Patents by Inventor Jens LANDER

Jens LANDER 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).

  • Lighting device and method for operating a lighting device
    Patent number: 9854636
    Abstract: The present invention refers to a lighting device (10) and a method of operating this lighting device (10). A lighting module (13) having a light element series connection (15) of several semiconductor light elements (14) is connected to the output (12) of a drive circuit (11). The control means (20) is provided which is configured to adapt a heating condition if a heating requirement is fulfilled. In the heating condition a heating means (26) is activated by the control means (20) to heat the lighting module. The heating requirement is fulfilled when the temperature (T) of the lighting module (13) drops down to a minimum temperature value (Tmin). In so doing an undesired increase of the forward voltage (Vf) of the light element series connection (15) can be avoided.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: December 26, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Manfred Abele, Martin Bulling, Jens Lander
  • LIGHTING DEVICE AND METHOD FOR OPERATING A LIGHTING DEVICE
    Publication number: 20160174322
    Abstract: The present invention refers to a lighting device (10) and a method of operating this lighting device (10). A lighting module (13) having a light element series connection (15) of several semiconductor light elements (14) is connected to the output (12) of a drive circuit (11). The control means (20) is provided which is configured to adapt a heating condition if a heating requirement is fulfilled. In the heating condition a heating means (26) is activated by the control means (20) to heat the lighting module. The heating requirement is fulfilled when the temperature (T) of the lighting module (13) drops down to a minimum temperature value (Tmin). In so doing an undesired increase of the forward voltage (Vf) of the light element series connection (15) can be avoided.
    Type: Application
    Filed: November 25, 2013
    Publication date: June 16, 2016
    Applicant: Panasonic Corporation
    Inventors: Manfred ABELE, Martin BULLING, Jens LANDER