Patents Assigned to Diehl Striftung & Co.
  • Patent number: 6203180
    Abstract: Proposed is a lighting arrangement which is mounted at or in the ceiling (4) preferably of an aeroplane cabin (2), comprising a plurality of punctiform light sources (8), wherein the punctiform light sources (8) have at least one light emitting diode (LED) (9) and are at least partially connected together in parallel or in series and are connected to at least one power supply unit (14). A Zener diode (15) is connected in parallel in the reverse direction in relation to each light emitting diode or light emitting diode group. The power supply unit (14) is such that it provides for a constant current flow. The light emitting diodes used are preferably white light emitting diodes.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: March 20, 2001
    Assignee: Diehl Striftung & Co.
    Inventor: Walter Fleischmann