Patents by Inventor Georg Greuel

Georg Greuel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10018735
    Abstract: A luminescent composition includes a host matrix sensitized by Ce3+ and showing emission in the ultraviolet range. Typical host matrices include fluorides, sulphates, and phosphates, in particular A(Y1-x-yLuxLay)F4, A(Y1-x-yLuxLay)3F10, BaCa(Y1-x-yLuxLay)2F10, and Ba(Y1-x-yLuxLay)2F8, wherein A=Li, Na, K, Rb, or Cs. One or more of these luminescent compositions may be applied as a ceramic or single crystalline converter for CT, PET or SPECT scanners, or as a luminescent powder layer for x-ray intensifying screens.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: July 10, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Cornelis Reinder Ronda, Georg Greuel, Thomas Justel, Benjamin Herden, Tim Koecklar
  • Patent number: 9987499
    Abstract: The invention relates to an UV radiation device, comprising an LED comprising a nitridic material which is arranged to emit first UV radiation in a wavelength range of 200 nm-300 nm and a luminescent material doped with at least one of the following activators selected out of the group Eu2+, Ce3+, Pr3+, Nd3+, Gd3+, Tm3+, Sb3+, Tl+, Pb2+ and Bi3+, wherein the luminescent material is configured to convert at least a part of the primary UV radiation into secondary UV radiation, the primary UV radiation and the secondary UV radiation having a different spectral distribution.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: June 5, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Daiyu Hayashi, Jianghong Yu, Georg Greuel, Thomas Jüstel, Cornelis Reinder Reinder Ronda
  • Patent number: 9975788
    Abstract: An optical fluid treatment device comprising at least a holder provided with an aperture, a lamp device at least partly located in the aperture. The aperture comprises a fluid passage extending in a main fluid flow direction between a fluid inlet opening and a fluid outlet opening. The fluid passage extends at least partly along the lamp device, wherein the lamp device has an elongated shape extending substantially perpendicularly to the main fluid flow direction.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: May 22, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Georg Greuel, Sandeep Sangameswaran
  • Publication number: 20160303394
    Abstract: The invention relates to an UV radiation device, comprising an LED comprising a nitridic material which is arranged to emit first UV radiation in a wavelength range of 200 nm-300 nm and a luminescent material doped with at least one of the following activators selected out of the group Eu2+, Ce3+, Pr3+, Nd3+, Gd3+, Tm3+, Sb3+, Tl+, Pb2+ and Bi3+, wherein the luminescent material is configured to convert at least a part of the primary UV radiation into secondary UV radiation, the primary UV radiation and the secondary UV radiation having a different spectral distribution.
    Type: Application
    Filed: May 6, 2014
    Publication date: October 20, 2016
    Inventors: Daiyu HAYASHI, Jianghong YU, Georg GREUEL, Thomas JÜSTEL, Cornelis Reinder Reinder RONDA
  • Publication number: 20160146950
    Abstract: This disclosure relates to luminescent compositions comprising a host matrix sensitized by Ce3+ and showing emission in the ultraviolet range. Typical host matrices include fluorides, sulphates, and phosphates, in particular A(Y1-x-yLuxLay)F4, A(Y1-x-yLuxLay)3F10, BaCa(Y1-x-yLuxLay)2F10, and Ba(Y1-x-yLuxLay)2F8, wherein A=Li, Na, K, Rb, or Cs. One or more of these luminescent compositions may be applied as a ceramic or single crystalline converter for CT, PET or SPECT scanners, or as a luminescent powder layer for x-ray intensifying screens.
    Type: Application
    Filed: July 17, 2014
    Publication date: May 26, 2016
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Cornelis Reinder RONDA, Georg GREUEL, Thomas JUSTEL, Benjamin HERDEN, Tim KOECKLAR
  • Patent number: 9334442
    Abstract: The invention provides a a luminescent material comprising particles of UV-luminescent material having a coating, wherein the coating (a “multi-layer coating”) comprises a first coating layer and a second coating layer, wherein the first coating layer is between the luminescent material and the second coating layer, and wherein in a specific embodiment the second coating layer comprises an alkaline earth oxide, especially MgO. Further, the invention provides a lighting unit comprising such luminescent material.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: May 10, 2016
    Assignee: Koninklijke Philips N.V.
    Inventors: Georg Greuel, Thomas Juestel, Jagoda Magdalena Kuc
  • Publication number: 20160096748
    Abstract: An optical fluid treatment device comprising at least a holder provided with an aperture, a lamp device at least partly located in the aperture. The aperture comprises a fluid passage extending in a main fluid flow direction between a fluid inlet opening and a fluid outlet opening. The fluid passage extends at least partly along the lamp device, wherein the lamp device has an elongated shape extending substantially perpendicularly to the main fluid flow direction.
    Type: Application
    Filed: May 5, 2014
    Publication date: April 7, 2016
    Inventors: GEORG GREUEL, SANDEEP SANGAMESWARAN
  • Patent number: 9296610
    Abstract: An optical reactor has a reactor enclosure defining a reaction chamber. In the reaction chamber, a light source operating at a very high frequency is arranged to radiate light to a fluid to be treated. A low voltage electrode is arranged to surround the light source. The light source is energized by a driving circuit which is arranged adjacent to the reactor enclosure. The driving circuit has a high voltage output terminal connected to a high voltage input terminal of the light source. The driving circuit has a low voltage output terminal which is connected to the low voltage electrode.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: March 29, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Georg Greuel, Marc Maria Alex Bleukx
  • Patent number: 9045358
    Abstract: A disinfecting device is proposed that is well suited for household and outdoor use. The device comprises a container housing 12 with an interior volume 24, which may contain an object or a liquid to be disinfected. The container housing 12 comprises a side wall 16 and an end cover 14. A dielectric barrier discharge lamp 32 is provided for emitting ultraviolet light into the volume 24. The lamp 32 comprises a lamp vessel 34 with gas filling and electrodes 42, 44 arranged electrically insulated from the gas filling. An alternating voltage applied to the electrodes 42, 44 causes a discharge in the gas filling. The lamp vessel 34 has a planar window from which during the discharge ultraviolet light 46 is emitted. The window is arranged in the end cover 14.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: June 2, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Georg Greuel
  • Publication number: 20140333203
    Abstract: The invention provides a lighting unit (100) comprising (1) a vacuum ultraviolet (VUV) radiation based source of radiation (10) configured to generate VUV radiation (11), and (2) a luminescent material (20) configured to convert at least part of the VUV radiation into visible luminescent material light (21), wherein the luminescent material comprises a trivalent praseodymium containing material selected from the group consisting of (Zr1-x-yHfxPry)(Si1-yPy)04, (Zr1-x-yHfxPry)3((P1-3/4yS3/4y)04)4, and (Zr1-x-yHxPry)3((B1-3/4yX3/4y))O3)4, with x in the range of 0.0-1.0 and y being larger than 0 and being equal to or smaller than 0.15.
    Type: Application
    Filed: December 4, 2012
    Publication date: November 13, 2014
    Inventors: Georg Greuel, Thomas Juestel, Helga Bettentrup, Benjamin Herden, David Enseling
  • Patent number: 8834789
    Abstract: In a fluid treatment system includes a housing with fluid inlet and outlet for a process fluid, an irradiation zone disposed between the fluid inlet and fluid outlet, and at least one radiation source module with a radiation source having a discharge vessel with outer and inner wall. The inner wall encloses an internal volume with at least one opening and an internal electrode for igniting and maintaining a discharge. The radiation source module also includes a submersible frame with a guide to guide the process fluid into and out of the internal volume of the radiation source. The dissipation of the heat generated by the discharge in the discharge gap via a fluid flow in the internal volume of the lamp and in contact with the internal electrode is substantially more effective than dissipation via a cooling channel separated from the internal electrode. It is therefore substantially easier to maintain the discharge at an approximately optimal temperature.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: September 16, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Wolfgang Schiene, Georg Greuel
  • Publication number: 20140131619
    Abstract: The invention provides a a luminescent material comprising particles of UV-luminescent material having a coating, wherein the coating (a “multi-layer coating”) comprises a first coating layer and a second coating layer, wherein the first coating layer is between the luminescent material and the second coating layer, and wherein in a specific embodiment the second coating layer comprises an alkaline earth oxide, especially MgO. Further, the invention provides a lighting unit comprising such luminescent material.
    Type: Application
    Filed: June 25, 2012
    Publication date: May 15, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Georg Greuel, Thomas Juestel, Jagoda Magdalena Kuc
  • Publication number: 20130289132
    Abstract: The invention provides a wavelength converting material comprising a compound of the formula (Y1-w-x-y-zScwLaxGdyLuz)2-a(S04)3:Mea, wherein Me represents trivalent cation or a mixture of trivalent cations capable of emitting UV-C radiation, and wherein each of w, x, y and z is in the range of from 0.0 to 1.0 and w+x+y+z?1.0, and wherein 0.0005?a?0.2. The wavelength converting material may be applied in an illumination device for UV illumination, in particular for sterilization or disinfection by germicidal UV illumination.
    Type: Application
    Filed: December 13, 2011
    Publication date: October 31, 2013
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Georg Greuel, Julian Plewa, Helga Bettentrup, Thomas Juestel
  • Patent number: 8546766
    Abstract: Devices and Methods for sensing UV dosage of a fluid stream are described. In a first aspect, a device 22 has a first sensor arrangement 44 for measuring a flow speed of the fluid and a second sensor arrangement 50 for measuring an intensity of UV light radiation. A dosage calculation unit 36 calculates a dosage value from measurements of the sensor arrangements 44, 50. The first sensor arrangement includes a resistive electrical component 32 in thermal contact with the fluid. The electrical component 32 may be heated by an electrical current and has a temperature dependent electrical resistance. Thus, the first sensor arrangement may be used to determine the flow speed of the fluid from a cooling rate of the resistive electrical component 32. According to a second aspect, a device 70 includes at least one UV sensor component 76 for measuring an intensity of UV light irradiation. A data storage 82 for storing intensity or dosage values and an electrical power storage 88 are provided.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: October 1, 2013
    Assignee: Koninklijke Philips N.V.
    Inventor: Georg Greuel
  • Publication number: 20130207002
    Abstract: The invention provides a luminescent material comprising a component selected from the group comprising (Y1-xLux)9LiSi6O26:Ln or/and AE5(PO4)3F:Ln,A, wherein Ln is a trivalent rare earth metal, AE is a divalent alkaline earth metal, and A is a monovalent alkaline metal, x>0.0 and <1.0. The luminescent material has an emission peak in the UV-C range when being excited by light in the UV spectrum range. The invention further provides a light emitting device comprising the said luminescent material and a method of using said light emitting device for disinfection or purification of air, water or surfaces.
    Type: Application
    Filed: October 17, 2011
    Publication date: August 15, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Georg Greuel, Thomas Justel, Helga Bettentrup, Julian Plewa
  • Publication number: 20130119266
    Abstract: A device for subjecting a fluid to a disinfecting treatment by exposing the fluid to ultraviolet light comprises a reactor (10) having an inner space (11) in which means (20) for emitting ultraviolet light are arranged, an inlet (12) for letting fluid into the inner space (11), and an outlet for letting out fluid from the inner space (11). The light emission means (20) comprise a single electrode, wherein a wall (14) encompassing the inner space (11) is adapted to function as an electrode and comprises electrically conductive material, and wherein the device further comprises means (30) which also comprise electrically conductive material, and which are arranged for locally enhancing the electrical conductivity in a space between the reactor wall (14) and the light emission means (20).
    Type: Application
    Filed: July 11, 2011
    Publication date: May 16, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Eva Mondt, Einte Holwerda, Daiyu Hayashi, Georg Greuel
  • Publication number: 20130116756
    Abstract: The invention relates to a discharge lamp with a novel garnet-type Pr or Tm doped phosphor with excellent UV-A and UV-B spectral properties.
    Type: Application
    Filed: July 8, 2011
    Publication date: May 9, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Thomas Juestel, Georg Greuel
  • Patent number: 8378775
    Abstract: Transformers (1) for transforming primary signals into secondary signals comprise primary and secondary parts that comprise boards (11-14, 21-23) with turns. By introducing distances larger than zero between for example any pair of neighboring boards (11-14, 21-23), parasitic capacitances of the transformers (1) are reduced, and the secondary signals may comprise relatively fast/high voltage pulses having rise times >1 kV/?sec. To reduce proximity effects and any resulting losses, the primary and secondary boards (11-14, 21-23) may be stacked in interleaved ways. Such sandwich constructions reduce leakage inductances. In a particular direction, distances between subsequent primary boards (11-14, 21-23) and distances between subsequent combinations of primary and secondary boards (11-14, 21-23) are to be increased to further reduce capacitive losses in that particular direction.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: February 19, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Wolfgang Schiene, Georg Greuel, Marc Maria Alex Bleukx, Roman Siegfried Schichl
  • Publication number: 20130029016
    Abstract: The invention provides a beverage carbonator (1) for providing a carbonated beverage (2). The beverage carbonator (1) comprises (a) a CO2 generation unit (10) comprising a photo electrochemical cell (22) arranged to convert an organic compound (23) in a first liquid (21) comprising the organic compound (23) under influence of light (24) into at least CO2 and to produce a CO2 comprising gas (25), (b) a pressure regulator (30) arranged to pressurize the CO2 comprising gas (25), and (c) a mixing chamber (40) for mixing the CO2 comprising gas (25) under pressure into a second liquid (41) to provide the carbonated beverage (2).
    Type: Application
    Filed: April 7, 2011
    Publication date: January 31, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Bart Gottenbos, Georg Greuel, Cornelis Reinder Ronda, Petrus Henricus Laurentius Notten
  • Publication number: 20120237409
    Abstract: An optical reactor has a reactor enclosure defining a reaction chamber. In the reaction chamber, a light source operating at a very high frequency is arranged to radiate light to a fluid to be treated. A low voltage electrode is arranged to surround the light source. The light source is energized by a driving circuit which is arranged adjacent to the reactor enclosure. The driving circuit has a high voltage output terminal connected to a high voltage input terminal of the light source. The driving circuit has a low voltage output terminal which is connected to the low voltage electrode.
    Type: Application
    Filed: December 22, 2009
    Publication date: September 20, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Georg Greuel, Marc Maria Alex Bleukx