EP3488226A1 - Atr-spektrometer - Google Patents
Atr-spektrometerInfo
- Publication number
- EP3488226A1 EP3488226A1 EP17751265.4A EP17751265A EP3488226A1 EP 3488226 A1 EP3488226 A1 EP 3488226A1 EP 17751265 A EP17751265 A EP 17751265A EP 3488226 A1 EP3488226 A1 EP 3488226A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- atr
- radiation
- frusto
- emitter
- crystal
- 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- Withdrawn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
- 239000013078 crystal Substances 0.000 claims abstract description 84
- 230000005855 radiation Effects 0.000 claims abstract description 42
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 23
- 238000009826 distribution Methods 0.000 claims description 25
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 238000001228 spectrum Methods 0.000 claims description 15
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 claims description 3
- -1 AMTIR Substances 0.000 claims description 3
- 239000005083 Zinc sulfide Substances 0.000 claims description 3
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 claims description 3
- 229910001632 barium fluoride Inorganic materials 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- PGAPATLGJSQQBU-UHFFFAOYSA-M thallium(i) bromide Chemical compound [Tl]Br PGAPATLGJSQQBU-UHFFFAOYSA-M 0.000 claims description 3
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 3
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 3
- 238000003491 array Methods 0.000 claims 1
- 238000005102 attenuated total reflection Methods 0.000 description 94
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000006735 deficit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- LKJPSUCKSLORMF-UHFFFAOYSA-N Monolinuron Chemical compound CON(C)C(=O)NC1=CC=C(Cl)C=C1 LKJPSUCKSLORMF-UHFFFAOYSA-N 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 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
- G01N21/55—Specular reflectivity
- G01N21/552—Attenuated total reflection
-
- 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
- G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
- G01J3/36—Investigating two or more bands of a spectrum by separate 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
- G01N21/25—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
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- 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
- G01J2003/102—Plural sources
-
- 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
- G01N2201/063—Illuminating optical parts
- G01N2201/0635—Structured illumination, e.g. with grating
-
- 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
- G01N2201/063—Illuminating optical parts
- G01N2201/0636—Reflectors
-
- 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
- G01N2201/063—Illuminating optical parts
- G01N2201/0638—Refractive parts
Definitions
- the invention relates to an ATR spectrometer.
- An attenuated total reflection (ATR) spectrometer has a rectangular ATR crystal which is brought into contact with the sample to measure a spectrum of a sample. To measure the spectrum, light is coupled into one end of the ATR crystal. The light spreads under multiple total reflection to another end of the ATR crisis case and exits from there again. Due to the
- Total reflection forms evanescent waves in the sample, which interact with the sample. This interaction leads to a characteristic of the sample spectrum of the exiting light.
- the disadvantage is that the ATR crystal is expensive to manufacture. Also the production of a holder for
- Attaching the ATR crystal in the ATR spectrometer is costly.
- the ATR crystal has only a small
- Einkoppel for coupling the light into the ATR crystal and a small coupling pool for coupling out the light from the ATR crystal, so that only a small number of the
- Light sources and the detectors can be provided.
- the dimensions of the detectors are in the
- Intensity distributions conventionally have a steep gradient Gaussian shape.
- this is disadvantageous because the amount of light detectable by the detectors and thus also the signal-to-noise ratio of the measured spectra strongly depends on the positioning of the detectors.
- the calibration depends on the amount of light incident on the detectors.
- the accuracy of the calibration is also highly dependent on the positioning of the detectors.
- the object of the invention is therefore to provide an ATR spectrometer with which the aforementioned problems are solved.
- the ATR spectrometer according to the invention comprises an ATR crystal which has a frustoconical section and two plane,
- Emitter which is arranged electromagnetic radiation via one of the surfaces and substantially perpendicular to the one surface on the lateral surface of the frusto-conical
- the lateral surface is adapted to reflect the electromagnetic radiation to the one surface, so that the radiation is propagated under multiple reflection at the two surfaces in the ATR crystal and then by means of a reflection on the lateral surface of the frustoconical portion of the ATR -Crystal
- a detector which is adapted to detect the coupled-out electromagnetic radiation, wherein the one surface has a coupling-in area for coupling in the radiation, which is the projection of a in
- the emitter has a radiation-emitting surface, the projection of which on the
- the emitter optionally has existing
- Beam shaping elements such as a lens and / or a concave mirror, on and emitting the radiation
- the swept angle is less than 1.5 °, the radiation exiting the ⁇ TR crystal will form intensity maxima with small dimensions and steep gradients.
- a positioning of the detectors in the area of the intensity maxima disadvantageously leads to a strong
- the spectra can be measured with a higher spectral resolution and / or the spectra can be measured in a wider wavelength range than is the case with the conventional rectangular ATR crystal.
- emissive surface on the coupling region sweeps the win of at least 8 °. This allows a particularly wide and smooth plateau can be achieved.
- the emitter is set up one
- Illuminate area of the base surface of the frusto-conical portion, wherein the area in the circumferential direction of the ATR crystal has an extension which is longer than the extension of the radiation-emitting surface of the emitter in the handheldsriehtung is. It was found that with a
- Such illumination of the base creates a plateau with a particularly uniform intensity. It is preferred that the emitter is set up
- the plateau is particularly smooth due to the large divergence angle.
- spreads is preferably at least 2.5 cm, in particular at least 4 cm. This makes a particularly wide and smooth plateau available.
- the plateau also has a particularly long extent in the radial direction of the ATR crystal.
- the width of the coupling portion in the radial direction of the ATR crystal is from 0.25 mm to 5 mm.
- the distance from the emitter to the lateral surface is
- the lateral surface and the base of the frusto-conical portion include an angle of 15 ° to 60 °.
- the normals of the two surfaces are preferably parallel to the cone axis of the frusto-conical portion. This geometry can be advantageous simply by the
- the ATR crystal has a cylindrical portion whose circular areas are the same
- Section, and the base of the frusto-conical section coincides with one of the circular surfaces of the cylindrical section, so that the other of the circular surfaces of the cylindrical section and the top surface of the cylindrical section
- Infrared light is set up and the detector is that
- the ATR crystal preferably has zinc sulfide, zinc selenide, germanium, calcium fluoride,
- the ATR spectrometer preferably has a wavelength-selective element which is arranged such that the decoupled electromagnetic radiation before its impact on the
- the wavelength-selective element is a prism, an optical grating, at least one bandpass filter and / or linearly variable filter, in particular a linearly variable bandpass filter and / or a linearly variable filter
- the ATR spectrometer preferably has a plurality
- Wavelength-selective element which are arranged adjacent to each other in the circumferential direction of the ATR crystal, the
- the wavelength-selective elements are particularly adapted to select different wavelengths.
- the emitters and the detectors are particularly adapted to select different wavelengths.
- alternating arranging is a
- Heat input from the emitters into the ATR crystal is largely symmetrical, which can reduce mechanical stresses in the ATR crystal.
- mechanical stresses occur in the ATR crystal, they can lead to asymmetries in the ATR crystal.
- the asymmetries can lead to an impairment of the measured spectra.
- the detector comprises a plurality of sensors arranged to defect the radiation emitted by a single emitter.
- the detector comprises a plurality of sensors arranged to defect the radiation emitted by a single emitter.
- the photoactive surface of the detector is preferably in
- Circumferring the ATR crystal has an extension which is shorter than one extending in the totallysriehtung
- the measured spectra are advantageously largely independent of possibly occurring thermal expansions in the ATR spectrometer.
- FIG. 1 shows a side view of an ATR spectrometer according to the invention
- FIG. 2 is a plan view of the ATR spectrometer
- FIG. 3 shows a two-dimensional intensity distribution of electromagnetic radiation emerging from an ATR crystal of an ATR spectrometer with a short emitter
- FIG. 4 shows a two-dimensional intensity distribution of electromagnetic radiation emerging from an ATR crystal of the ATR spectrometer according to the invention
- FIGS. 1 and 2 are plan views of a preferred embodiment of the ATR spectrometer according to the invention.
- an ATR spectrometer 17 includes an ATR crystal 1, an emitter 11, a detector 12 and a wavelength-selective element 18.
- the ATR crystal 1 has a cylindrical portion 2 and a circular frustoconical portion 3 with a
- the two circular surfaces 4, 5 of the cylindrical portion 2 have the same diameter as the base surface 15 of the circular frustoconical portion 3.
- Section 2 coincides with the base 15 of the
- Section 2 and the top surface 14 of the circular frustoconical portion 3 form two parallel and exposed surfaces.
- the normal of the two surfaces are parallel to the cone axis 20 of the circular frustoconical portion 3.
- Base area 15 for example, at least 2, 5 cm, in particular at least 4 cm.
- the ATR crystal 1 is particularly transparent to
- the ATR crystal 1 may include zinc sulfide, zinc selenide, germanium, calcium fluoride, barium fluoride, thallium bromide iodide, silicon, AMTIR, sapphire and / or diamond.
- the ATR crystal 1 may consist of one of the aforementioned substances.
- the emitter 11 is set up the electromagnetic
- Radiation 13 in particular the infrared light, via one of the surfaces and substantially perpendicular to the one
- the lateral surface 16 is set up to reflect the electromagnetic radiation 13 onto the one surface, so that the radiation 13 can be propagated under multiple reflection at the two surfaces in the ATR crystal 1. Subsequently, the radiation 13 by means of a reflection on the lateral surface 16 of the frusto-conical portion 3 from the ATR crystal 1 auskoppelbar.
- the one surface has a coupling-in area 6 to
- the emitter 11 has a the
- Radiation 13 emitting surface whose projection on the coupling region 6 from the center 26 of the one surface seen from an angle of at least 1.5 °, in particular of at least 8 ° sweeps.
- the emitter 11 is arranged in a space region 7 which has the shape of a portion of an annular gap extending away from the coupling region 6 away therefrom.
- the space area 7 in FIG. 1 is the one between the two dashed lines
- the emitter 11 can optionally have beam-shaping elements, such as a lens and / or a concave mirror, and the radiation 13
- the emitting surface is the area of the emitter 11 where the radiation 13 exits the emitter 11.
- the emitter 11 is set up to emit the electromagnetic radiation 13 at a divergence angle of 90 ° to substantially 180 °, in particular from 150 ° to substantially 180 °.
- the ring width d of the coupling region 6 covers.
- the emitter 11 may be configured to be an area of
- Space region 7 is arranged region of the emitter 11 in the circumferential direction.
- the detector 12 is set the decoupled
- the detector 12 is set to the infrared light
- the wavelength-selective element 18 is arranged in such a way that the decoupled electromagnetic radiation before its impact on the detector 12 by the
- wavelength-selective element 18 is conductive.
- Wavelength-selective element 18 may be a prism, an optical grating, at least one bandpass filter and / or linearly variable filter, in particular a linearly variable bandpass filter and / or a linearly variable edge filter.
- the sample is contacted with at least one of the two surfaces.
- the material of the ATR crystal should be selected such that the refractive index m of the material is greater than the refractive index o of the sample.
- FIG. 3 shows a two-dimensional intensity distribution 22 of electromagnetic radiation emerging from an ATR crystal 1 of an ATR spectrometer not belonging to the invention.
- FIG. 4 shows a comparable with FIG.
- FIG. 1 and 2 The intensity distributions 22, 23 were determined by means of a simulation using a commercially available simulation software.
- the not belonging to the invention ATR spectrometer differs from the ATR spectrometer according to Figures 1 and 2 in that the
- the plateau 19 is characterized in that in the region of the plateau 19, the intensity deviates by a maximum of 5% from the mean value of the plateau 19. Be bilateral ig in memorisriehtung thereof
- Intensity maxiina 24 arranged. Inter mediate the intensity maxima 24 and the plateau 19 intensity minima 25 are arranged, the saddle points of j efug intensity distribution 22, 23 are. As is apparent from Figure 3, is the
- plateau 19 of the intensity distribution 23 is smoother than the plateau 19 of the intensity distribution 22 and the intensity maxima 24 de
- Intensity distribution 23 are formed less sharp than the intensity maxima 24 of the intensity distribution 22.
- the arrangement of the detector 12 in the ATR spectrometer according to the invention is less sensitive in terms of
- FIG. 5 shows a plot for which the length of the surface of the emitter 11 emitting the radiation 13 in the circumferential direction of the ATR crystal 1 was systematically varied in the simulation, the length of the surface 13 emitting the radiation 13 in the radial direction of the ATR crystal 1 however was left equal.
- a contrast parameter K is the two-dimensional resulting from the simulation
- I the intensity minimum 25 between the maximum intensity 24 and the plateau 19, where. the minimum intensity 25 a saddle point in the
- the detector 12 has a plurality of sensors 21 which are set up to detect the radiation 13 emitted by a single emitter 11. For example, in this embodiment, it is possible to perform a calibration for only a single sensor 21 and to apply the resulting calibration function to the other sensors 21 of the detector.
- the ⁇ TR spectrometer 17 according to FIG. 6 has a plurality of arrangements of the emitter 11, the detector 12 and the
- the emitters 11 and the detectors 12 are arranged alternately in the circumferential direction of the ATR crystal 1.
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)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016008886.9A DE102016008886B4 (de) | 2016-07-20 | 2016-07-20 | ATR-Spektrometer |
PCT/EP2017/067937 WO2018015316A1 (de) | 2016-07-20 | 2017-07-14 | Atr-spektrometer |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3488226A1 true EP3488226A1 (de) | 2019-05-29 |
Family
ID=59581844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17751265.4A Withdrawn EP3488226A1 (de) | 2016-07-20 | 2017-07-14 | Atr-spektrometer |
Country Status (5)
Country | Link |
---|---|
US (1) | US10605729B2 (de) |
EP (1) | EP3488226A1 (de) |
CN (1) | CN109716105B (de) |
DE (1) | DE102016008886B4 (de) |
WO (1) | WO2018015316A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109470636B (zh) * | 2018-09-25 | 2021-04-23 | 南京帕克光电科技有限公司 | 一种atr全反射棱镜 |
CN113030124A (zh) * | 2021-03-03 | 2021-06-25 | 赤壁精迈光电科技有限公司 | 亚表面的成像装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4730882A (en) * | 1986-02-10 | 1988-03-15 | Spectra-Tech, Inc. | Multiple internal reflectance spectroscopy system |
GB2276003B (en) * | 1993-03-09 | 1997-01-08 | Spectra Tech Inc | Method and apparatus for enhancing the usefulness of infrared transmitting materials |
EP0714024B1 (de) * | 1994-11-25 | 2002-01-30 | Kyoto Dai-ichi Kagaku Co., Ltd. | Vorrichtung und Verfahren zur Bestimmung von Wasserstoffperoxid |
US6118520A (en) * | 1996-12-18 | 2000-09-12 | The Dow Chemical Company | Dual analysis probe |
US5965889A (en) * | 1997-11-05 | 1999-10-12 | Pike Technologies Of Wisconsin, Inc. | Imaging stage for fourier transform infrared spectrometer |
AU2001241643A1 (en) * | 2000-03-10 | 2001-09-24 | Wilks Enterprise, Inc. | Spectroscopy analyzer using a detector array |
JP4116958B2 (ja) * | 2003-09-19 | 2008-07-09 | 株式会社堀場製作所 | 油分濃度測定方法および油分濃度測定装置 |
DE102006036409B4 (de) * | 2006-04-06 | 2011-06-22 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG, 70839 | ATR-Sonde zur Untersuchung eines Mediums mit Infrarotstrahlung |
EP2003441B1 (de) * | 2007-06-13 | 2011-01-05 | Mettler-Toledo AG | ATR-Sensor |
DE102007058611A1 (de) * | 2007-12-04 | 2009-06-10 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | ATR-Sonde |
US20120293860A1 (en) * | 2011-05-19 | 2012-11-22 | Pike Technologies | Internal reflection elements having increased energy throughput for attenuated total reflectance spectroscopy |
CN102323218A (zh) * | 2011-05-26 | 2012-01-18 | 浙江大学 | 基于光谱技术的物料实时检测监控装置 |
CN203275276U (zh) * | 2013-04-08 | 2013-11-06 | 广西壮族自治区机械工业研究院 | 衰减全反射探头 |
US20160299063A1 (en) * | 2013-10-11 | 2016-10-13 | Dic Corporation | Atr element, immersion probe, and spectrophotometer |
DE102014115502A1 (de) * | 2014-10-24 | 2016-04-28 | Pyreos Ltd. | Hautmessgerät und Armbanduhr |
-
2016
- 2016-07-20 DE DE102016008886.9A patent/DE102016008886B4/de active Active
-
2017
- 2017-07-14 CN CN201780057469.0A patent/CN109716105B/zh active Active
- 2017-07-14 WO PCT/EP2017/067937 patent/WO2018015316A1/de unknown
- 2017-07-14 EP EP17751265.4A patent/EP3488226A1/de not_active Withdrawn
-
2019
- 2019-01-19 US US16/252,625 patent/US10605729B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102016008886B4 (de) | 2020-09-17 |
CN109716105B (zh) | 2022-07-01 |
CN109716105A (zh) | 2019-05-03 |
DE102016008886A1 (de) | 2018-01-25 |
US20190154577A1 (en) | 2019-05-23 |
WO2018015316A1 (de) | 2018-01-25 |
US10605729B2 (en) | 2020-03-31 |
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