Patents by Inventor Philippe Gacoin

Philippe Gacoin 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).

  • Method for making optical components by replication
    Patent number: 6579477
    Abstract: A method for fabricating optical components by replication using a matrix, and optical components obtained by such method are described. The optical components are diffractive optical components, such as light-diffraction networks which are used in optical devices in order to divert a light beam according to a preferential order of diffraction.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: June 17, 2003
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Philippe Belleville, Philippe Gacoin, Sophie Kaladgew
  • Wavelength multiplexer/demultiplexer using optical fibers
    Patent number: 4583820
    Abstract: Selector for separating at least two wavelength bands from a complex light introduced into the apparatus through the end of an optical fiber (12) arranged in the immediate vicinity of the focal point of a concave mirror (5) producing a parallel beam directed towards a plane reflecting device, the return beam being focused towards an output optical fiber. It comprises at least one plane multidielectric layer (8) interposed between the concave mirror (5) and the plane reflecting device (10) and forming, with the vertex axis (6) of the concave mirror, an angle which is slightly different from that of the plane reflecting device, each multidielectric layer having a discontinuity in the vicinity of the vertex axis of the concave mirror.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: April 22, 1986
    Assignee: Instruments S.A.
    Inventors: Jean Flamand, Philippe Gacoin, Jean-Pierre Laude