Patents by Inventor Uwe Frost

Uwe Frost 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).

  • Light signal
    Patent number: 8702282
    Abstract: A light signal contains a semiconductor light source and a convex lens system for representing signal aspects, especially on rail-bound traffic routes. In order to eliminate the need for monochrome semiconductor light sources, the semiconductor light source is a white point light source. A signal aspect-specific color filter is provided in the aperture region of the point light source.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: April 22, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joerg Birkholz, Rolf Eckl, Uwe Frost, Kay Koester, Zeljko Marincic, Norbert Poepplow
  • LIGHT SIGNAL
    Publication number: 20120162997
    Abstract: A light signal contains a semiconductor light source and an optical system for representing signal aspects (properties), especially on rail-bound traffic routes. In order to obtain the advantageous properties of filament light signals, especially with respect to the beam spread in horizontal direction, the semiconductor light source is configured as a point light source, especially as an individual LED—light-emitting diode—or as an individual HLED—high current LED—and the optical system has an axially symmetric cylindrical lens and a rotationally symmetric convex lens, especially a Fresnel lens.
    Type: Application
    Filed: July 27, 2010
    Publication date: June 28, 2012
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Joerg Birkholz, Rolf Eckl, Uwe Frost, Kay Koester, Zeljko Marincic, Norbert Poepplow
  • LIGHT SIGNAL
    Publication number: 20120153314
    Abstract: A light signal contains a semiconductor light source and a convex lens system for representing signal aspects, especially on rail-bound traffic routes. In order to eliminate the need for monochrome semiconductor light sources, the semiconductor light source is a white point light source. A signal aspect-specific color filter is provided in the aperture region of the point light source.
    Type: Application
    Filed: July 27, 2010
    Publication date: June 21, 2012
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Joerg Birkholz, Rolf Eckl, Uwe Frost, Kay Marincic, Zeljko Marincic, Norbert Poepplow