Patents by Inventor Ralf Waldhäusl

Ralf Waldhäusl 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: 7239449
    Abstract: The invention relates to an illumination module for color display, preferably for use in data or video projectors as well as rear projection television sets, in which the light from at least three luminescent diodes (LEDs) or LED arrays of the base colors red, green and blue is collimated at a point provided for connection to a display unit and ranged on an optical axis of the illumination module. An LED or an LED array of a base color with a beam path (Lr) oriented in the direction of the display unit is arranged on the optical axis of the illumination module. For the purpose of color mixing, the LEDs and LED arrays of the other base colors are attached in such a way tat their beam paths (Lg, Lb) are laterally input in sequence under input angles (?, ?) of <90 degrees into the beam path (Lr) of the first base color.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: July 3, 2007
    Assignee: Sypro Optics GmbH
    Inventors: Armin Leitel, Ralf Waldhäusl, Peter Schreiber, Uwe Detlef Zeitner
  • Patent number: 6534011
    Abstract: The invention relates to an arrangement for the detection of biochemical or chemical substances using fluorescent light excitation, and to a process for its production, which can be used in a variety of fields, for example in biotechnology, in molecular medicine, in pharmaceuticals development and for the analysis or various chemical substances. A relatively simple structure is intended to provide the invention with the possibility of being able to carry out the detection of a large number of samples in a very short time with a high degree of accuracy. To that end, a laminar substrate is formed with a locally defined structure in order to detect different samples. Advantageously, on the detector side, a lens array designed according to the structuring can be used to project the fluorescent light from the different samples on to a detector array. It is, however, also possible to place a detector array matched to the structuring of the substrate on the substrate, or arrange it there.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: March 18, 2003
    Assignees: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V., Institut fur Physikalische Hochtechnologie
    Inventors: Wolfgang Karthe, Andreas Bräuer, Frank Eismann, Michael Köhler, Ralf Waldhäusl, Norbert Danz