Patents by Inventor Wolfgang Pohlmann
Wolfgang Pohlmann 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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Patent number: 11808421Abstract: An illuminating device for a motor vehicle, in particular, a high-resolution headlamp for a motor vehicle, comprising an LED light source having a plurality of LED elements, whose light outlet surfaces are used for the targeted generation of pixels of a light distribution generated in the outer region of the motor vehicle during the operation of the illuminating device, the light outlet surfaces being arranged in a matrix-like manner in a first direction and in a second direction perpendicular to the first direction, the first direction corresponding to the horizontal direction in the light distribution generated in the outer region of the motor vehicle, and the second direction corresponding to the vertical direction in the light distribution generated in the outer region of the motor vehicle, and the light outlet surfaces at least of a plurality of LED elements each being larger in the first direction than in the second direction.Type: GrantFiled: May 27, 2022Date of Patent: November 7, 2023Assignee: Hella GmbH & Co. KGaAInventors: Michael Kleinkes, Ingo Moellers, Wolfgang Pohlmann, Carsten Wilks
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Publication number: 20220290827Abstract: An illuminating device for a motor vehicle, in particular, a high-resolution headlamp for a motor vehicle, comprising an LED light source having a plurality of LED elements, whose light outlet surfaces are used for the targeted generation of pixels of a light distribution generated in the outer region of the motor vehicle during the operation of the illuminating device, the light outlet surfaces being arranged in a matrix-like manner in a first direction and in a second direction perpendicular to the first direction, the first direction corresponding to the horizontal direction in the light distribution generated in the outer region of the motor vehicle, and the second direction corresponding to the vertical direction in the light distribution generated in the outer region of the motor vehicle, and the light outlet surfaces at least of a plurality of LED elements each being larger in the first direction than in the second direction.Type: ApplicationFiled: May 27, 2022Publication date: September 15, 2022Applicant: HELLA GmbH & Co. KGaAInventors: Michael KLEINKES, Ingo MOELLERS, Wolfgang POHLMANN, Carsten WILKS
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Patent number: 10995922Abstract: A lighting device for a vehicle, in particular headlights for a vehicle, having a plurality of light sources, from which light is emitted during operation of the lighting device, projection optics for projecting the light, and a generator for generating a light distribution in the exterior of the vehicle, which has a soft transition in the vertical direction from a central region to the near field and/or the far field of the light distribution. The generator has a plurality of converters which change the wavelength spectrum of the light emitted from the light sources. The lighting device being designed in such a way that during operation of the lighting device, at least one first region of at least one of the converters is subjected to a greater luminous flux density of the light emitted from the light sources as a second region of the at least one converter.Type: GrantFiled: May 21, 2020Date of Patent: May 4, 2021Assignee: Hella GmbH & Co. KGaAInventors: Ingo Moellers, Sebastian Nordhoff, Wolfgang Pohlmann, Wolf Alexander Quitsch
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Publication number: 20200370725Abstract: A lighting device for a vehicle, in particular headlights for a vehicle, having a plurality of light sources, from which light is emitted during operation of the lighting device, projection optics for projecting the light, and a generator for generating a light distribution in the exterior of the vehicle, which has a soft transition in the vertical direction from a central region to the near field and/or the far field of the light distribution. The generator has a plurality of converters which change the wavelength spectrum of the light emitted from the light sources. The lighting device being designed in such a way that during operation of the lighting device, at least one first region of at least one of the converters is subjected to a greater luminous flux density of the light emitted from the light sources as a second region of the at least one converter.Type: ApplicationFiled: May 21, 2020Publication date: November 26, 2020Applicant: HELLA GmbH & Co. KGaAInventors: Ingo MOELLERS, Sebastian NORDHOFF, Wolfgang POHLMANN, Wolf Alexander QUITSCH
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Patent number: 9379812Abstract: In one embodiment, a media access controller includes first and second optical line terminals with a receiver for adjacent first and second wavelength ranges, respectively, and an optical network unit with a transmitter having a transmitter wavelength which drifts between the first and the second wavelength range. The media access controller is configured to assign the optical network unit to the first and the second optical line terminals, such that an optical burst transmitted by the optical network unit is received by the first optical line terminal and the second optical line terminal. The media access controller is configured to determine first and second qualities of the optical burst received by the first and second optical line terminals, respectively, and to determine an estimate of the transmitter wavelength based on the first quality and the second quality.Type: GrantFiled: January 31, 2012Date of Patent: June 28, 2016Assignee: Alcatel LucentInventors: Wolfgang Pöhlmann, Thomas Pfeiffer, Ronald Heron
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Publication number: 20150219298Abstract: A headlamp for vehicles with a semiconductor-based light source arrangement including a number of chips with a matrix-type arrangement of the light sources for the forming of a light source group. Neighboring light sources have an equidistant distance relative to one another. The headlamp also includes an optics unit for the projection of the light sources to form a given light distribution. At least two light source groups are arranged on a common carrier, and a group distance between neighboring light source groups is larger than the distance between the neighboring light sources of the respective light source groups. The light source groups are assigned a common optics unit, and the optics unit being configured so that border light sources of neighboring light sources groups arranged on edges of the respective neighboring light source groups and facing one another are projected to form overlapping light spots.Type: ApplicationFiled: December 5, 2014Publication date: August 6, 2015Inventors: Ingo Möllers, Wolfgang Pohlmann, Thomas Vieregge
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Publication number: 20130308937Abstract: In one embodiment, a media access controller includes first and second optical line terminals with a receiver for adjacent first and second wavelength ranges, respectively, and an optical network unit with a transmitter having a transmitter wavelength which drifts between the first and the second wavelength range. The media access controller is configured to assign the optical network unit to the first and the second optical line terminals, such that an optical burst transmitted by the optical network unit is received by the first optical line terminal and the second optical line terminal. The media access controller is configured to determine first and second qualities of the optical burst received by the first and second optical line terminals, respectively, and to determine an estimate of the transmitter wavelength based on the first quality and the second quality.Type: ApplicationFiled: January 31, 2012Publication date: November 21, 2013Applicant: ALCATEL-LUCENTInventors: Wolfgang Pöhlmann, Thomas Pfeiffer, Ronald Heron
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Patent number: 8292481Abstract: The invention relates to a vehicle headlamp containing a multiple number of LED light sources and at least one optical unit upstream of the LED sources, whereby the LED light sources are arranged in groups with one group of LED light sources to generate a specified light distribution, whereby the LED light sources within one group of LED light sources are of equal size, whereby the dimensions of the LED light sources within one group of LED light sources and/or the optical unit demonstrate the illumination characteristics needed to ensure that the group of LED light sources completely fulfills at least one specified lighting function in the vehicle environment, whereby light spots are produced with a vertical and/or horizontal critical angle within the range of between 0.2° and 1°.Type: GrantFiled: November 5, 2008Date of Patent: October 23, 2012Assignee: Hella KGaA Hueck and CompanyInventors: Mirco Götz, Franz-Josef Kalze, Michael Kleinkes, Thomas Vieregge, Wolfgang Pohlmann
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Publication number: 20100264824Abstract: The invention relates to a vehicle headlamp containing a multiple number of LED light sources and at least one optical unit upstream of the LED sources, whereby the LED light sources are arranged in groups with one group of LED light sources to generate a specified light distribution, whereby the LED light sources within one group of LED light sources are of equal size, whereby the dimensions of the LED light sources within one group of LED light sources and/or the optical unit demonstrate the illumination characteristics needed to ensure that the group of LED light sources completely fulfills at least one specified lighting function in the vehicle environment, whereby light spots are produced with a vertical and/or horizontal critical angle within the range of between 0.2° and 1°.Type: ApplicationFiled: November 5, 2008Publication date: October 21, 2010Applicant: HELLA KGAA HUECK & CO.Inventors: Mirco Götz, Franz-Josef Kalze, Michael Kleinkes, Thomas Vieregge, Wolfgang Pohlmann
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Patent number: 6091266Abstract: Circuits using differential logic are employed in high-speed optical communications systems. An essential problem in the design of large-scale integrated circuits for this purpose is the control of undesired heat generation, so that the circuits should have low power consumption. According to the invention, a reduction in power consumption is achieved by reducing the number of stages connected in parallel with respect to the power supply. To accomplish this, part of the parallel-connected stages are connected in series with the remaining part of the parallel-connected stages, so that the total number of parallel branches is reduced.Type: GrantFiled: September 10, 1998Date of Patent: July 18, 2000Assignee: AlcatelInventor: Wolfgang Pohlmann