WO2017134167A1 - Outil agitateur - Google Patents

Outil agitateur Download PDF

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Publication number
WO2017134167A1
WO2017134167A1 PCT/EP2017/052257 EP2017052257W WO2017134167A1 WO 2017134167 A1 WO2017134167 A1 WO 2017134167A1 EP 2017052257 W EP2017052257 W EP 2017052257W WO 2017134167 A1 WO2017134167 A1 WO 2017134167A1
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
light
coupling
stirring tool
tool according
Prior art date
Application number
PCT/EP2017/052257
Other languages
German (de)
English (en)
Inventor
Peter Brick
Nils KAUFMANN
Original Assignee
Osram Opto Semiconductors Gmbh
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 Osram Opto Semiconductors Gmbh filed Critical Osram Opto Semiconductors Gmbh
Publication of WO2017134167A1 publication Critical patent/WO2017134167A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/02—Stirrer or mobile mixing elements
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M31/00—Means for providing, directing, scattering or concentrating light
    • C12M31/08—Means for providing, directing, scattering or concentrating light by conducting or reflecting elements located inside the reactor or in its structure
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/06—Means for regulation, monitoring, measurement or control, e.g. flow regulation of illumination
    • C12M41/08—Means for changing the orientation

Definitions

  • the invention relates to a stirring apparatus according to patent applica ⁇ demanding. 1
  • Stirring tools are used, for example, in a photobioreactor, in order to enable mixing of the reactor contents and egg ⁇ ne supply of light to the reactor contents in deeper areas of the reactor.
  • Corresponding stirring tools are known from DE 10 2011 002 763 A1 and EP 2 520 642 A1.
  • the object of the invention is to provide an improved stirring tool for a reactor, in particular for a photobioreactor.
  • An advantage of the stirring tool described is that, on the one hand, an improved stirring function is made possible while maintaining or improving the supply of light.
  • a stirring apparatus comprising a light guide provided schla ⁇ gene, wherein the light conductor comprises a coupling region for Einkop- PelN of light, wherein the light conductor extends along a longitudinal direction, wherein the light guide is configured to guide light from the coupling region to an end portion, wherein the light guide is adapted to emit light along the longitudinal direction laterally, wherein the Optical fiber has at least one arcuate portion.
  • the arcuate portion has at least the shape of a partial cone section. This ensures good mixing and good light distribution.
  • a curve is understood that occurs when a section of a straight double circular cone (rotational ⁇ cone) with a plane.
  • a partial cone section comprises part of the conic section.
  • Ellipse, circle, parabola, hyperbola Depending on the Nei ⁇ supply angle of the cutting plane relative to the half ⁇ ff ⁇ opening angle of the cone, the following conic sections arise.
  • partial conical sections ⁇ partial ellipses, partial circles, parabolas or part Detailhy- is perbeln.
  • the arcuate portion is formed in the form of a spiral. In one embodiment, the arcuate portion we ⁇ tendonss 180 ° especially at least 360 ° surrounded to a center ⁇ axis.
  • the arcuate portion surrounds at least 720 ° about a central axis.
  • the arcuate portion is in the form of a spiral having an arcuate portion.
  • the bo ⁇ genförmige section may extend over 360 ° or more, in particular over 720 °. This ensures good mixing and light distribution even in higher reactors.
  • the light guide has a first and a second portion, which portions merge into one another, wherein the light guide up to a reversing area extends from the coupling region in the first portion away from the coupling region, wherein the light ⁇ conductor starting from the inversion region over the second portion extends back towards the coupling region.
  • the light guide is designed as a closed loop. This provides a stable shape of the light guide.
  • the stirring tool has a light source which radiates light into the coupling-in region, the light source having a light-emitting semiconductor chip.
  • the semiconductor chip provides an efficient light source that takes up little space.
  • a coupling element is provided between the light source and the light guide in order to couple the light into the light guide. As a result, the light coupling is improved.
  • the light guide is formed of a material having a refractive index, wherein the Biegeab ⁇ section having a bending radius, wherein the light conductor comprises egg ⁇ NEN round cross section with a diameter, wherein the refractive index of 1.4 to 2, said the Ver ⁇ ratio between the bending radius and the diameter between 2 and 100 is.
  • At least two light guides are provided. This allows increased flexibility in the shape of the light guides.
  • 1 is a schematic representation of a first embodiment of the stirring tool
  • 2 is a top view of the light guide
  • FIG. 6 is a schematic representation of a second embodiment of the stirring tool
  • FIG. 7 shows a schematic view from above of the light guide of FIG. 6,
  • Fig. 8 is a schematic bottom view of the light ⁇ head of Fig. 6
  • Fig. 9 is a schematic representation of a Biegeabschnit ⁇ tes of the light guide
  • FIG. 10 is a first diagram showing characteristics for different refractive indices depending on a maximum angle of incidence and depending on the ratio of Ra ⁇ dius to the diameter of the stirring tool,
  • Fig. 11 is a second diagram, the characteristics for maximum
  • Angle of incidence depends on the ratio of the bending radius to the diameter and depending on the refractive index
  • Fig. 12 is a third diagram showing characteristic curves for various ratios of the bending radius to the diameter, depending on the refractive index and from the maxima ⁇ len angle of incidence,
  • FIG. 13 is a fourth diagram showing characteristics for refractive indices depending on a beam angle and as a function of the ratio of the bending radius to the diameter
  • Fig. 14 is a fifth diagram showing characteristics for maximum
  • Fig. 15 shows a sixth diagram showing characteristic curves for various ratios of the radius to the diameter in Ab ⁇ dependence of the refractive index and depending on the beam angle.
  • the stirring tool 3 has a light guide 4, which has a coupling-in region 5 for coupling in light.
  • the light guide 4 extends along a longitudinal direction 6, which is shown as a dashed axis.
  • the light guide 4 is formed from a light-conducting material, for example glass or plastic, or has at least one light-conducting material 4.
  • the light guide 4 has a plurality of arcuate portions 7.
  • the light guide 4 is formed as a spiral with a plurality of arcuate sections, wherein the spiral winds around the longitudinal direction 6.
  • the light guide 4 extends from the coupling region 5, which lies outside of the reactor 1, up to a rich Endbe ⁇ 8 which is angeord ⁇ net above a floor 50 of the reactor. 1
  • the arcuate portions 7 in the illustrated embodiment are arranged radially symmetrically about a central axis 9, in which the longitudinal direction 6 is shown.
  • the end region 8 of the light guide 4 is aligned perpendicular to the central axis 9 in the illustrated embodiment.
  • the light guide 4 may also have the form of a helix or a double helix.
  • the light guide 4 may also be in a plane to be arranged with ⁇ tenachse 9 passes through, and have a plurality of lined-up bogenförmi ⁇ ge portions 7, so that the light guide 4 at least an S-shape, in particular a plurality of juxtaposed S-shapes, along the longitudinal direction 6 in the plane.
  • the arcuate portions 7 of the light guide 4 form two spiral circles, each with 360 °.
  • Optical fiber 4 have a fixed pitch and a fixed diameter.
  • the light guide 4 may have a circular shape, an ellipse shape or similar rounded shapes in cross section.
  • the light guide 4 may also have an angular area in cross section.
  • Light guide 4 triangular, square or polygonal design.
  • the coupling region 5 is formed in the illustrated embodiment in the form of a planar cross-sectional area 10 at the upper end of the light guide 4.
  • a light source 11 is arranged.
  • the light source is formed, for example in the form of an optoelectronic rule ⁇ semiconductor chip 11, the electromagnetic radiation on a radiation face 12 emits.
  • a coupling element in the form of a lens 13 is arranged on the emission side of the semiconductor chip 12. 11
  • the lens 13 serves to focus the light emitted from the semi-conductor chip 11 ⁇ light in the direction of the cross-sectional area 10th In the illustrated embodiment, the lens 13 is spaced from the cross-sectional area 10.
  • the lens 13 can be dispensed with and the semiconductor chip 11 can rest directly on the cross-sectional area 10.
  • the lens 13 may also be arranged on the end of the light guide 4.
  • other types and forms of coupling elements may be provided.
  • the coupling-in region 5 of the optical waveguide 4 can also have coupling-in structures for improved coupling of electromagnetic radiation into the optical waveguide 4.
  • reflectors, lenses, TIR lenses or concentrators can be provided.
  • the semiconductor chip can also be fixedly connected to the light guide. It is an unillustrated drive ⁇ selement 53, in particular an electric motor provided which rotates the stirring tool with the light guide 4 about the center axis 9.
  • Fig. 2 shows a schematic view from above of the
  • the light guide 4 is formed spirally.
  • the light guide 4 may have at least one spiral winding or a plurality of spiral turns.
  • FIG 3 shows a schematic view from below of a view of the light guide 4 with the end region 8.
  • FIG. 4 shows, in a schematic side view, a section of the optical waveguide 4, which according to the embodiment of FIG. 1 is designed as a spiral.
  • the light guide 4 is rotated about the central axis 9, for example.
  • a mixing of the reactor medium 2 a discharged over the surface 14 of the light guide 4 of electromagnetic radiation is distributed evenly in the reactor volume 1 on the one achieved and walls ⁇ ren.
  • other axes of rotation can be used which are not in the center axis 9.
  • the light guide 4 may have scattering particles or scattering elements in the interior or on the surface 14 in order to couple electromagnetic radiation via the surface 14 into the reactor 1. Further- toward the light guide can have 4 conversion material beispielswei ⁇ se phosphor to move one of the light source 11 Be ⁇ riding asked electromagnetic radiation in the wavelength at least partially.
  • the conversion material can be distributed in the volume of the light guide 4 or arranged as a surface coating on the surface 14 of the light guide 4.
  • scattering centers for example in the form of particles, diffusers or structures, for example in the form of prisms, tapers or a roughened surface 14, can be used to decouple the electromagnetic radiation.
  • Fig. 5 shows a cross section through a section of egg ⁇ nes bent portion 7 of the light guide 4.
  • the surface 14 is covered with a layer of conversion material 15.
  • the Kon ⁇ version material 15 and scattering elements 51 such as scatter ⁇ particles or diffusion particles may be provided to couple light from the optical fiber 4 into the reactor 1.
  • the surface 14 and / or the layer 15 may be formed in the form of a roughened or correspondingly structured surface in order to improve an outcoupling of electromagnetic radiation into the reactor 1.
  • Fig. 6 shows a schematic representation of another embodiment of the stirring tool 3 with the light guide 4, wherein in this embodiment, the light guide as the
  • Light guide 4 is formed in the form of a closed loop. Starting from the coupling region 5, a first spiral-shaped portion 17 extends to a reverse region 18. Starting from the turnaround section 18 extends a second, also a spiral portion 19 back to the Einkoppelbe ⁇ rich 5. The second section 19 merges into the Einkoppelbe ⁇ rich. 5 Each of the sections 17, 19 has at least 1.5 circular arcs. In addition, the spiral-shaped first and second sections 17, 19 are interlaced.
  • FIG. 7 shows a schematic view of the optical waveguide 4 of FIG. 6 from above and FIG. 8 shows a schematic view of the optical waveguide 4 of FIG. 6 from below.
  • FIG. 9 shows, in a schematic representation, a partial section of an arcuate section 7 of the light guide 4, which adjoins the coupling-in region 5.
  • Electromagnetic radiation 20 which is emitted from the light emitting element 11 to the cross-section ⁇ surface 10 is coupled to a maximum angle of incidence 21 ⁇ ⁇ into the light guide 4, and guided in the light guide 4 via total reflection at an outer surface of the light guide 4 in the light guide. 4
  • the Lichtlei ⁇ ter 4 has a diameter D.
  • the light guide 4, starting from the coupling region 5 merges into the curved section 7, the curved section 7 having a radius of curvature R.
  • a deflected at the cross-sectional area 10 light beam 34 has a beam angle 35 to the center axis 9 of the Lichtlei ⁇ ters 4 on.
  • the refractive index of the light guide and the ratio of the bending radius to the diameter is selected so that preferably 50% or more, in particular 60% or 70% of the coupled into the light guide light within the maximum angle of incidence 21 ⁇ ⁇ are.
  • the maximum angle of incidence 21 is 43.2 °.
  • the maximum angle of incidence kels of 43.2 ° occurs after a coupling of the electromagnetic radiation no total reflection on the inside of the surface 14 of the light guide 4. This Situational ⁇ tion is for guiding the electromagnetic radiation in the light guide 4 of disadvantage.
  • the maximum angle of incidence 21 is 51.1 ° for the total reflection after the electromagnetic radiation has been coupled into the optical waveguide 4 the inside of the surface 14 of the Lichtlei ⁇ ters 4 occurs.
  • the maximum angle of incidence contributes ⁇ be 61.9 ° for the nor after the injection of the electromagnetic radiation into the optical fiber 4 total reflection on the inside of the surface 14 of the light guide 4 occurs.
  • the maximum angle of incidence is 90 ° for the total reflection after the coupling of the electromagnetic radiation into the optical waveguide 4 Inside the surface 14 of the light guide 4 occurs.
  • a critical beam angle 22 with respect to a vertical axis 52 to the surface 14 may be indicated for the various refractive indices n.
  • n refractive index
  • FIG. 10 shows a first diagram, in which the maximum angle of incidence 21 ⁇ ⁇ on the ordinate and on the abscissa Ratio R / D between the bending radius R and the diameter D of the bent portion 7 of the light guide 4 are indicated.
  • characteristic curves 23, 24, 25 for different refractive indices are shown in the diagram of FIG.
  • the characteristic curves 23, 24, 25 represent limits for the maximum angle of incidence 21 ⁇ ⁇ . If the maximum input beam angle ⁇ ⁇ above the characteristic curve, the light is no longer guided by the total reflection in the light guide 4 after being coupled into the light guide 4.
  • FIG. 11 shows a further diagram in which the refractive index n of the optical waveguide is based on the ordinate and the ratio
  • R / D of the radius R to the diameter D of the bending section 7 of the light guide 4 are plotted on the abscissa.
  • characteristic curves for different maximum angle of incidence ⁇ 21 are given to ⁇ .
  • a fourth characteristic curve 26 is indicated for a maximum angle of incidence 21 of 30 °.
  • a fifth characteristic 27 is given for a maximum angle of incidence of 45 °.
  • a sixth characteristic 28 is given for a maximum angle of incidence of 60 °.
  • a seventh characteristic 29 is given for a maximum angle of incidence of 90 °.
  • the characteristics indicate that for a good guidance of the light in Lichtlei ⁇ ter 4, in particular for a total reflection of the light in the optical waveguide 4, a refractive index is required, which is above the specified characteristics 26, 27, 28, 29.
  • the 12 shows a diagram in which the ordinate the refractive index n and on the abscissa a maximum angle of incidence 21 ⁇ ⁇ are plotted.
  • different characteristic curves 30, 31, 32, 33 are indicated in the diagram.
  • the eighth characteristic 30 is given for a ratio of the radius to the diameter of 1000.
  • the ninth characteristic 31 is given for a ratio of the radius to the diameter of 10.
  • the tenth characteristic 32 is given for a ratio of the radius to the diameter for the value 5.
  • the eleventh characteristic 33 is for a ratio of the radius to the diameter with a Value of 3.3 indicated.
  • a refractive index is required for corresponding maximum irradiation angles ⁇ ⁇ and the predetermined ratio of radius to diameter, which is above the respective characteristic curve 30, 31, 32, 33 lies.
  • Fig. 13 is a diagram in which the inner beam angle 35 ⁇ ⁇ on the ordinate and the ratio R / D of the radius R to the diameter D of the bending portion of the optical fiber are plotted on the abscissa.
  • further first, second, third characteristic curves are shown.
  • the further first characteristic curve 36 is for a refractive index n of 1.6
  • the white ⁇ tere second characteristic curve 37 for n is less than 1.8
  • the further third characteristic curve plotted for n 38 2.0.
  • Fig. 14 shows a diagram in which the ordinate represents the refractive index n and the abscissa the ratio R / D of the Ra ⁇ dius R are applied to the diameter D.
  • fourth, fifth, sixth, seventh characteristics for different? ⁇ che maximum internal beam angle 35 are plotted ⁇ ⁇ .
  • the white ⁇ tere first characteristic is ⁇ ⁇ for a maximum internal beam angle of 10 °
  • the further fifth characteristic for a maximum of 20 °
  • the further sixth characteristic curve 41 for a maximum of 30 °
  • the further seventh characteristic 42 for an internal beam angle ⁇ of at most 40 ° indicated.
  • the refractive index n of the light guide must be at least 1.89 min ⁇ .
  • FIG. 15 shows a diagram in which the ordinate has the refractive index n and on the abscissa the inner maximum
  • Beam angle 35 ⁇ ⁇ are plotted.
  • another eighth, ninth, tenth and eleventh characteristic 43, 44, 45, 46 is provided ⁇ .
  • Further eighth characteristic curve 43 is for a behaves ⁇ nis radius to diameter of 1000
  • the additional ninth characteristic curve 44 is for a ratio of radius to diameter of 10
  • further tenth characteristic curve 45 is for a behaves ⁇ nis the radius to diameter 5
  • the other eleventh characteristic 46 is entered for a ratio of radius to diameter of 3.3.
  • the corresponding values for the refractive index n have the innneren beam angle ⁇ ⁇ exceed the characteristics dependent.
  • the values shown in the diagrams refer to the situation that the coupling region of the optical fiber is in air and that the light guide is in the Reaktorme ⁇ dium, in particular water having a refractive index of 1.33.
  • Other environments have different values for the graphs and characteristics.
  • the reactor 1 provides e.g. a photobioreactor, the example of phototrophic microorganisms such as microalgae such as spirulina or chlorella mixed with water as the reactor medium. Phototrophic microorganisms are capable of using light energy using
  • the reactor medium may also include other materials in which agitation and light delivery are beneficial.

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  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Biomedical Technology (AREA)
  • Sustainable Development (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • Analytical Chemistry (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

La présente invention concerne un outil agitateur pour un photobioréacteur, qui comporte un guide d'ondes optiques présentant une zone d'injection pour l'injection de lumière et s'étendant dans une direction longitudinale. Ledit guide d'ondes optiques est conçu pour acheminer de la lumière de la zone d'injection vers une zone terminale, et étant en outre conçu pour envoyer de la lumière latéralement le long de la direction longitudinale. Ledit guide d'ondes comporte au moins un segment incurvé.
PCT/EP2017/052257 2016-02-02 2017-02-02 Outil agitateur WO2017134167A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016101797.3A DE102016101797A1 (de) 2016-02-02 2016-02-02 Rührwerkzeug
DE102016101797.3 2016-02-02

Publications (1)

Publication Number Publication Date
WO2017134167A1 true WO2017134167A1 (fr) 2017-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/052257 WO2017134167A1 (fr) 2016-02-02 2017-02-02 Outil agitateur

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DE (1) DE102016101797A1 (fr)
WO (1) WO2017134167A1 (fr)

Citations (8)

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JPH0358780A (ja) * 1989-07-25 1991-03-13 P C C Technol:Kk 攪拌型培養装置
DE4416069A1 (de) * 1994-04-21 1995-10-26 Inst Getreideverarbeitung Verfahren und Vorrichtung zum Ausleuchten von Medien
US20100005711A1 (en) * 2008-07-09 2010-01-14 Sartec Corporation Lighted Algae Cultivation Systems
DE102011002763A1 (de) 2011-01-17 2012-07-19 Wacker Chemie Ag Photobioreaktor mit Beleuchtung mittels Leucht-Formteilen
EP2520642A1 (fr) 2011-05-03 2012-11-07 Bayer Intellectual Property GmbH Photobioréacteur avec une source lumineuse à mouvement rotatif oscillant
US20120288921A1 (en) * 2009-12-10 2012-11-15 Guangzhou Institute Of Energy Conversion, Chinese Academy Of Sciences Solar powered spectral photosynthetic bioreactor system for culturing microalgae at high density
DE102013015423A1 (de) * 2013-09-18 2015-03-19 Airbus Defence and Space GmbH Photobioreaktor mit seitlich licht-auskoppelnden Lichtleitermatten
DE102013019889A1 (de) * 2013-11-28 2015-05-28 Airbus Defence and Space GmbH Photobioreaktor mit Matten aus licht-auskoppelnden Lichtleiterfasern und ein elektrisches Wanderfeld erzeugenden elektrisch leitfähigen Fasern

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US2815607A (en) * 1954-11-26 1957-12-10 William E Beatty Process and apparatus for the culture of photo-synthetic micro-organisms and macro-organisms, particularly algae
DE1777802U (de) * 1958-08-28 1958-11-20 Haagen & Rinau Maschinenfabrik Ruehrwerkzeug.
JP2799896B2 (ja) * 1990-03-22 1998-09-21 住友重機械工業株式会社 培養槽
DE29703070U1 (de) * 1997-02-21 1997-04-17 Würtz, Willi B., 75031 Eppingen Rührer zum Mischen von flüssigen Materialien
WO2002062458A1 (fr) * 2001-02-06 2002-08-15 Levtech, Inc. Appareil et procede pour melanger des materiaux scelles dans un contenant dans des conditions steriles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0358780A (ja) * 1989-07-25 1991-03-13 P C C Technol:Kk 攪拌型培養装置
DE4416069A1 (de) * 1994-04-21 1995-10-26 Inst Getreideverarbeitung Verfahren und Vorrichtung zum Ausleuchten von Medien
US20100005711A1 (en) * 2008-07-09 2010-01-14 Sartec Corporation Lighted Algae Cultivation Systems
US20120288921A1 (en) * 2009-12-10 2012-11-15 Guangzhou Institute Of Energy Conversion, Chinese Academy Of Sciences Solar powered spectral photosynthetic bioreactor system for culturing microalgae at high density
DE102011002763A1 (de) 2011-01-17 2012-07-19 Wacker Chemie Ag Photobioreaktor mit Beleuchtung mittels Leucht-Formteilen
EP2520642A1 (fr) 2011-05-03 2012-11-07 Bayer Intellectual Property GmbH Photobioréacteur avec une source lumineuse à mouvement rotatif oscillant
DE102013015423A1 (de) * 2013-09-18 2015-03-19 Airbus Defence and Space GmbH Photobioreaktor mit seitlich licht-auskoppelnden Lichtleitermatten
DE102013019889A1 (de) * 2013-11-28 2015-05-28 Airbus Defence and Space GmbH Photobioreaktor mit Matten aus licht-auskoppelnden Lichtleiterfasern und ein elektrisches Wanderfeld erzeugenden elektrisch leitfähigen Fasern

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199117, Derwent World Patents Index; AN 1991-120499, XP002768613 *

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