Patents by Inventor Olivier Legrand

Olivier Legrand 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: 9258761
    Abstract: A method is provided with which a terminal can obtain information relating to a radio environment. The method includes the following steps: a discovery device receives a request from the terminal to discover a radio environment; the discovery device determines a list comprising a plurality of access points that belong respectively to an access network and are provided to supply radio coverage at a current location of the terminal; a piece of information is obtained relating to an access to a service by using the access points on the list; the list is enriched with the information obtained in association with the access point; the enriched list is scheduled according to at least one criterion relating to the service; and the ordered list is sent to the terminal by the discovery device.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: February 9, 2016
    Assignee: Orange
    Inventors: Gilles Bertrand, Frédéric Fieau, Gaël Fromentoux, Olivier Legrand
  • Publication number: 20140206349
    Abstract: A method is provided with which a terminal can obtain information relating to a radio environment. The method includes the following steps: a discovery device receives a request from the terminal to discover a radio environment; the discovery device determines a list comprising a plurality of access points that belong respectively to an access network and are provided to supply radio coverage at a current location of the terminal; a piece of information is obtained relating to an access to a service by using the access points on the list; the list is enriched with the information obtained in association with the access point; the enriched list is scheduled according to at least one criterion relating to the service; and the ordered list is sent to the terminal by the discovery device.
    Type: Application
    Filed: June 26, 2012
    Publication date: July 24, 2014
    Applicant: ORANGE
    Inventors: Gilles Bertrand, Frédéric Fieau, Gaël Fromentoux, Olivier Legrand
  • Patent number: 7161736
    Abstract: A microlens structure such as a solid immersion lens structure is a radiation transmissive pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: January 9, 2007
    Assignee: California Institute of Technology
    Inventors: Olivier Legrand, Stephen R. Quake
  • Publication number: 20050052754
    Abstract: Soft lithography with surface tension control is used to microfabricate extremely efficient solid immersion lenses (SILs) out of rubber elastomeric material for use in microscope type applications. In order to counteract the surface tension of the mold material in a negative mold that causes creep on a positive mold, material such as RTV is partially cured before use in order to allow the reticulation of polymer chains to change the viscosity of the uncured material in a controllable manner. In a specific embodiment, the techniques of soft lithography with surface tension control are used to make molded SILs out of the elastomer polydimethylsiloxane. The lenses achieve an NA in the range of 1.25. The principle of compound lens design is used to make the first compound solid immersion lens, which is corrected for higher light gathering ability and has a calculated NA=1.32.
    Type: Application
    Filed: August 10, 2004
    Publication date: March 10, 2005
    Applicant: California Institute of Technology
    Inventors: Stephen Quake, Yann Gambin, Olivier Legrand
  • Publication number: 20050036222
    Abstract: A microlens structure such as a solid immersion lens structure is a radiation transmissive pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Application
    Filed: September 1, 2004
    Publication date: February 17, 2005
    Applicant: California Institute of Technology
    Inventors: Olivier Legrand, Stephen Quake
  • Patent number: 6836384
    Abstract: A microlens structure such as a solid immersion lens structure is a radiation transmissive pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: December 28, 2004
    Assignee: California Institute of Technology
    Inventors: Olivier Legrand, Stephen R. Quake
  • Publication number: 20040027707
    Abstract: A microlens structure such as a solid immersion lens structure is a radiation transmissive pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Application
    Filed: June 18, 2003
    Publication date: February 12, 2004
    Applicant: California Institute of Technology
    Inventors: Olivier Legrand, Stephen R. Quake
  • Patent number: 6608726
    Abstract: A microlens structure such as a solid immersion lens structure is a radiation transmissive pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: August 19, 2003
    Assignee: California Institute of Technology
    Inventors: Olivier Legrand, Stephen R. Quake
  • Patent number: 6560030
    Abstract: A solid immersion lens structure is a translucent pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: May 6, 2003
    Assignee: California Institute of Technology
    Inventors: Olivier Legrand, Stephen R. Quake
  • Publication number: 20020034027
    Abstract: A microlens structure such as a solid immersion lens structure is a radiation transmissive pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Application
    Filed: August 10, 2001
    Publication date: March 21, 2002
    Applicant: California Institute of Technology
    Inventors: Olivier Legrand, Stephen R. Quake
  • Publication number: 20020024728
    Abstract: A solid immersion lens structure is a translucent pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Application
    Filed: August 10, 2001
    Publication date: February 28, 2002
    Inventors: Olivier Legrand, Stephen R. Quake
  • Patent number: 6301055
    Abstract: A solid immersion lens structure is a translucent pliant elastomer cast to a desired shape and smoothness. A method for construction of a solid immersion lens structure includes providing a mold defining a lens shaped cavity in which a solid immersion lens is cast, casting a translucent liquid elastomeric material into the lens cavity, permitting the elastomeric material to set to form the solid immersion lens portion and removing the solid immersion lens portion from the mold. A specific material for use as the solid immersion lens is a translucent silicone elastomer of a refractive index greater than n=1.4, such as General Electric RTV 615.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: October 9, 2001
    Assignee: California Institute of Technology
    Inventors: Olivier Legrand, Stephen R. Quake