Patents by Inventor Steffen Holtz

Steffen Holtz 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: 9506614
    Abstract: The invention relates to a headlight lens (2, 2B, 2C, 2D, 2E, 2F) for a vehicle headlight (1) comprising a light source (10), in particular for a motor vehicle headlight, the headlight lens (2, 2B, 2C, 2D, 2E, 2F) comprising a lens body (3, 3B, 3C, 3D, 3E, 3F) composed of a transparent material which is moulded (blank-pressed) on both sides and which comprises an optically active surface (5, 5B, 5C, 5D, 5E, 5F), that is to face the light source (10) and an optically active surface (4, 4B, 4C, 4D, 4E, 4F) that faces away from the light source (10), the optically active surface (4, 4B, 4C, 4D, 4E, 4F) that faces away from the light source (10) being convexly curved, the optically active surface (5, 5B, 5C, 5D, 5E, 5F) that is to face the light source (10) being curved, and the headlight lens (2, 2B, 2C, 2D, 2E, 2F) comprising a lens rim (6, 6B, 6C, 6D, 6E, 6F) externally on the optically active surface (5, 5B, 5C, 5D, 5E, 5F) that is to face the light source (10), the volume of which lens rim (6, 6B, 6C, 6D, 6E
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: November 29, 2016
    Assignee: Docter Optics GmbH
    Inventors: Steffen Holtz, Bernhard Breeger
  • Patent number: 8342726
    Abstract: A vehicle headlamp includes a first light source, at least one second light source and an integrally designed, transparent shaped part. The shaped part includes a first optical structure for orienting light radiated by the first light source and at least one second optical structure for orienting light radiated by the second light source. The first optical structure and the second optical structure each have a continuously curved surface or a continuous, curved surface with an extent of at least in each case half a centimeter, in particular one centimeter, in two orthogonal directions.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: January 1, 2013
    Assignee: Docter Optics GmbH
    Inventors: Jens Fischer, Steffen Holtz
  • Publication number: 20100290242
    Abstract: The invention relates to a vehicle headlamp (1), in particular motor vehicle headlamp (1), with a first light source (10), with at least one second light source (24) and with an integrally designed, transparent shaped part (2), wherein the shaped part (2) comprises a first optical structure (3) for orienting light radiated by the first light source (10) and at least one second optical structure (4) for orienting light radiated by the second light source (24), and wherein the first optical structure (3) and the second optical structure (4) each have a continuously curved surface or a continuous, curved surface with an extent of at least in each case half a centimetre, in particular one centimetre, in two orthogonal directions.
    Type: Application
    Filed: August 8, 2006
    Publication date: November 18, 2010
    Inventors: Jens Fischer, Steffen Holtz
  • Publication number: 20090296420
    Abstract: The invention relates to a headlight lens (2, 2B, 2C, 2D, 2E, 2F) for a vehicle headlight (1) comprising a light source (10), in particular for a motor vehicle headlight, the headlight lens (2, 2B, 2C, 2D, 2E, 2F) comprising a lens body (3, 3B, 3C, 3D, 3E, 3F) composed of a transparent material which is moulded (blank-pressed) on both sides and which comprises an optically active surface (5, 5B, 5C, 5D, 5E, 5F), that is to face the light source (10) and an optically active surface (4, 4B, 4C, 4D, 4E, 4F) that faces away from the light source (10), the optically active surface (4, 4B, 4C, 4D, 4E, 4F) that faces away from the light source (10) being convexly curved, the optically active surface (5, 5B, 5C, 5D, 5E, 5F) that is to face the light source (10) being curved, and the headlight lens (2, 2B, 2C, 2D, 2E, 2F) comprising a lens rim (6, 6B, 6C, 6D, 6E, 6F) externally on the optically active surface (5, 5B, 5C, 5D, 5E, 5F) that is to face the light source (10), the volume of which lens rim (6, 6B, 6C, 6D, 6E
    Type: Application
    Filed: August 18, 2006
    Publication date: December 3, 2009
    Inventors: Steffen Holtz, Bernhard Breeger
  • Patent number: 7303319
    Abstract: The present invention relates to a headlight lens for a vehicle headlight having a light source, in particular for a motor vehicle headlight, as well as a vehicle headlight, in particular a motor vehicle headlight, having a light source and a headlight lens. The headlight lens including a lens body is made of a transparent material, which includes a surface to face the light source and a surface to face away from the light source. The headlight lens having an emblem, on the surface to face the light source, having a basal surface, which, with respect to the surface to face the light source or with respect to an optical axis of the headlight lens, is sloped in such a way that light entering into the lens body through the surface to face away from the light source parallel to the optical axis of the headlight lens is subject to a total reflection at the basal surface.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: December 4, 2007
    Assignee: Doctor Optics GmbH
    Inventors: Steffen Holtz, Alois Willke
  • Publication number: 20050207164
    Abstract: The present invention relates to a headlight lens for a vehicle headlight having a light source, in particular for a motor vehicle headlight, as well as a vehicle headlight, in particular a motor vehicle headlight, having a light source and a headlight lens. The headlight lens including a lens body is made of a transparent material, which includes a surface to face the light source and a surface to face away from the light source. The headlight lens having an emblem, on the surface to face the light source, having a basal surface, which, with respect to the surface to face the light source or with respect to an optical axis of the headlight lens, is sloped in such a way that light entering into the lens body through the surface to face away from the light source parallel to the optical axis of the headlight lens is subject to a total reflection at the basal surface.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 22, 2005
    Inventors: Steffen Holtz, Alois Willke
  • Patent number: 6598580
    Abstract: An insert filter 10 for cleaning a gas stream, particularly for the intake air of an internal combustion engine or an air-conditioning unit, which includes a filter frame 11, a filter element 12 placed in the filter frame 11, and a shaft cover 13 and which is placed in the shaft 14 of a duct system 15 that guides the gas stream such that an unfiltered side 16 is separated from a clean side 17 by the filter element 12 and the filter frame 11. The shaft cover 13 closes a shaft opening 24 through which the insert filter 10 is inserted in the shaft 14. The filter frame 11 is connected to the shaft cover 13 so that the filter frame 11 can be removed from the shaft 14 without any need for additional removal aids by simply pulling on the shaft cover 13.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: July 29, 2003
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventors: Christoph Baumann, Timo Dirnberger, Steffen Holtz, Daniel Hoppmann, Ulrich Huengsberg, Volker Hueppmeier, Hans-Juergen Isensee, Stefan Maier, Kai Mierau, Hans-Peter Scholl, Stefan Weiss
  • Publication number: 20020029549
    Abstract: An insert filter 10 for cleaning a gas stream, particularly for the intake air of an internal combustion engine or an air-conditioning unit, which includes a filter frame 11, a filter element 12 placed in the filter frame 11, and a shaft cover 13 and which is placed in the shaft 14 of a duct system 15 that guides the gas stream such that an unfiltered side 16 is separated from a clean side 17 by the filter element 12 and the filter frame 11. The shaft cover 13 closes a shaft opening 24 through which the insert filter 10 is inserted in the shaft 14. The filter frame 11 is connected to the shaft cover 13 so that the filter frame 11 can be removed from the shaft 14 without any need for additional removal aids by simply pulling on the shaft cover 13.
    Type: Application
    Filed: July 16, 2001
    Publication date: March 14, 2002
    Inventors: Christoph Baumann, Timo Dirnberger, Steffen Holtz, Daniel Hoppmann, Ulrich Huengsberg, Volker Hueppmeier, Hans-Juergen Isensee, Stefan Maier, Kai Mierau, Hans-Peter Scholl, Stefan Weiss