Patents by Inventor Christoph Vannahme
Christoph Vannahme 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).
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Publication number: 20240004175Abstract: The present disclosure relates to an intraoral scanning device including a light source configured for emitting light; a beam splitter configured for outputting linearly polarized light of a predefined orientation, wherein the beam splitter is arranged such that light from the light source is transmitted through the beam splitter; an image sensor configured for acquiring one or more images; and a light absorbing unit for minimizing stray light on the image sensor, said light absorbing unit arranged on a surface of the beam splitter. The present disclosure further relates to an optical system for an intraoral scanning device, said optical system configured for minimizing stray light in the system.Type: ApplicationFiled: June 30, 2023Publication date: January 4, 2024Applicant: 3SHAPE A/SInventors: Alexander Bruun CHRISTIANSEN, Christoph VANNAHME, Pétur Gordon HERMANNSSON
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Publication number: 20220148263Abstract: According to an embodiment, a method for generating a digital three-dimensional model representing development in dental condition for a tooth is disclosed. The method includes obtaining, at different timepoints, a first digital 3D model of a patient's set of teeth including first texture data and a second digital 3D model of the patient's set of teeth including second texture data. The first digital 3D model including the first texture data and second digital 3D model including the second texture data are placed in a common texture space by uniformizing texture. Lastly, the digital three-dimensional model representing development in dental condition is generated based on a comparison of the first texture data and the second texture data of corresponding regions in the first digital 3D model and the second digital 3D model placed in the common texture space.Type: ApplicationFiled: March 11, 2020Publication date: May 12, 2022Applicant: 3SHAPE A/SInventors: Christoph VANNAHME, Anders GAARDE, Anders Robert JELLINGGAARD, Bárður ÍSLEIFSSON, Stavroula MICHOU, Mathias Schärfe LAMBACH
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Publication number: 20220133447Abstract: The present disclosure provides a scanning system for scanning an object, including a scanner device including an image sensor for acquiring images; a mounting-interface for detachably mounting at least one of a plurality of types of scanning-tips, wherein each of the plurality of types scanning-tips is configured for providing light to the object in an illumination-mode that differs for each of the plurality of types of scanning-tips.Type: ApplicationFiled: February 25, 2020Publication date: May 5, 2022Applicant: 3SHAPE A/SInventors: Esben Rosenlund HANSEN, Anders Robert JELLINGGAARD, Peter Dahl Ejby JENSEN, Morten Vendelbo FOGED, Christoph VANNAHME, Michael PEDERSEN, Søren Greve JENSEN, Dmytro Chupryna OLEGOVYCH
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Publication number: 20220087519Abstract: Disclosed is an intra-oral scanning system including: a scanning device including at least a first magnetic induction coil; a replaceable scanning tip including at least a second magnetic induction coil; the scanning tip being removably connected to the scanning device; wherein the at least first and second magnetic induction coils are configured to provide power transfer and/or a communication signal between the scanning device and the scanning tip during operation of the scanning system.Type: ApplicationFiled: February 27, 2020Publication date: March 24, 2022Applicant: 3SHAPE A/SInventors: Morten Vendelbo FOGED, Christoph VANNAHME, Michael PEDERSEN, Søren Greve JENSEN, Dmytro Chupryna OLEGOVYCH, Esben Rosenlund HANSEN, Anders Robert JELLINGGAARD, Peter Dahl Ejby JENSEN, Kasper KROGH, Oliver SUNDBERG
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Patent number: 11148449Abstract: There is presented a method for geometrically modifying plasmonic structures on a support structure, such as for printing or recording, said method comprising changing a geometry specifically of plasmonic structures, wherein said changing the geometry is carried out by photothermally melting at least a portion of each of the plasmonic structures within the second plurality of plasmonic structures by irradiating, the plasmonic structures with incident electromagnetic radiation having an incident intensity in a plane of the second plurality of plasmonic structures, wherein said incident intensity is less than an incident intensity required to melt a film of a corresponding material and a corresponding thickness as the plasmonic structures within the second plurality of plasmonic structures.Type: GrantFiled: June 10, 2016Date of Patent: October 19, 2021Assignee: Danmarks Tekniske UniversitetInventors: Xiaolong Zhu, Anders Kristensen, Emil Højlund-Nielsen, Christoph Vannahme, Niels Asger Mortensen
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Publication number: 20210264600Abstract: The present disclosure provides a computer-implemented method for correlating at least one infrared 2D-image to a 3D-representation of at least a part of a tooth displayed in a graphical user-interface, of a hand-held scanning device, on a screen, comprising the steps of: obtaining a first set of 2D-images of the at least part of the tooth; forming a 3D-representation of the at least a part of the tooth from the first set of 2D-images; displaying, in the graphical user-interface, the 3D-representation; obtaining a second set of 2D-images, wherein the second set of 2D images are infrared 2D-images acquired within the at least part of the tooth; displaying, in the user-interface, at least one of the 2D-images from the second set of 2D-images; displaying, in the user-interface, a manipulator configured to change between 2D-images in the second set of 2D-images.Type: ApplicationFiled: June 14, 2019Publication date: August 26, 2021Applicant: 3SHAPE A/SInventors: Anders Robert JELLINGGAARD, Christoph VANNAHME, Mike VAN DER POEL, Karl-Josef HOLLENBECK, Anders GAARDE, Mads Brøkner CHRISTIANSEN
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Patent number: 10088428Abstract: A surface refractive index acquisition system for characterization of a sample is provided. The system comprises a grating device configured to receive the sample, and first and second grating regions. First and second grating periods are selected to provide optical resonances for light respectively in first and second wavelength bands. A light source is configured to illuminate part of the first and second grating regions simultaneously. An imaging system is configured to image light from the grating device and comprises an optical element focusing light in a transverse direction and being invariant in an orthogonal transverse direction, the optical element being oriented such that the longitudinal direction of the grating device is oriented to coincide with the invariant direction of the optical element, and an imaging spectrometer comprising an entrance slit having a longitudinal direction oriented to coincide with the invariant direction of the optical element.Type: GrantFiled: May 8, 2015Date of Patent: October 2, 2018Assignee: Danmarks Tekniske UniversitetInventors: Anders Kristensen, Christoph Vannahme, Martin Dufva
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Publication number: 20180178571Abstract: There is presented a method for geometrically modifying plasmonic structures on a support structure, such as for printing or recording, said method comprising changing a geometry specifically of plasmonic structures, wherein said changing the geometry is carried out by photothermally melting at least a portion of each of the plasmonic structures within the second plurality of plasmonic structures by irradiating, the plasmonic structures with incident electromagnetic radiation having an incident intensity in a plane of the second plurality of plasmonic structures, wherein said incident intensity is less than an incident intensity required to melt a film of a corresponding material and a corresponding thickness as the plasmonic structures within the second plurality of plasmonic structures.Type: ApplicationFiled: June 10, 2016Publication date: June 28, 2018Inventors: Xiaolong Zhu, Anders Kristensen, Emil Højlund-Nielsen, Christoph Vannahme, Niels Asger Mortensen
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Publication number: 20170269002Abstract: The invention relates to a surface refractive index scanning system for characterization of a sample. The system comprises a grating device for holding or receiving the sample, the device comprising at least a first grating region having a first grating width along a transverse direction, and a second grating region having a second grating width in the transverse direction. The first grating region and the second grating region are adjacent in the transverse direction, wherein the first grating region has a grating period ?1 in a longitudinal direction, and the second grating region has a grating period ?2 in the longitudinal direction, where the longitudinal direction is orthogonal to the transverse direction. A grating period spacing ??=?1-?2 is finite.Type: ApplicationFiled: May 8, 2015Publication date: September 21, 2017Inventors: Anders Kristensen, Christoph Vannahme, Martin Dufva
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Patent number: 8358884Abstract: A microoptical component for coupling a laser light to microresonators includes at least two microresonators, each having a form of an axially symmetric body disposed on a pedestal, and at least one waveguide for the laser light. The at least two microresonators are disposed on a first substrate having first side walls. The at least one waveguide is disposed on a second substrate having second side walls. The first side walls and the second side walls are fixedly joined.Type: GrantFiled: August 20, 2010Date of Patent: January 22, 2013Assignee: Karlsruher Institut fuer TechnologieInventors: Tobias Grossmann, Mario Hauser, Torsten Beck, Heinz Kalt, Christoph Vannahme, Timo Mappes
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Patent number: 8165430Abstract: An optical element includes a substrate having a passive waveguide and a laser waveguide disposed therein. The laser waveguide is in direct contact with the passive waveguide over a surface of contact so as to provide a butt coupling between the passive waveguide and the laser waveguide. A step extends between an upper edge of the passive waveguide and an upper edge of the laser waveguide. A covering is disposed on the passive waveguide so that the covering and the substrate together provide a cladding of lower refractive index around the passive waveguide and so that a hollow space is disposed between a lower edge of the covering and the upper edge of the laser waveguide.Type: GrantFiled: August 12, 2009Date of Patent: April 24, 2012Assignee: Forschungszentrum Karlsruhe GmbHInventors: Timo Mappes, Christoph Vannahme, Mauno Schelb
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Publication number: 20110044581Abstract: A microoptical component for coupling a laser light to microresonators includes at least two microresonators, each having a form of an axially symmetric body disposed on a pedestal, and at least one waveguide for the laser light. The at least two microresonators are disposed on a first substrate having first side walls. The at least one waveguide is disposed on a second substrate having second side walls. The first side walls and the second side walls are fixedly joined.Type: ApplicationFiled: August 20, 2010Publication date: February 24, 2011Applicant: KARLSRUHER INSTITUT FUER TECHNOLOGIEInventors: Tobias Grossman, Mario Hauser, Torsten Beck, Heinz Kalt, Christoph Vannahme, Timo Mappes
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Publication number: 20100040324Abstract: An optical element includes a substrate having a passive waveguide and a laser waveguide disposed therein. The laser waveguide is in direct contact with the passive waveguide over a surface of contact so as to provide a butt coupling between the passive waveguide and the laser waveguide. A step extends between an upper edge of the passive waveguide and an upper edge of the laser waveguide. A covering is disposed on the passive waveguide so that the covering and the substrate together provide a cladding of lower refractive index around the passive waveguide and so that a hollow space is disposed between a lower edge of the covering and the upper edge of the laser waveguide.Type: ApplicationFiled: August 12, 2009Publication date: February 18, 2010Applicant: Forschungszentrum Karlsruhe GmbHInventors: Timo Mappes, Christoph Vannahme, Mauno Schelb