Patents Assigned to Max-planck-Gesellschaft zur Fordenberg der Wissenschaften e.V.
  • Process for the optical display of information using lasers
    Patent number: 4213153
    Abstract: A display process for the optical presentation of information which process omprises impinging laser beams modulated as to their direction, intensity and/or frequency, upon a transparent target containing a fluorescent substance which is excited by said laser beams to optical fluorescence, e.g., which absorbs in the ultraviolet range and yields fluorescent radiation in the visible range; typical ions capable of fluorescence are uranyl ions or ions of the rare earth elements.
    Type: Grant
    Filed: August 16, 1978
    Date of Patent: July 15, 1980
    Assignee: Max-planck-Gesellschaft zur Fordenberg der Wissenschaften e.V.
    Inventor: Fritz P. Schafer