Patents Assigned to LLTECH MANAGEMENT
  • Patent number: 11543641
    Abstract: A system that includes an interference device including a reference arm on which a reflective surface is arranged, where the interference device produces, at each point of an imaging field when the sample is placed on a target arm of the interference device, interference between a reference wave and a target wave obtained by backscattering of incident light waves by means of a voxel of a slice of the sample at a given depth; an acquisition device suitable for acquiring, at a fixed path length difference between the target arm and the reference arm, a temporal series of N two-dimensional interferometric signals resulting from the interference produced at each point of the imaging field; and a processing unit that calculates an image representing temporal variations in intensity between said N two-dimensional interferometric signals.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: January 3, 2023
    Assignee: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms
  • Publication number: 20200233198
    Abstract: A system that includes an interference device including a reference arm on which a reflective surface is arranged, where the interference device produces, at each point of an imaging field when the sample is placed on a target arm of the interference device, interference between a reference wave and a target wave obtained by backscattering of incident light waves by means of a voxel of a slice of the sample at a given depth; an acquisition device suitable for acquiring, at a fixed path length difference between the target arm and the reference arm, a temporal series of N two-dimensional interferometric signals resulting from the interference produced at each point of the imaging field; and a processing unit that calculates an image representing temporal variations in intensity between said N two-dimensional interferometric signals.
    Type: Application
    Filed: April 1, 2020
    Publication date: July 23, 2020
    Applicant: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms
  • Patent number: 10627613
    Abstract: The invention relates to a system (20) for full-field interference microscopy imaging of a three-dimensional diffusing sample (206).
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: April 21, 2020
    Assignee: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms
  • Publication number: 20180120550
    Abstract: The invention relates to a system (20) for full-field interference microscopy imaging of a three-dimensional diffusing sample (206).
    Type: Application
    Filed: April 8, 2016
    Publication date: May 3, 2018
    Applicant: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms
  • Patent number: 9255785
    Abstract: A device for three-dimensional imaging by full-field interferential microscopy of a volumic and scattering sample includes an imaging interferometer of variable magnification, allowing for the acquisition of at least one first and one second interferometric images resulting from the interference of a reference wave obtained by reflection of the incident wave on a reference mirror and an object wave obtained by backscattering of the incident wave by a slice of the sample at a given depth of the sample. The invention also relates to a processing unit that processes the interferometric images, a unit for axially displacing the interferometer relative to the sample for the acquisition of tomographic images for slices at different depths of the sample, and a unit for varying the magnification of the imaging interferometer for the acquisition of interferometric images of a slice for different magnification values.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 9, 2016
    Assignee: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms, Bertrand Le Conte Chrestien De Poly
  • Patent number: 9185357
    Abstract: According to a first aspect, the invention relates to a multimodal optical sectioning microscope (200, 400, 600) for full-field imaging of a volumic and scattering sample comprising: —a full-field OCT system for providing an image of a first section in depth of the sample comprising an illumination sub-system (201, 401, 601) and a full-field imaging interferometer with a detection sub system (208, 408, 608) and an optical conjugation device for optically conjugating the sample and said detection sub system, wherein said optical conjugation device comprises a microscope objective (203, 403, 603), —a supplementary full-field optical sectioning imaging system for providing a fluorescent image of a second section in depth of said sample comprising a structured illumination microscope with an illumination sub system (623), means (421, 422) for generating at the focal plane of said microscope objective of said full-field imaging interferometer a variable spatial pattern illumination and a detection sub system (624)
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: November 10, 2015
    Assignee: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms, Bertrand Le Conte Chrestien De Poly
  • Patent number: 9046338
    Abstract: The present invention relates to a full-field optical coherence tomography system (300) for imaging an object (319), comprising a light source (301), a first interferometric device having means for splitting an input light beam and comprising at least a reflecting surface (307), a second interferometric device having means for splitting the spectrally modulated output beam and comprising at least a reflecting surface, a multichannel acquisition device (321), the system (300) being characterized in that at least one of the interferometric devices includes at least a focusing optical element arranged to focus at least one of the input beams or at least one of the output beams onto the corresponding reflecting surface of the corresponding interferometric device.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 2, 2015
    Assignee: LLTECH MANAGEMENT
    Inventors: Albert Boccara, Anne Latrive, Bertrand Le Conte De Poly, Fabrice Harms
  • Patent number: 9025150
    Abstract: The invention relates to an incoherent light full field interference microscopy device for the imaging of a volumetric scattering sample (106). The device comprises an interference device (100) between a reference wave (401), produced by reflection of an incident wave by a reflective surface (105) of a reference arm of the interference device, and an object wave (402) produced by backscattering of the incident wave by a slice of the sample, an acquisition device (108) for at least a first interference signal and at least a second interference signal resulting from the interference of the reference and object waves, the at least two interference signals having a phase difference, an processing unit (403) for calculating an image of the slice of the sample, based on said interference signals.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: May 5, 2015
    Assignee: LLTech Management
    Inventors: Albert Claude Boccara, Fabrice Harms, Bertrand Le Conte Chrestien de Poly
  • Publication number: 20130235383
    Abstract: The present invention relates to a full-field optical coherence tomography system (300) for imaging an object (319), comprising a light source (301), a first interferometric device having means for splitting an input light beam and comprising at least a reflecting surface (307), a second interferometric device having means for splitting the spectrally modulated output beam and comprising at least a reflecting surface, a multichannel acquisition device (321), the system (300) being characterized in that at least one of the interferometric devices includes at least a focusing optical element arranged to focus at least one of the input beams or at least one of the output beams onto the corresponding reflecting surface of the corresponding interferometric device.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 12, 2013
    Applicant: LLTECH MANAGEMENT
    Inventors: Albert Boccara, Anne Latrive, Bertrand Le Conte De Poly, Fabrice Harms
  • Publication number: 20130182096
    Abstract: According to a first aspect, the invention relates to a multimodal optical sectioning microscope (200, 400, 600) for full-field imaging of a volumic and scattering sample comprising:—a full-field OCT system for providing an image of a first section in depth of the sample comprising an illumination sub-system (201, 401, 601) and a full-field imaging interferometer with a detection sub system (208, 408, 608) and an optical conjugation device for optically conjugating the sample and said detection sub system, wherein said optical conjugation device comprises a microscope objective (203, 403, 603),—a supplementary full-field optical sectioning imaging system for providing a fluorescent image of a second section in depth of said sample comprising a structured illumination microscope with an illumination sub system (623), means (421, 422) for generating at the focal plane of said microscope objective of said full-field imaging interferometer a variable spatial pattern illumination and a detection sub system (624),
    Type: Application
    Filed: September 19, 2011
    Publication date: July 18, 2013
    Applicant: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms, Bertrand Le Conte Chrestien De Poly
  • Publication number: 20130107275
    Abstract: According to one aspect, the invention relates to a device (20) for three-dimensional imaging by full-field interferential microscopy of a volumic and scattering sample (1) comprising an emission source (201) for emitting an incident wave with low temporal coherence, an imaging interferometer (200) of variable magnification, allowing for the acquisition of at least one first and one second interferometric images resulting from the interference of a reference wave obtained by reflection of the incident wave on a reference mirror (205) and an object wave obtained by backscattering of the incident wave by a slice of the sample at a given depth of the sample, the at least two interferometric images having a phase difference obtained by varying the relative path difference between the object and reference arms of the interferometer, a processing unit (206) for processing said interferometric images making it possible to obtain a tomographic image of said slice of the sample, means for axially displacing the interf
    Type: Application
    Filed: July 8, 2011
    Publication date: May 2, 2013
    Applicant: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms, Bertrand Le Conte Chrestien De Poly
  • Publication number: 20130107268
    Abstract: The invention relates to an incoherent light full field interference microscopy device for the imaging of a volumetric scattering sample (106). The device comprises an interference device (100) between a reference wave (401), produced by reflection of an incident wave by a reflective surface (105) of a reference arm of the interference device, and an object wave (402) produced by backscattering of the incident wave by a slice of the sample, an acquisition device (108) for at least a first interference signal and at least a second interference signal resulting from the interference of the reference and object waves, the at least two interference signals having a phase difference, an processing unit (403) for calculating an image of the slice of the sample, based on said interference signals.
    Type: Application
    Filed: May 17, 2011
    Publication date: May 2, 2013
    Applicant: LLTECH MANAGEMENT
    Inventors: Albert Claude Boccara, Fabrice Harms, Bertrand Le Conte Chrestien De Poly