Patents by Inventor Gilles Le Blevennec

Gilles Le Blevennec 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: 11294130
    Abstract: The invention relates to an optical system having a light source, configured to emit electromagnetic radiation; a waveguide, configured to guide the electromagnetic radiation in a guiding direction and having an input; and an injection device, configured to inject the electromagnetic radiation emitted by the light source at the input of the waveguide. The injection device consists of a single dioptric interface designed to focus the electromagnetic radiation emitted by the light source at the input of the waveguide.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: April 5, 2022
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Gilles Le Blevennec, Philippe Berne
  • Publication number: 20210391497
    Abstract: An optoelectronic light emitting device includes a light emitting diode configured to emit a first radiation, a conversion layer including at least one planar quantum well configured to convert the first radiation into a second radiation, by photoluminescence, a grating for extracting the second radiation being etched on an upper face of the layer, and a lateral reflector having a reflective surface which extends facing part at least of a lateral surface of the conversion layer.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 16, 2021
    Inventors: Badhise BEN BAKIR, Adrien GASSE, Gilles LE BLEVENNEC, Nicolas OLIVIER
  • Patent number: 11099328
    Abstract: An optical coupler including a first surface intended to receive a light beam and a second surface intended to supply at least part of the light beam, and a lateral wall connecting the first surface to the second surface, the lateral wall successively including, between the first and second surfaces, a first concave portion and a first convex portion.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: August 24, 2021
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Gilles Le Blevennec, Marianne Consonni
  • Publication number: 20210193976
    Abstract: The invention relates to a method for producing a light-emitting diode, comprising a stack formed of a first semiconductor layer 11 and of an active layer 13, a reflective electrode 4 extending in contact with the first semiconductor layer 11, comprising a step of determining a distance between emitting dipoles that are located in the active layer 13 and the reflective electrode 4 for which a lifetime of the emitting dipoles having a chosen orientation is longer than that of the emitting dipoles having the non-chosen orientation.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 24, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Gilles LE BLEVENNEC, Badhise BEN BAKIR, Eirini SARELLI
  • Publication number: 20210193888
    Abstract: The invention relates to a method for producing a light-emitting diode comprising a semiconductor stack formed of a first layer 11, of an active layer 13, and of an extraction layer 6. It comprises a step of determining a distance h1s between emitting dipoles ?1 that are located in the active layer 13 and the extraction layer 6, such that the emitting dipoles ?1 of vertical orientation have in particular a lifetime longer than that of the emitting dipoles of horizontal orientation.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 24, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Gilles LE BLEVENNEC, Badhise BEN BAKIR, Eirini SARELLI
  • Publication number: 20210173161
    Abstract: The invention relates to an optical system having a light source, configured to emit electromagnetic radiation; a waveguide, configured to guide the electromagnetic radiation in a guiding direction and having an input; and an injection device, configured to inject the electromagnetic radiation emitted by the light source at the input of the waveguide. The injection device consists of a single dioptric interface designed to focus the electromagnetic radiation emitted by the light source at the input of the waveguide.
    Type: Application
    Filed: August 20, 2019
    Publication date: June 10, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Gilles LE BLEVENNEC, Philippe BERNE
  • Publication number: 20210032533
    Abstract: Solution for use in filling micrometer-size cavities (10), the solution comprising a first solvent, a first polymer (102) having a first molecular weight, a second polymer (103) having a second molecular weight, luminophores (101) and a surfactant, the second molecular weight being 10 to 50 times greater than the first molecular weight.
    Type: Application
    Filed: December 4, 2018
    Publication date: February 4, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Gilles LE BLEVENNEC, Sonia DE SOUSA NOBRE, Olivier PONCELET
  • Publication number: 20200400900
    Abstract: A collimation device of axis D, including a first surface placed in an outer medium having a first refraction index n1 and receiving an electromagnetic radiation delivered by a light source located at a distance L from the first surface, and a second surface delivering the collimated electromagnetic radiation. The collimation device is mainly made of a first material having a second refraction index n2 and the first surface is defined by the revolution around axis D of a profile defined in a plane perpendicular to axis D.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 24, 2020
    Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventor: Gilles Le Blevennec
  • Publication number: 20200274036
    Abstract: An optoelectronic device includes a LED that is suited to the emission of a radiation and that includes an active layer, and a conversion layer that extends over the active layer of the LED and that includes a plurality of fluorophores suited to the conversion of the radiation emitted by the LED, wherein the conversion layer is confined laterally by a mirror reflecting both the radiation converted by the fluorophores and the radiation not converted by the fluorophores, and vertically between a first and a second multilayer reflective filters forming a resonant Fabry-Perot cavity that blocks the radiation not converted by the fluorophores and has a transmittance peak for the radiation converted by the fluorophores.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 27, 2020
    Inventors: Gilles LE BLEVENNEC, Badhise BEN BAKIR
  • Publication number: 20200174196
    Abstract: An optical coupler including a first surface intended to receive a light beam and a second surface intended to supply at least part of the light beam, and a lateral wall connecting the first surface to the second surface, the lateral wall successively including, between the first and second surfaces, a first concave portion and a first convex portion.
    Type: Application
    Filed: November 29, 2019
    Publication date: June 4, 2020
    Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Gilles Le Blevennec, Marianne Consonni
  • Publication number: 20160379792
    Abstract: A cathodoluminescent device, including a luminescent layer having a first side, called the front side, that is intended to receive incident electrons, the luminescent layer being suitable for absorbing incident electrons and for emitting light radiation in response, wherein the front side of the luminescent layer is coated with a layer including electrically conductive nanowires.
    Type: Application
    Filed: June 24, 2016
    Publication date: December 29, 2016
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Gilles LE BLEVENNEC, Caroline Celle
  • Publication number: 20160280991
    Abstract: The photoluminescence internal quantum efficiency of nanoparticles formed in all or part of a nanocrystal of AgxMyM?zS0.5x+y+1.5z (I) type, including at least the stages in: (1) having available nanoparticles formed in all or part of a nanocrystal, the chemical composition of which corresponds to the formula (I): AgxMyM?zS0.5x+y+1.5z (I); the nanoparticles being functionalized at the surface by an organic ligand L1 different from a ligand of phosphine type; wherein the nanocrystals having the chemical composition of formula (I) are prepared beforehand via a process employing only a single stage of heat treatment; and (2) bringing together the nanoparticles and at least one ligand compound L2 of phosphine type of general formula PR3 (II), or its oxidized form O?PR3 (II?), under conditions favorable to an exchange, at least in part, of the organic ligands L1 by said ligands of phosphine type L2.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 29, 2016
    Applicant: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Théo CHEVALLIER, Frédéric CHANDEZON, Gilles LE BLEVENNEC
  • Publication number: 20080032139
    Abstract: The invention relates to a substrate for electronic use including a flexible support covered successively by a porous oxide layer and a polycrystalline or amorphous silicon layer. The invention also relates to a method for producing such a substrate.
    Type: Application
    Filed: May 26, 2005
    Publication date: February 7, 2008
    Inventors: Gilles Le Blevennec, Philippe Prene