr) Système détecteur optique modulaire pour des milieux fluides
DE102004015906B4 (de) Mikrofluidische Vorrichtung für die optische Analyse

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: 20100727

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): 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 SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

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: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160901