Patents by Inventor István Csányi

István Csányi 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).

  • Projector lamp emitting color light
    Patent number: 4870318
    Abstract: The invention refers to a projector lamp, which comprises a light source (3), a mirror (1) arranged in a space relationship to the light source (3) for projecting the light emitted by the light source (3) in a predetermined direction, the mirror (1) having a surface determined by a carrier element made of glass or plastics, and a layer system covering the surface of the mirror (1) and including layers characterized by refractive indices alternately at least 2.0 and at most 1.7. The improvement lies in applying layer system including at least four layers (4, 5, 6, 7) prepared for reflecting respective color components of the light emitted by the light source (3). The proposed projector lamp is capable of emitting color light without applying filters.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: September 26, 1989
    Assignee: Tungsram Reszvenytarsasag
    Inventors: Istvan Csanyi, Janos Csiszar, Laszla Feher, Zoltan Losonczi, Gyorgy Szabo