Patents by Inventor Sergio De Sisti

Sergio De Sisti 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).

  • LED light projector with Fresnel or planar-convex lens, in particular for cinema illumination
    Patent number: 9341934
    Abstract: An optical system for LED light projectors utilizing a Fresnel or planar-convex lens that permits a considerable energy saving and an elevated quality of the illumination either in FLOOD or SPOT mode is described. The optical system has a mirror having a particular three-dimensional surface constructed by rotating a parabola and taking sectors so as to obtain a surface that is more closed than a pure parabola. A reflecting optical system for projectors utilizing a Fresnel or planar-convex lens is also described.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: May 17, 2016
    Inventors: Mario De Sisti, Fabio De Sisti, Sergio De Sisti
  • LED LIGHT PROJECTOR WITH FRESNEL OR PLANAR-CONVEX LENS, IN PARTICULAR FOR CINEMA ILLUMINATION
    Publication number: 20140320830
    Abstract: An optical system for LED light projectors utilising a Fresnel or planar-convex lens that permits a considerable energy saving and an elevated quality of the illumination either in FLOOD or SPOT mode is described. The optical system has a mirror having a particular three-dimensional surface constructed by rotating a parabola and taking sectors so as to obtain a surface that is more closed than a pure parabola. A reflecting optical system for projectors utilising a Fresnel or planar-convex lens is also described.
    Type: Application
    Filed: August 9, 2012
    Publication date: October 30, 2014
    Inventors: Mario De Sisti, Fabio De Sisti, Sergio De Sisti