Patents by Inventor Carsten Hohmann
Carsten Hohmann 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: 20240125444Abstract: A lighting device for a motor vehicle, wherein the lighting device has a circuit board with a multiplicity of light-emitting diodes arranged thereon, a transparent optical layer, and a reflector element, wherein the reflector element is arranged between the circuit board and the optical layer, wherein the reflector element has multiple segments into which the reflector element is subdivided, wherein a segment is associated with each light-emitting diode so that light emitted by the light-emitting diodes can be reflected by the reflector element and can pass through the optical layer. Two light-emitting diodes are arranged in a segment. In addition, a lighting system and a motor vehicle are provided.Type: ApplicationFiled: October 14, 2023Publication date: April 18, 2024Applicant: HELLA GmbH & Co. KGaAInventors: Mathias DRUEPPEL, Carsten HOHMANN, Marc KAUP, Alfons MICHAELIS, Martin MUEGGE, Diana MUNDT, Thomas RETTWEILER, Jacek ROSLAK, Christian SCHMIDT, Dietmar SCHROEDER, Martin VOLLMER
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Publication number: 20230304643Abstract: An illumination apparatus for a motor vehicle comprises: a light source, an optical waveguide with an incident surface and a reflective region; and a hologram arranged on or in the optical waveguide. The illumination apparatus is configured such that light emitted by the light source enters the incident surface of the optical waveguide in the direction of the reflective region, is reflected by the reflective region inside the optical waveguide in the direction of the hologram and interacts with the hologram. The average distance between the light source and the incident surface is at least half as great as the average distance between the reflective region and the hologram.Type: ApplicationFiled: May 30, 2023Publication date: September 28, 2023Inventors: Martin Mügge, Carsten Hohmann, Alfons Michaelis, Christoph Erler, Siemen Kühl, Petr Vojtisek
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Patent number: 11193646Abstract: A lighting device for vehicles, in particular a signal light, with a light source for emitting a light beam and an optical unit associated with the light source for producing a predetermined light function, the optical unit having a holographic element and a lens arranged in the main emission direction in front of the holographic element, the holographic element comprising such a diffraction structure that the light beam emitted from the light source onto the holographic element is varied according to a predetermined illumination pattern such that the holographic light beam lights an illumination surface of the lens to generate the light function.Type: GrantFiled: December 18, 2015Date of Patent: December 7, 2021Assignees: Hella KGaA Hueck & Co., Covestro Deutschland AGInventors: Martin Muegge, Carsten Hohmann, Rainer Hagen, Guenther Walze, Thomas Faecke
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Patent number: 10838117Abstract: A reflector for vehicles includes a reflective surface that contains an optical element to reflect light incident on the optical element according to specific reflection characteristics. The reflective surface is designed as a hologram element which has a grating structure in such a way that light incident on the hologram element is reflected according to the specific reflection characteristics.Type: GrantFiled: June 12, 2017Date of Patent: November 17, 2020Assignee: Hella KGaA Hueck & Co.Inventors: Carsten Hohmann, Martin Muegge
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Patent number: 10451242Abstract: A lighting device for vehicles having a laser light source and an optical unit which is associated with the laser light source and which generates a predetermined light distribution. A diffusion element is arranged between the laser light source and the optical unit for reducing and/or preventing a speckle pattern in the light distribution.Type: GrantFiled: June 12, 2017Date of Patent: October 22, 2019Assignee: Hella KGaA Hueck & Co.Inventors: Bernd Giepen, Carsten Hohmann, Tobias Irmscher, Martin Muegge
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Patent number: 9915406Abstract: An illumination device for vehicles, in particular rear light, with a light-emitting unit to generate a predetermined light function. The device comprises a plurality of light sources and an optical unit. The optical unit comprises a light guide with means for the deflection of the light coupled in the same, and a retroreflective unit to generate a retroreflective function. The light guide is designed as a low-profile light guide, which is arranged in the main radiation direction in front of the retroreflective unit. The means for deflecting the light are distributed on or in the low-profile light guide such that the first light beam emitted from the light source and coupled into a narrow side of the low-profile light guide is coupled out at a front flat side of the low-profile light guide to produce the predetermined light function.Type: GrantFiled: October 1, 2014Date of Patent: March 13, 2018Assignee: Hella KGaA Hueck & Co.Inventors: Carsten Hohmann, Martin Mügge, Antti Mäkiranta
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Publication number: 20170327033Abstract: A lighting device for vehicles, in particular a signal light, with a light source for emitting a light beam and an optical unit associated with the light source for producing a predetermined light function, the optical unit having a holographic element and a lens arranged in the main emission direction in front of the holographic element, the holographic element comprising such a diffraction structure that the light beam emitted from the light source onto the holographic element is varied according to a predetermined illumination pattern such that the holographic light beam lights an illumination surface of the lens to generate the light function.Type: ApplicationFiled: December 18, 2015Publication date: November 16, 2017Inventors: Martin Muegge, Carsten Hohmann, Rainer Hagen, Guenther Walze, Thomas Faecke
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Publication number: 20170276313Abstract: A lighting device for vehicles having a laser light source and an optical unit which is associated with the laser light source and which generates a predetermined light distribution. A diffusion element is arranged between the laser light source and the optical unit for reducing and/or preventing a speckle pattern in the light distribution.Type: ApplicationFiled: June 12, 2017Publication date: September 28, 2017Applicant: Hella KGaA Hueck & Co.Inventors: Bernd GIEPEN, Carsten HOHMANN, Tobias IRMSCHER, Martin MUEGGE
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Publication number: 20170276843Abstract: A reflector for vehicles includes a reflective surface that contains an optical element to reflect light incident on the optical element according to specific reflection characteristics. The reflective surface is designed as a hologram element which has a grating structure in such a way that light incident on the hologram element is reflected according to the specific reflection characteristics.Type: ApplicationFiled: June 12, 2017Publication date: September 28, 2017Applicant: Hella KGaA Hueck & Co.Inventors: Carsten HOHMANN, Martin MUEGGE
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Publication number: 20160230950Abstract: An illumination device for vehicles, in particular rear light, with a light-emitting unit to generate a predetermined light function. The device comprises a plurality of light sources and an optical unit. The optical unit comprises a light guide with means for the deflection of the light coupled in the same, and a retroreflective unit to generate a retroreflective function. The light guide is designed as a low-profile light guide, which is arranged in the main radiation direction in front of the retroreflective unit. The means for deflecting the light are distributed on or in the low-profile light guide such that the first light beam emitted from the light source and coupled into a narrow side of the low-profile light guide is coupled out at a front flat side of the low-profile light guide to produce the predetermined light function.Type: ApplicationFiled: October 1, 2014Publication date: August 11, 2016Inventors: Carsten Hohmann, Martin Mügge, Antti Mäkiranta
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Patent number: 9255678Abstract: A lighting appliance for vehicles with a light unit includes a light source and a light guide assigned to the light source for the creation of a given light function, wherein the light guide is embodied as a rod-shaped light guide with a punctiform surface for the coupling-out of light or as a flat light guide with a line-shaped or a sheet-like surface for the coupling-out of light, wherein for the creation of the light function, a light surface magnifying unit is provided, which comprises a light source and a mask template unit for the generation of an illumination pattern from a light beam sent from a light source onto a projection screen.Type: GrantFiled: January 21, 2014Date of Patent: February 9, 2016Assignee: Hella KGaA Hueck & Co.Inventors: Carsten Hohmann, Martin Mügge
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Publication number: 20140286030Abstract: A lighting appliance for vehicles with a light unit includes a light source and a light guide assigned to the light source for the creation of a given light function, wherein the light guide is embodied as a rod-shaped light guide with a punctiform surface for the coupling-out of light or as a flat light guide with a line-shaped or a sheet-like surface for the coupling-out of light, wherein for the creation of said light function, a light surface magnifying unit is provided, which comprises a light source and a mask template unit for the generation of an illumination pattern from a light beam sent from a light source onto a projection screen.Type: ApplicationFiled: January 21, 2014Publication date: September 25, 2014Inventors: Carsten Hohmann, Martin Mügge
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Publication number: 20140056020Abstract: A light unit for a motor vehicle with an illuminated area through which visible light can be emitted. The illuminated area is formed by a first and a second planar OLED-element and the first OLED-element can be controlled independent from the second OLED-element, thus a segmenting of the illuminated area occurs.Type: ApplicationFiled: August 21, 2013Publication date: February 27, 2014Applicant: Hella KGaA Hueck & Co.Inventors: Carmen Bungenstock, Carsten Hohmann, Martin Mügge, Alfons Puls, Thomas Vieregge
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Patent number: 7321822Abstract: Alternating torque {tilde over (M)}kv(?) or the mean indicated pressure Pml is to be determined from the angular velocity ? from the engine speed, for engine management, for example. Charge pressure compensation (5) must be effected in order for a usable result to be obtained. By preference sensor wheel error compensation (2) and inertial force compensation (4) are also effected. The mean indicated pressure Pml is obtained from the alternating torque {tilde over (M)}v(?) in a characteristic diagram.Type: GrantFiled: November 5, 2003Date of Patent: January 22, 2008Assignee: Audi AGInventors: Thorsten Schmidt, Winfried Schultalbers, Henning Rasche, Hermann Fehrenbach, Kurt Bluhm, Carsten Hohmann
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Patent number: 7114380Abstract: A method is described for determining geometric errors of a rotary encoder with a plurality of increments that can be registered by a sensor, encoder being applied to an internal combustion engine and being mounted on a shaft which can be directly or indirectly set in motion by gas moments and moments of inertia. The invention profile of the angular velocity ?mess(t) of the shaft is measured for a time-variable shaft speed, that the shaft speed signals obtained during the measurement are averaged and that the averaging process is carried out within a shaft speed range in which the effects of the gas moments and moments of inertia, which act on the shaft in the internal combustion engine, on the angular velocity of the crankshaft cancel each other out statistically, at least to a great extent and that geometric errors of the rotary encoder are determined on the basis of the profile of the angular velocity ?mess(t).Type: GrantFiled: January 15, 2003Date of Patent: October 3, 2006Assignee: Fraunhofer Gesellschaft zur Förderung der Angewandten Forschung E.V.Inventors: Hermann Fehrenbach, Carsten Hohmann
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Publication number: 20060142929Abstract: Alternating torque {tilde over (M)}kv(?) or the mean indicated pressure Pml is to be determined from the angular velocity ? from the engine speed, for engine management, for example. Charge pressure compensation (5) must be effected in order for a usable result to be obtained. By preference sensor wheel error compensation (2) and inertial force compensation (4) are also effected. The mean indicated pressure Pml is obtained from the alternating torque {tilde over (M)}v(?) in a characteristic diagram.Type: ApplicationFiled: November 5, 2003Publication date: June 29, 2006Applicants: Audi AG, IAV GmbH, Fraunhofer Gesellschaft e.V.Inventors: Thorsten Schmidt, Winfried Schultalbers, Henning Raacha, Hermann Fehrenbach, Kurt Bluhm, Carsten Hohmann
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Publication number: 20050120784Abstract: A method is described for determining geometric errors of a rotary encoder with a plurality of increments that can be registered by a sensor, encoder being applied to an internal combustion engine and being mounted on a shaft which can be directly or indirectly set in motion by gas moments and moments of inertia. The invention profile of the angular velocity ?mess(t) of the shaft is measured for a time-variable shaft speed, that the shaft speed signals obtained during the measurement are averaged and that the averaging process is carried out within a shaft speed range in which the effects of the gas moments and moments of inertia, which act on the shaft in the internal combustion engine, on the angular velocity of the crankshaft cancel each other out statistically, at least to a great extent and that geometric errors of the rotary encoder are determined on the basis of the profile of the angular velocity ?mess(t).Type: ApplicationFiled: January 15, 2003Publication date: June 9, 2005Inventors: Hermann Fehrenbach, Carsten Hohmann
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Patent number: D906854Type: GrantFiled: June 17, 2019Date of Patent: January 5, 2021Assignee: Hella GmbH & Co. KGaAInventors: Florin Ovidiu Matei, Ovidiu-Petru Balaj, George Cristian Oproiu, Remus Pompiliu Dinu, Adrian Emanuel Maghet, Adrian Ciprian Firu, Gabriel Sirbu, Ovidiu Cristian Pardut, Marius Nicolae Dragomir, Dragos-Andrei Blagoi, Thomas Rettweiler, Carsten Hohmann