Patents by Inventor Guillaume Giraudet

Guillaume Giraudet 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).

  • Publication number: 20220121040
    Abstract: A method for determining a design of a progressive lens intended to be worn by a future wearer, the progressive lens comprising a front surface and a back surface, at least one of the front surface and the back surface comprising a progression profile on its general spherical shape, said at least one progression profile defining a meridian line extending from a distance-vision point to a near-vision point, said meridian line comprising a vertical portion passing through the distance-vision point and an inclined portion passing through the near-vision point, the vertical portion and the inclined portion forming an angle between them, the method including obtaining first data representative of a first measurement of a first postural instability of the future wearer when seeing a visual pattern moving along an mediolateral direction, and determining a reparation between the first progression profile and the second progression profile based on the first data.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 21, 2022
    Applicants: Essilor International, UNIVERSITE DE MONTREAL
    Inventors: Delphine TRANVOUEZ-BERNARDIN, Jocelyn FAUBERT, Guillaume GIRAUDET
  • Publication number: 20220026741
    Abstract: A method for determining a design of a progressive lens intended to be worn by a future wearer, the progressive lens comprising a front surface and a back surface, at least one of the front surface and the back surface comprising a progression profile on its general spherical shape, said at least one progression profile defining a meridian line extending from a distance-vision point to a near-vision point, said meridian line comprising a vertical portion passing through the distance-vision point and an inclined portion passing through the near-vision point, the vertical portion and the inclined portion forming an angle between them, the method comprising obtaining first data representative of a first measurement of a first postural instability of the future wearer when seeing at a visual pattern moving along an anterior-posterior direction, and determining the angle of the inclined portion based on the first data.
    Type: Application
    Filed: November 27, 2019
    Publication date: January 27, 2022
    Applicants: Essilor International, UNIVERSITE DE MONTREAL
    Inventors: Delphine TRANVOUEZ-BERNARDIN, Jocelyn FAUBERT, Guillaume GIRAUDET
  • Publication number: 20220026745
    Abstract: An ophthalmic device for reducing dyslexia effects for a wearer including a frame intended to be worn by the wearer and a blinking illuminating element coupled to the frame comprising at least one light source configured to emit light in front of the wearer's head so as to lighten a medium observed by the wearer, said at least one light source being configured to be successively switched on and switched off at a predetermined frequency when the blinking illuminating element is activated.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 27, 2022
    Applicant: Essilor International
    Inventors: Guillaume GIRAUDET, Nicolas LAVILLONNIERE
  • Publication number: 20200348536
    Abstract: A method for determining an optical system intended to equip a person on the basis of the adaptability of the person to a visual and/or proprioceptive modification of his environment, the method.
    Type: Application
    Filed: August 30, 2018
    Publication date: November 5, 2020
    Applicants: Essilor International, Universite de Montreal
    Inventors: Guillaume GIRAUDET, Jocelyn FAUBERT, Rafael DOTI, Eduardo LUGO
  • Publication number: 20200214926
    Abstract: The application relates to a method for adapting the visual and/or visual-motor behavior of a person, including: providing an optical parameter and a person visual parameter; providing a target value; modifying a visual and/or visual motor behavior; assessing a person visual parameter; determining a suitable visual and/or visual-motor behavior; and adapting the visual and/or visual-motor behavior of the person.
    Type: Application
    Filed: October 2, 2018
    Publication date: July 9, 2020
    Applicants: Essilor International, Universite de Montreal
    Inventors: Bjorn DROBE, Jocelyn FAUBERT, Guillaume GIRAUDET
  • Patent number: 10042184
    Abstract: Active vision system comprising: first and second customizable ophthalmic lenses (22) having an electrically variable occultation between substantially transparent and substantially obscured states; identification device (32) adapted for identifying whether the wearer's viewing state is in a near vision viewing state when wearing the customizable ophthalmic lenses; and processor (40) configured to: switch the electrically variable occultation of one of the customizable ophthalmic lenses (22) from the first to the second light occultation states when a near vision viewing state (NVVS) is identified by the identification device while at the same time the other lens is in the transparent state; and control the electrically variable occultation of the customizable ophthalmic lenses (22) such that they are in the first light occultation state when the wearer's viewing state is identified as being different from a near vision viewing state (NVVS) by identification device (32).
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: August 7, 2018
    Assignee: Essilor International
    Inventors: Thierry Bonnin, Guillaume Giraudet
  • Patent number: 9872635
    Abstract: Method for measuring the visually-induced postural instability of a person is described, the method comprising a display providing step (S1) during which a visual display device is provided. The display device is arranged so as to display a dynamic visual pattern in at least 50% of the lower half of the visual field of the person, leaving an upper half of the visual field of the person free. The method also comprises a display step (S2) during which a dynamic visual pattern is displayed on the visual display device. The method further comprises a measuring step (S3) during which a parameter representative of the postural instability is measured when the person is gazing at a fix target straight in front while having the dynamic visual pattern displayed on the visual display device.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: January 23, 2018
    Assignees: Essilor Canada Ltee, Université de Montréal
    Inventors: Jocelyn Faubert, Guillaume Giraudet, Rafael Doti, Eduardo Lugo
  • Patent number: 9389438
    Abstract: Method for determining the relative amplitude of eye and head movements of an individual, comprising: —a target providing step during which a list of visual targets comprising at least two different visual targets is provided; —a reference positioning step; —a reference target providing step during which a reference target comprising a visual and auditory target is provided; —a reference target gazing step during which the individual gazes at the reference target; —a peripheral target providing step during which a peripheral target comprising a visual and auditory target is provided; —a peripheral target gazing step during which the individual gazes at the peripheral target; and, —a rotation measurement step during which the angle of rotation of the individual's head and the angle or rotation of the individual's eyes are measured.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: July 12, 2016
    Assignees: ESSILOR CANADA LTEE/LTD, Université de Montréal
    Inventors: Guillaume Giraudet, Jocelyn Faubert, Rafael Doti, Eduardo Lugo
  • Publication number: 20150241717
    Abstract: Active vision system comprising: first and second customizable ophthalmic lenses (22) having an electrically variable occultation between substantially transparent and substantially obscured states; identification device (32) adapted for identifying whether the wearer's viewing state is in a near vision viewing state when wearing the customizable ophthalmic lenses; and processor (40) configured to: switch the electrically variable occultation of one of the customizable ophthalmic lenses (22) from the first to the second light occultation states when a near vision viewing state (NVVS) is identified by the identification device while at the same time the other lens is or return in the transparent state; and control the electrically variable occultation of the customizable ophthalmic lenses (22) such that they are in the first light occultation state when the wearer's viewing state is identified as being different from a near vision viewing state (NVVS) by identification device (32).
    Type: Application
    Filed: October 7, 2013
    Publication date: August 27, 2015
    Inventors: Thierry Bonnin, Guillaume Giraudet
  • Publication number: 20150230732
    Abstract: Method for measuring the visually-induced postural instability of a person is described, the method comprising a display providing step (S1) during which a visual display device is provided. The display device is arranged so as to display a dynamic visual pattern in at least 50% of the lower half of the visual field of the person, leaving an upper half of the visual field of the person free. The method also comprises a display step (S2) during which a dynamic visual pattern is displayed on the visual display device. The method further comprises a measuring step (S3) during which a parameter representative of the postural instability is measured when the person is gazing at a fix target straight in front while having the dynamic visual pattern displayed on the visual display device.
    Type: Application
    Filed: September 11, 2013
    Publication date: August 20, 2015
    Applicants: UNIVERSITÉ DE MONTRÉAL, ESSILOR CANADA LTEE
    Inventors: Jocelyn Faubert, Guillaume Giraudet, Rafael Doti, Eduardo Lugo
  • Publication number: 20150212342
    Abstract: Method for determining the relative amplitude of eye and head movements of an individual, comprising: —a target providing step during which a list of visual targets comprising at least two different visual targets is provided; —a reference positioning step; —a reference target providing step during which a reference target comprising a visual and auditory target is provided; —a reference target gazing step during which the individual gazes at the reference target; —a peripheral target providing step during which a peripheral target comprising a visual and auditory target is provided; —a peripheral target gazing step during which the individual gazes at the peripheral target; and, —a rotation measurement step during which the angle of rotation of the individual's head and the angle or rotation of the individual's eyes are measured.
    Type: Application
    Filed: July 4, 2013
    Publication date: July 30, 2015
    Inventors: Guillaume Giraudet, Jocelyn Faubert, Rafael Doti, Eduardo Lugo
  • Publication number: 20150055082
    Abstract: A progressive lens comprising a progressive ophthalmic surface including a main progression meridian dividing the surface into a nasal portion and a temporal portion and passing through at least one fitting point Py of ordinate Yp in a coordinate system centered on a reference point O(0; 0). For the points located at an ordinate Yp on either side of said fitting point Py, the points of ordinate Yp being contained inside a 50 mm diameter disc centered on the reference point O: 0.5 ? ? MaxgradCyl Ny ? ? 1 - MaxgradCyl Ty ? ? 1 MaxgradCyl Ny ? ? 1 + MaxgradCyl Ty ? ? 1 ? ? 0.2 where: MaxgradCylNy1 is the absolute value of the maximum cylinder gradient of all the points located at said ordinate Yp in the nasal portion of the surface; and MaxgradCylTy1 is the absolute value of the maximum cylinder gradient of all the points located at said ordinate Yp in the temporal portion of the surface.
    Type: Application
    Filed: April 2, 2013
    Publication date: February 26, 2015
    Inventors: Jocelyn Faubert, Guillaume Giraudet
  • Patent number: 8783872
    Abstract: A method for providing a spectacle ophthalmic lens to a wearer, the method comprising the following steps: providing a value, SV, representing the sensitivity of the wearer referred to a scale of sensitivity to perception of spatial orientation, according to both visual and non visual frames of reference; calculating a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting the management of residual astigmatism and/or optical power repartition according to gaze direction based on the value, SV, representing the sensitivity of the wearer referred to a scale of sensitivity to perception of spatial orientation.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: July 22, 2014
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventor: Guillaume Giraudet
  • Patent number: 8721082
    Abstract: The invention relates to a method for characterizing a perception of blur by a subject (10) in order to determine a dioptric blur value for an image (C) observed by the subject. The image has a blur generated by the low-pass filtering of the image components in accordance with the respective space frequencies of said image components. An indication of the perception thereof of blur in the image is provided by the subject and is associated with the dioptric blur value. Several images associated with different dioptric blur values are used for defining a dioptric blur threshold value for the subject that corresponds to a blur perception criterion. The invention can be used for adjusting the design of a progressive lens for the subject in accordance with the sensitivity to said visual blur of said object.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: May 13, 2014
    Assignee: Essilor International (Compagnie Generale d'Optique
    Inventors: Björn Drobe, Guillaume Giraudet
  • Patent number: 8573778
    Abstract: A method for producing an ophthalmic spectacle lens makes it possible to fit out a wearer of lenses in a manner which is customized as a function of a perception of blur by said wearer. The lens is selected so that the wearer has the impression of having a field of sharp vision which has a reference width. This reference width is determined on the basis of a first lens which complies with the wearer's ophthalmic prescription and a reference threshold value of the blur. It is thereafter associated within the lens which is provided for the wearer with a threshold value of the blur which is perceived by this wearer.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: November 5, 2013
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: Björn Drobe, Guillaume Giraudet
  • Patent number: 8540366
    Abstract: The invention relates to the making of a progressive spectacle lens for customizing the lens based on the blur perception by a future lens wearer. Accordingly, a blur threshold value is determined for the wearer according to a blur perception criterion that varies based on an optical-power addition value prescribed for the wearer. The blur threshold value is associated with a reference sight direction for the lens provided to the wearer.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: September 24, 2013
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: Björn Drobe, Guillaume Giraudet
  • Patent number: 8474979
    Abstract: A method makes a customized progressive ophthalmic lens intended for an identified wearer that includes measurements of the inclination of the wearer's head. These measures are made when the wearer performs visual tasks in far-vision conditions, by consecutively looking horizontally, then towards the ground. A variation of the optical power of the progressive lens, below a reference direction for the far vision, is adjusted on the basis of the measure results. The habituation period of the wearer to the progressive lens can thus be reduced.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: July 2, 2013
    Assignee: Essilor International (Compagnie Generale d'Optique
    Inventor: Guillaume Giraudet
  • Patent number: 8414126
    Abstract: A method for evaluating and/or improving dynamic visual perception of an individual, comprising: a) displaying on a screen (11) a moving pattern (12) having a chosen visual complexity feature (Simp), b) providing a human/machine interface (13, 14) enabling the individual to input a value to indicate the pattern that the individual sees on the screen, c) repeating the preceding steps in order to count the number of successive positive answers imputed at step b), and d1) if the number of successive positive comparisons exceeds a predetermined threshold (S1), increasing (S2) the pattern visual complexity feature of a chosen amount, d2) otherwise, lowering (S7) the pattern visual complexity feature of a chosen amount, e) repeating steps d1) and d2) and lowering (Appl h, S3; S8) the chosen amount each time an alternation between steps d1) and d2) is detected, until a predetermined number (THR) of alternations (Alter) is detected, in order to determine a maximum visual complexity feature (Simp) of patterns that the
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 9, 2013
    Assignee: Essilor International (Compagnie Generale d'Optique
    Inventors: Guillaume Giraudet, Adrien Bak
  • Patent number: 8192021
    Abstract: The present invention relates to an ophthalmic lens comprising, on its surface, a first central yellow zone preferentially absorbing the blue light of the visible spectrum, a second peripheral zone preferentially absorbing light having wavelengths of less than 600 nm, and preferentially a third zone which is colorless, grey, or brown in the lower part of the lens.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: June 5, 2012
    Assignee: Essilor International (Compagnie Generale d'optique)
    Inventor: Guillaume Giraudet
  • Publication number: 20120106813
    Abstract: The invention relates to a method for characterizing a perception of blur by a subject (10) in order to determine a dioptric blur value for an image (C) observed by the subject. The image has a blur generated by the low-pass filtering of the image components in accordance with the respective space frequencies of said image components. An indication of the perception thereof of blur in the image is provided by the subject and is associated with the dioptric blur value. Several images associated with different dioptric blur values are used for defining a dioptric blur threshold value for the subject that corresponds to a blur perception criterion. The invention can be used for adjusting the design of a progressive lens for the subject in accordance with the sensitivity to said visual blur of said object.
    Type: Application
    Filed: June 25, 2010
    Publication date: May 3, 2012
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Björn Drobe, Guillaume Giraudet