Patents by Inventor Marcel Grasset

Marcel Grasset 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).

  • Illumination sensor with attenuating diffuser
    Patent number: 4795899
    Abstract: A lighting sensor is provided including a sleeve made from a translucent erial having a bottom intended to be exposed to the light whose illumination it is desired to measure, an optoelectronic component positioned inside the sleeve with its sensitive face disposed in line with said bottom and means for securing said component and said sleeve together.The invention overcomes in a simple way the problems due to the non linearity of the signal delivered by the optoelectronic component to the saturation of this component and to the narrowness of its aperture angle.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: January 3, 1989
    Assignee: Societe Francaise d'Equipements pour la Navigation Aerienne (S.F.E.N.A.)
    Inventors: Alain Pilot, Marcel Grasset