Patents by Inventor Werner Herden

Werner Herden 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: 9153943
    Abstract: A method is described for producing a light source, in particular a light source for optically exciting a laser device, for example a laser device of a laser ignition system of an internal combustion engine, including a diode laser having a plurality of emitters and a fiber optic device. The fiber optic device includes a plurality of optical fibers, each fiber having a first end and a lateral surface area. The first ends are situated relative to the emitters in such a way that light generated by the emitters is injected into the first ends of the optical fibers. The optical fibers are situated in abutment along their lateral surface areas, at least in the region of the first ends of the optical fibers.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: October 6, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Klaus Stoppel, Werner Herden, Hans-Jochen Schwarz, Andreas Letsch
  • Patent number: 9136664
    Abstract: A method is for operating a pump light source having a diode laser, which provides a pump light, in particular for optical pumping of a laser device. The pump light source is activated in a first mode of operation such that the diode laser assumes a predefinable target temperature, which lies in a range of a maximum of the coefficient of absorption of the laser-active solid of the laser device. In a second mode of operation, following the first mode of operation, the pump light source is activated such that it generates pump light to build up a population inversion in the laser-active solid of the laser device. In a third mode of operation, following the second mode of operation, the pump light source is activated such that it generates pump light to activate a laser operation in the laser device.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: September 15, 2015
    Assignee: ROBERT BOSCH
    Inventors: Werner Herden, Manfred Vogel, Heiko Ridderbusch
  • Patent number: 9010292
    Abstract: A laser spark plug, in particular for an internal combustion engine of a motor vehicle, is described. A connection arrangement is provided in an end region of the laser spark plug facing the combustion chamber. The connection arrangement allow the laser spark plug to be connected to a prechamber module.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: April 21, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Werner Herden
  • Patent number: 8919313
    Abstract: An ignition laser includes a laser-active solid body, a housing, and a combustion chamber window. The heat value of the ignition laser is settable in accordance with the requirements of the internal combustion engine.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: December 30, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Martin Weinrotter, Werner Herden, Pascal Woerner, Juergen Raimann, Heiko Ridderbusch
  • Patent number: 8913643
    Abstract: A laser system for an ignition device of an internal combustion engine, in particular of a motor vehicle, having a first laser device and a second laser device situated downstream from the first laser device and optically connected to it, the first laser device being designed for generating pump light for optically pumping the second laser device. The first laser device has a reflecting means in an area which is optically connected to the second laser device, the reflecting arrangement being designed for reflecting radiation generated by the second laser device.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: December 16, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Werner Herden, Hans-Jochen Schwarz, Heiko Ridderbusch
  • Patent number: 8891567
    Abstract: A semiconductor laser module having a substrate and having at least one semiconductor laser situated on the substrate, the substrate having a layer structure which includes at least one primary layer which establishes a thermal contact with the semiconductor laser. The semiconductor laser is designed in such a way that it emits heat pulses having a minimum specific heat of approximately 3 mJ per mm2, preferably approximately 5 mJ/mm2, and having a pulse duration of approximately 100 ?s to approximately 2,000 ?s, and the primary layer has a layer thickness which is between approximately 200 ?m and approximately 2,000 ?m, preferably between approximately 400 ?m and approximately 2,000 ?m.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: November 18, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Werner Herden, Hans-Jochen Schwarz, Wolfgang Pittroff
  • Patent number: 8844491
    Abstract: A laser spark plug, e.g., for an internal combustion engine of a motor vehicle or a heavy-duty gas engine, has an antechamber for receiving an ignitable medium and a combustion chamber window which separates the antechamber from a part of the laser spark plug facing away from the combustion chamber. At least one flow-guiding element is provided in the antechamber and is situated in such a way that it deflects a fluid flow, which occurs in the antechamber and moves toward the combustion chamber window, into a radially inner direction.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: September 30, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Martin Weinrotter, Igor Orlandini, Werner Herden, Pascal Woerner, Juergen Raimann
  • Patent number: 8833323
    Abstract: An ignition laser, includes a laser-active solid-state body, a housing and a combustion chamber window, the housing having an inner sleeve and an outer sleeve. An insert is provided between the inner sleeve and the outer sleeve, the insert and the combustion chamber window being joined sealingly and integrally.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: September 16, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Weyl, Marco Gueth, Werner Herden, Karl-Heinz Nuebel, Franz Wetzl, Martin Weinrotter, Pascal Woerner, Stefan Henneck, Juergen Raimann, Joerg Engelhardt
  • Patent number: 8761222
    Abstract: A light source, e.g., for optical excitation of a laser device, includes a diode laser having a large number of emitters and a light-guiding device, the light-guiding device including a large number of optical fibers. Each fiber has a first end and a lateral surface, the first ends being arranged relative to the emitters in such a manner that light generated by the emitters is coupled into the first ends of the optical fibers, the optical fibers being arranged in abutting relationship along their lateral surfaces at least in the region of their first ends. The optical fibers are connected in the region of their first ends to a fiber support.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: June 24, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Stoppel, Werner Herden, Hans-Jochen Schwarz, Andreas Letsch
  • Patent number: 8712197
    Abstract: An ignition device, for an internal combustion engine of a motor vehicle, having a laser device for generating laser pulses, and having an optical fiber device which is at least optically connected to the laser device for supplying the laser device with pumped light. The optical fiber device is configured and situated in the region of the laser device such that radiation incident in the region of the laser device and/or in the region of a combustion chamber associated with the laser device is injected into the optical fiber device. The optical fiber device advantageously allow the radiation which is injected into the optical fiber device to be analyzed, using a detector which is remotely situated, without having to provide additional, separate optical fiber devices for the radiation to be analyzed, because is conducted directly via the same optical fiber that is already used for supplying pumped light.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: April 29, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Werner Herden, Martin Weinrotter, Pascal Woerner, Manfred Vogel, Juergen Raimann, Bernd Schmidtke, Heiko Ridderbusch
  • Patent number: 8701613
    Abstract: A laser ignition plug includes an antechamber into which the laser ignition plug is configured to irradiate laser radiation. The antechamber defines at least two overflow ducts that realize a fluid connection between the antechamber and a spatial region surrounding the antechamber. The at least two overflow ducts, with regard to one or more of (i) the radial spacing thereof from a longitudinal axis of the antechamber, (ii) the axial spacing thereof from an end region, which faces toward the combustion chamber, of the antechamber, and (iii) the alignment and/or geometry thereof, are arranged asymmetrically with respect to the longitudinal axis of the antechamber.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: April 22, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Werner Herden, Martin Weinrotter, Pascal Woerner, Juergen Raimann
  • Publication number: 20130199483
    Abstract: A laser ignition plug includes an antechamber into which the laser ignition plug is configured to irradiate laser radiation. The antechamber defines at least two overflow ducts that realize a fluid connection between the antechamber and a spatial region surrounding the antechamber. The at least two overflow ducts, with regard to one or more of (i) the radial spacing thereof from a longitudinal axis of the antechamber, (ii) the axial spacing thereof from an end region, which faces toward the combustion chamber, of the antechamber, and (iii) the alignment and/or geometry thereof, are arranged asymmetrically with respect to the longitudinal axis of the antechamber.
    Type: Application
    Filed: March 23, 2011
    Publication date: August 8, 2013
    Applicant: Robert Bosch GmbH
    Inventors: Werner Herden, Martin Weinrotter, Pascal Woener, Juergen Raimann
  • Patent number: 8494321
    Abstract: A diode laser having a beam-forming device and a method for producing it are described. The diode laser includes at least one diode laser bar, the diode laser bar having a multitude of emitters, the emitters being disposed next to each other in the direction of their longitudinal axes. The diode laser includes a beam-forming device assigned to the diode laser bar, for the laser beam emerging from the diode laser bar, the beam-forming device having a light-guide device having a plurality of fibers, into which the laser beam is coupled. The maximum thickness of the optical fibers at their end facing the diode laser bar is considerably smaller than their width.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: July 23, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Werner Herden, Bernd Schmidtke
  • Patent number: 8435807
    Abstract: A method for manufacturing a laser-active solid having a bonded passive Q-switch is provided. A plane-parallel first wafer plate may be manufactured from a laser-active material. A second plane-parallel wafer plate may be manufactured from a material that is suitable as a passive Q-switch. The first wafer plate and the second wafer plate may be bonded to form a wafer block, which may then be coated on both end faces with a resonator mirror. Subsequently, the wafer block may be separated into multiple passively Q-switched solid state lasers.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: May 7, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Werner Herden, Heiko Ridderbusch
  • Publication number: 20130014717
    Abstract: A laser ignition device for an internal combustion engine, in particular of a motor vehicle, having a laser device for generating laser pulses, and having a pumped light source for optically pumping the laser device. A photodiode system is situated in the area of an optical connection between the pumped light source and the laser device in such a way that pumped radiation generated by the pumped light source and the laser radiation generated by the laser device may each be irradiated at least partially onto a photodiode of the photodiode system.
    Type: Application
    Filed: December 3, 2010
    Publication date: January 17, 2013
    Inventors: Mathias Moenster, Werner Herden, Manfred Vogel
  • Patent number: 8355415
    Abstract: In a method for operating an ignition device for an internal combustion engine, in particular of a motor vehicle, having a laser device which includes a laser-active solid having a passive Q-switching system as well as an optical amplifier connected downstream from the passive Q-switching system (46), the laser device generates a laser pulse for radiating into a combustion chamber, and the ignition device having a pump light source which provides a pump light for the laser-active solid and the optical amplifier (70) of the laser device. The energy of the laser pulse is controlled by varying a wavelength of the pump light.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: January 15, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Werner Herden, Manfred Vogel, Heiko Ridderbusch
  • Publication number: 20130000597
    Abstract: A laser ignition device, particularly for an internal combustion engine, having a precombustion chamber and a laser device, which is developed to irradiate, particularly to focus, laser radiation onto at least two ignition points, lying in the precombustion chamber, that are different from each other. The laser device is developed to irradiate the laser radiation optionally onto one or more ignition points.
    Type: Application
    Filed: November 18, 2010
    Publication date: January 3, 2013
    Inventors: Martin Weinrotter, Werner Herden, Pascal Woerner, Juergen Raimann
  • Publication number: 20120304959
    Abstract: A laser spark plug having an antechamber is designed to irradiate laser radiation, which is guided and/or generated in the laser spark plug on at least two ignition points which are different from one another and are lying in the antechamber. The laser spark plug is designed to irradiate the laser radiation into the antechamber in such a way that a distance between at least one first ignition point and one second ignition point adjoining thereto is larger than a minimum distance between the first and/or the second ignition point(s) and an inner surface of the antechamber.
    Type: Application
    Filed: October 4, 2010
    Publication date: December 6, 2012
    Inventors: Martin Weinrotter, Werner Herden, Juergen Raimann, Andreas Letsch
  • Publication number: 20120304958
    Abstract: A laser ignition device for an internal combustion engine includes a laser spark plug having a laser-active solid and an outlet window for a laser pulse, and an antechamber. Certain sections of the antechamber are delimited by the outlet window and the antechamber has at least one opening to a combustion chamber of the internal combustion engine. A blow-in device is provided, an outlet opening of the blow-in device ending in the antechamber.
    Type: Application
    Filed: October 20, 2010
    Publication date: December 6, 2012
    Inventors: Werner Herden, Juergen Raimann
  • Publication number: 20120279469
    Abstract: A laser spark plug, e.g., for an internal combustion engine of a motor vehicle or a heavy-duty gas engine, has an antechamber for receiving an ignitable medium and a combustion chamber window which separates the antechamber from a part of the laser spark plug facing away from the combustion chamber. At least one flow-guiding element is provided in the antechamber and is situated in such a way that it deflects a fluid flow, which occurs in the antechamber and moves toward the combustion chamber window, into a radially inner direction.
    Type: Application
    Filed: September 27, 2010
    Publication date: November 8, 2012
    Inventors: Martin Weinrotter, Igor Orlandini, Werner Herden, Pascal Woerner, Juergen Raimann