Patents by Inventor Wilfried F. Liekens

Wilfried F. Liekens 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: 4458002
    Abstract: A process for the production of a multicolor reversal image with improved color balance is provided which process comprises the steps of directing incident image light dot- or linewise modulated by a light-distributing means onto a multicolor photographic silver halide emulsion material containing a blue-, a green- and a red-sensitive silver halide emulsion layer and processing said silver halide emulsion layers to form a color reversal image.In the maximum density part of the dots or lines of said light distributing means e.g. a contact screen the ratio of the absorption density for the light corresponding with the spectral sensitivity region of the silver halide emulsion layer being during the exposure most remote from the light-distributing means to the absorption density for the light of the whole visible spectrum (400-700 nm) is higher than the said ratio in any other density part of the dots or lines (see FIG. 1).
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: July 3, 1984
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Wilhelmus Janssens, Christiaan G. Thiers, Wilfried F. Liekens