Patents by Inventor Philipp Nicolas Zeller

Philipp Nicolas Zeller 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 source lifetime extension in an optical system
    Patent number: 9322765
    Abstract: An optical system comprising a light source comprising a plurality of light emitting elements (LEEs) is presented. The light source is mounted on the same substrate or chip board so that the LEEs are in thermal contact with each other such as to enable thermic conduction and heat transfer between the LEEs. The system is switchable between light source modes in which different light emitting elements or a different number of light emitting elements is switched in an on mode and in a down mode respectively. In all light source modes, one or more light emitting elements, such as those with longer expected lifetime, remain in the on mode, while one or more light emitting elements, such as those with shorter expected lifetime, may be switched in the down mode.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: April 26, 2016
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Rik Harbers, Philipp Nicolas Zeller
  • LIGHT SOURCE LIFETIME EXTENSION IN AN OPTICAL SYSTEM
    Publication number: 20140291557
    Abstract: An optical system comprising a light source comprising a plurality of light emitting elements (LEEs) is presented. The light source is mounted on the same substrate or chip board so that the LEEs are in thermal contact with each other such as to enable thermic conduction and heat transfer between the LEEs. The system is switchable between light source modes in which different light emitting elements or a different number of light emitting elements is switched in an on mode and in a down mode respectively. In all light source modes, one or more light emitting elements, such as those with longer expected lifetime, remain in the on mode, while one or more light emitting elements, such as those with shorter expected lifetime, may be switched in the down mode.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 2, 2014
    Inventors: Rik Harbers, Philipp Nicolas Zeller