公开(公告)号：US20230236437A1

公开(公告)日：2023-07-27

申请号：US18001564

申请日：2021-06-04

Applicant: Essilor International

Inventor： Alain GOULET ,  Samy HAMLAOUI ,  Olivier ROUSSEL

IPC: G02C7/02

CPC classification number: G02C7/027

Abstract: A pair of ophthalmic lenses adapted for a wearer whose prescriptions for the left and right eye are different by at least 0.25D in cylinder, the rear surfaces of both ophthalmic lenses having a substantially identical shape.

公开(公告)号：US20210356768A1

公开(公告)日：2021-11-18

申请号：US17317206

申请日：2021-05-11

Applicant: Essilor International

Inventor： Samy HAMLAOUI ,  Sylvain CHENE ,  Bruno FERMIGIER

IPC: G02C7/08

Abstract: The disclosure relates to an optical article which comprises a hollow chamber and a separator separating the hollow chamber into a first subspace and a second subspace.
The separator comprises an aperture.
The optical article comprises a deformable membrane, attached, in the second subspace, along a closed line surrounding the aperture.
The optical article is switchable, by deformation of the membrane, between at least three states (ST1, ST2, ST3).
Each state corresponds to a different optical function.
The disclosure also comprises a corresponding method for switching said optical article between at least two of the three states.

公开(公告)号：US20240419016A1

公开(公告)日：2024-12-19

申请号：US18701779

申请日：2022-10-25

Applicant: Essilor International

Inventor： Bruno FERMIGIER ,  Guillaume GIRAUDET ,  Matthieu GUILLOT ,  Samy HAMLAOUI ,  David RIO

IPC: G02C7/02

Abstract: A lens element for a spectacle lens, a contact lens or an intraocular lens, intended to be worn by a wearer having a refraction area having a refractive power based on a prescription for said eye of the wearer and a plurality of n optical elements, at least one of the n optical elements having an optical function of not focusing an image on the retina of the eye of the wearer, the kth optical element being located in a domain defined by a closed contour, k being a positive integer equal or greater than 2 and smaller or equal to n, a coating layer may be deposited on the lens element, wherein, without taking the potential coating layer into account, the least one kth optical element presents as a standard deviation of sphere values of at least 0.4 dpt, where is defined as, H(xi, yi) mean optical curvature operator at position xi, yi of the kth optical element in its domain, being the mean of the mean optical curvatures over the whole domain of the kth optical element, being an integer of number all positions xi yi in the domain of the k-th optical element and being greater than 100.

公开(公告)号：US20230301776A1

公开(公告)日：2023-09-28

申请号：US18189587

申请日：2023-03-24

Applicant: ESSILOR INTERNATIONAL

Inventor： Matthieu GUILLOT ,  Samy HAMLAOUI ,  Guillaume GIRAUDET ,  David RIO ,  Konogan BARANTON

IPC: A61F2/16 ,  A61B3/103

CPC classification number: A61F2/1618 ,  A61B3/103

Abstract: A lens element intended to be worn in front of an eye of a wearer including at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some optical elements of the second set are disposed with respect to the optical elements of the first set of the lens element to provide according to a respective first and a second gaze direction on different zones of the retina of the eye of the wearer distinct cumulative optical effects.

公开(公告)号：US20250004300A1

公开(公告)日：2025-01-02

申请号：US18709128

申请日：2022-08-30

Applicant: Essilor International

Inventor： Samy HAMLAOUI ,  Guillaume GIRAUDET ,  David RIO ,  Matthieu GUILLOT

IPC: G02C7/02

Abstract: A method for determining an ophthalmic lens adapted to slow down progression of a vision impairment of an eye of a wearer, the lens having a front surface and a back surface and at least one optical area not focusing an image on the retina of the eye. The method includes providing a plurality of wearer parameters, including at least a prescription and an indication about the need for slowing down the progression of the vision impairment, selecting a semi-finished lens that best corresponds to at least the prescription, defining at least one optical target for the front and/or back surface, taking account of the plurality of wearer parameters, and minimizing a cost function relating to the at least one optical target, so as to determine an optimized front and/or back surface of the semi-finished lens as the front and/or back surface of the ophthalmic lens.

公开(公告)号：US20230046843A1

公开(公告)日：2023-02-16

申请号：US17787285

申请日：2020-12-15

Applicant: Essilor International

Inventor： Guilhem ESCALIER ,  Thierry BONNIN ,  Samy HAMLAOUI

IPC: G02C13/00 ,  G06T7/60 ,  G06T7/73

Abstract: A method for determining a fitted position of an ophthalmic lens to be mounted on a spectacle frame equipping a wearer, the fitted position being defined with respect to a wearer referential linked to the head of the wearer. The method includes defining at least one fitting criteria relating to the positioning of the ophthalmic lens with respect to the spectacle frame, determining frame 3D data at least partially representative of the geometry and position of the spectacle frame with respect to the wearer referential, determining lens 3D data at least partially representative of the geometry of at least a peripheral portion of the ophthalmic lens, and determining the fitted position of said ophthalmic lens with respect to the wearer referential using the frame 3D data and said lens 3D data to fit the ophthalmic lens within the spectacle frame meeting the fitting criteria.

公开(公告)号：US20230314837A1

公开(公告)日：2023-10-05

申请号：US18193277

申请日：2023-03-30

Applicant: ESSILOR INTERNATIONAL

Inventor： Samy HAMLAOUI ,  Alain GOULET ,  Sébastien FRICKER

IPC: G02C7/02

CPC classification number: G02C7/027 ,  G02C7/028 ,  G02C2202/24

Abstract: A method for determining the adaptation of a myopia control optical lens to a wearer, configured to provide simultaneously to the wearer a refractive optical function based on a prescription for the wearer and a myopia control function, the method includes providing an eye model, a visual environment, a myopia control optical lens model, and a reference frame and positioning the eye model, the myopia control optical lens model and the visual environment in the reference frame. A central vision quality criterion is determined for an object of the visual environment seen by the eye model through the myopia control optical lens. A myopia control efficiency criterion is determined for an object of the visual environment seen by the eye through the myopia control optical lens. The adaptation of the myopia control optical lens is determined based on the central vision quality criterion and the myopia control efficiency criterion.

公开(公告)号：US20230305317A1

公开(公告)日：2023-09-28

申请号：US18189637

申请日：2023-03-24

Applicant: ESSILOR INTERNATIONAL

Inventor： Matthieu GUILLOT ,  Samy HAMLAOUI ,  Guillaume GIRAUDET ,  David RIO ,  Konogan BARANTON

IPC: G02C7/02

CPC classification number: G02C7/027 ,  G02C2202/24

Abstract: A lens element intended to be worn in front of an eye of a wearer having at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some of the optical elements of the first set and the second set are disposed in a mutual relationship in such a way that, for at least one gaze direction, a first and a second cumulative optical effect are provided at the same time for respective at least first and second incoming light beams.

公开(公告)号：US20230077639A1

公开(公告)日：2023-03-16

申请号：US17790221

申请日：2021-01-08

Applicant: Essilor International

Inventor： Samy HAMLAOUI ,  Florian CALEFF ,  Stephane GUEU ,  Arnaud SUSSET ,  Fabien MURADORE ,  Ning WANG

IPC: G01M11/02

Abstract: This method for retrieving at least one optical parameter of an ophthalmic lens comprises: obtaining an image of a first and second patterns by using an image capture device located at a first position; from that image, obtaining a first set of data from at least a part of the first pattern that is seen through the lens by the image capture device and obtaining a second set of data from at least a part of the second pattern that is seen directly i.e. outside the lens by the image capture device; retrieving the at least one optical parameter by using the first and second sets of data and taking account of relative positions of the image capture device, the lens and the first and second patterns.

公开(公告)号：US20230050801A1

公开(公告)日：2023-02-16

申请号：US17786458

申请日：2020-12-18

Applicant: Essilor International

Inventor： Cyril GUILLOUX ,  Alain GOULET ,  Samy HAMLAOUI ,  Asma LAKHOUA

IPC: G02C7/02

Abstract: A method for determining an optical lens adapted for a wearer and optimized for at least a given optical criterion having a target value around a specific gaze direction. The method includes determining an intermediate optical lens by optimizing, using an optimization function, an initial optical lens so that the difference between the value of the at least given optical criterion of the intermediate optical lens and the target value of gaze directions around a specific gaze direction is smaller than or equal to a threshold value, and determining the optical lens by optimizing the intermediate optical lens so as to obtain the largest zone of gaze directions around the specific gaze direction for which the difference between the value of the at least given optical criterion and the target value around the specific gaze direction is smaller than or equal to the threshold value.