Patents by Inventor Hermann Von Lilienfeld-Toal
Hermann Von Lilienfeld-Toal 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: 11639894Abstract: A method and apparatus for analyzing a substance is disclosed. An optical medium is arranged on a substance surface with at least one region of the optical medium surface in contact with the substance surface. An excitation light beam is emitted through the contacting region of the medium surface (to the substance surface. A measurement light beam is emitted through the optical medium to the contacting region of the medium surface such that the measurement light beam and the excitation light beam overlap on the interface of the optical medium and of the substance surface, on which the measurement light beam is reflected. A deflection of the reflected measurement light beam is detected in dependence on the wavelength of the excitation light beam. The substance is then analyzed based on the detected deflection of the measurement light beam in dependence on the wavelength of the excitation light beam.Type: GrantFiled: January 4, 2021Date of Patent: May 2, 2023Assignee: DiaMonTech AGInventors: Werner Mäntele, Miguel Angel Pleitez Rafael, Tobias Lieblein, Otto Hertzberg, Alexander Bauer, Hermann Von Lilienfeld-Toal, Arne Küderle, Tabea Pfuhl
-
Patent number: 11391703Abstract: The disclosure relates to a photoacoustic sensor head for detecting acoustic signals which are excited in a sample by absorption of pulsed measuring light, comprising a contact prism which is transparent for the measuring light and has a sample contact surface, a detection surface arranged opposite the sample contact surface and a light entrance surface arranged adjacent to the detection surface, as well as means for radiating the measuring light through the light entrance surface in the direction of the sample contact surface, wherein a detection device comprising at least one sound transducer is arranged in a manner covering the detection surface, characterized in that those portions of the measuring light which are reflected at the sample contact surface are directed to the detection surface or to the light entrance surface, wherein a material layer containing a material which absorbs the measuring light is arranged between the detection surface and the detection device.Type: GrantFiled: October 26, 2018Date of Patent: July 19, 2022Assignee: QUANTUNE TECHNOLOGIES GMBHInventors: Hermann Von Lilienfeld-Toal, Jan-Ferenc Kischkat, Oliver Supplie
-
Patent number: 11268899Abstract: A method comprises a) radiating at least one measurement light pulse having a pulse duration and intensity onto a measurement area of the inhomogeneous sample; b) detecting at least one pressure transient at the measurement area; and c) calculating a value for the energy density absorbed by the sample during the pulse duration from a curve of the at least one pressure transient at the start and at the end of the at least one measurement light pulse. The method further includes: repeating steps a) to c) for different angles of incidence of the measurement light; modelling the inhomogeneous sample as a stack of layers, each layer being assigned at least a layer thickness and an absorption coefficient, at least one absorption coefficient of a layer being a fitting parameter; and performing a fitting procedure for the fitting parameters; outputting the fitted fitting parameters.Type: GrantFiled: October 26, 2018Date of Patent: March 8, 2022Assignee: QUANTUNE TECHNOLOGIES GMBHInventors: Raphael Schlesinger, Jan-Ferenc Kischkat, Hermann Von Lilienfeld-Toal
-
Publication number: 20210148817Abstract: A method and apparatus for analyzing a substance is disclosed. An optical medium is arranged on a substance surface with at least one region of the optical medium surface in contact with the substance surface. An excitation light beam is emitted through the contacting region of the medium surface (to the substance surface. A measurement light beam is emitted through the optical medium to the contacting region of the medium surface such that the measurement light beam and the excitation light beam overlap on the interface of the optical medium and of the substance surface, on which the measurement light beam is reflected. A deflection of the reflected measurement light beam is detected in dependence on the wavelength of the excitation light beam. The substance is then analyzed based on the detected deflection of the measurement light beam in dependence on the wavelength of the excitation light beam.Type: ApplicationFiled: January 4, 2021Publication date: May 20, 2021Inventors: Werner Mäntele, Miguel Angel Pleitez Rafael, Tobias Lieblein, Otto Hertzberg, Alexander Bauer, Hermann Von Lilienfeld-Toal, Arne Küderle, Tabea Pfuhl
-
Patent number: 10883933Abstract: The invention relates to analyzing a substance. An optical medium is arrange on a substance surface with at least one region of the optical medium surface in contact with the substance surface. An excitation light beam is emitted through the contacting region of the medium surface to the substance surface. A measurement light beam is emitted through the optical medium to the contacting region of the medium surface such that the measurement light beam and the excitation light beam overlap on the interface of the optical medium and of the substance surface, on which the measurement light beam is reflected. A deflection of the reflected measurement light beam is detected in dependence on the wavelength of the excitation light beam. The substance is then analyzed based on the detected deflection of the measurement light beam in dependence on the wavelength of the excitation light beam.Type: GrantFiled: June 16, 2015Date of Patent: January 5, 2021Assignee: DiaMonTech AGInventors: Werner Mäntele, Miguel Angel Pleitez Rafael, Tobias Lieblein, Otto Hertzberg, Alexander Bauer, Hermann Von Lilienfeld-Toal, Arne Küderle, Tabea Pfuhl
-
Publication number: 20200333296Abstract: The disclosure relates to a photoacoustic sensor head for detecting acoustic signals which are excited in a sample by absorption of pulsed measuring light, comprising a contact prism which is transparent for the measuring light and has a sample contact surface, a detection surface arranged opposite the sample contact surface and a light entrance surface arranged adjacent to the detection surface, as well as means for radiating the measuring light through the light entrance surface in the direction of the sample contact surface, wherein a detection device comprising at least one sound transducer is arranged in a manner covering the detection surface, characterized in that those portions of the measuring light which are reflected at the sample contact surface are directed to the detection surface or to the light entrance surface, wherein a material layer containing a material which absorbs the measuring light is arranged between the detection surface and the detection device.Type: ApplicationFiled: October 26, 2018Publication date: October 22, 2020Inventors: Hermann VON LILIENFELD-TOAL, Jan-Ferenc KISCHKAT, Oliver SUPPLIE
-
Publication number: 20200326274Abstract: The invention relates to a photoacoustic method comprising a measurement light having a predefined wavelength range for determining properties of an inhomogeneous sample, the sample having a mean absorption length ? from the range of 1 to 100 micrometers for the predefined wavelength range, the method comprising the following steps: a) radiating at least one measurement light pulse having a predefined pulse duration and a predefined intensity onto a measurement area of the area F with ?F>>? in the surface of the inhomogeneous sample; b) detecting at least one pressure transient at the measurement area, the pressure transient resulting from the absorption of the at least one measurement light pulse in the inhomogeneous sample with production of a pressure wave propagating to the measurement area; c) calculating a value for the energy density absorbed by the sample during the pulse duration from the curve of the at least one pressure transient at the start and at the end of the at least one measurement liType: ApplicationFiled: October 26, 2018Publication date: October 15, 2020Inventors: Raphael SCHLESINGER, Jan-Ferenc KISCHKAT, Hermann VON LILIENFELD-TOAL
-
Publication number: 20170146455Abstract: The invention relates to analyzing a substance. An optical medium is arranged on a substance surface with at least one region of the optical medium surface in contact with the substance surface. An excitation light beam is emitted through the contacting region of the medium surface to the substance surface. A measurement light beam is emitted through the optical medium to the contacting region of the medium surface such that the measurement light beam and the excitation light beam overlap on the interface of the optical medium and of the substance surface, on which the measurement light beam is reflected. A deflection of the reflected measurement light beam is detected in dependence on the wavelength of the excitation light beam. The substance is then analyzed based on the detected deflection of the measurement light beam in dependence on the wavelength of the excitation light beam.Type: ApplicationFiled: June 16, 2015Publication date: May 25, 2017Inventors: Werner Mäntele, Miguel Angel Pleitez Rafael, Tobias Lieblein, Otto Hertzberg, Alexander Bauer, Hermann Von Lilienfeld-Toal, Arne Küderle, Tabea Pfuhl
-
Patent number: 7770473Abstract: The invention relates to a pressure sensor which can be incorporated into textile products. The pressure sensor includes a multilayer thread having a pressure sensitive layer exhibiting a pressure-dependent electrical resistance, and a conductive layer in contact with the pressure sensitive layer. Further, the sensor includes conductive threads in contact with the multilayer thread.Type: GrantFiled: November 23, 2006Date of Patent: August 10, 2010Assignee: Alpha-Fit GmbHInventors: Hermann Von Lilienfeld-Toal, Jean-Michel Asfour
-
Publication number: 20080307899Abstract: The invention relates to a pressure sensor which can be incorporated into textile products. The pressure sensor includes a multilayer thread having a pressure sensitive layer exhibiting a pressure-dependent electrical resistance, and a conductive layer in contact with the pressure sensitive layer. Further, the sensor includes conductive threads in contact with the multilayer thread.Type: ApplicationFiled: November 23, 2006Publication date: December 18, 2008Applicant: Alpha-fit=GmbhInventors: Hermann Von Lilienfeld-Toal, Jean-Michel Asfour