Patents by Inventor Arnoldus L. G. J. Severens

Arnoldus L. G. J. Severens 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).

  • Device in which electromagnetic radiation is raised in frequency and apparatus for optically scanning an information plane, comprising such a device
    Patent number: 5471490
    Abstract: A doubler for a pulsed multimode laser diode. A controllable feedback loop controls the laser output such that one of the output wavelengths, or the average of two of them, fall within the acceptance bandwidth of a non-linear optical medium. Alternatively, radiation emitted from the pulsed laser is reflected over a path length such that reflected energy reenters the laser during the build-up of a following pulse.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: November 28, 1995
    Assignee: U.S. Philips Corporation
    Inventors: Coen T. H. F. Liedenbaum, Arnoldus L. G. J. Severens, Ronald R. Drenten, Michiel J. Jongerius