公开(公告)号：US10712590B2

公开(公告)日：2020-07-14

申请号：US15768079

申请日：2016-10-11

Applicant: Essilor International

Inventor： Benjamin Rousseau ,  Melanie Heslouis ,  Sebastien Fricker ,  Nacer Lakhchaf ,  Guilhem Escalier ,  Thierry Bonnin ,  Isabelle Poulain ,  Valerie Jolivet ,  Juliette Wierzbicki

IPC: G02C7/06 ,  G02C7/02

Abstract: An ophthalmic progressive addition lens for a presbyopic wearer which has a prescribed far vision mean refractive power a non nil prescribed addition, ADDp, the lens having a far vision reference point, a mean refractive power, PPO(α, β), a module of resulting astigmatism, ASR(α, β), a meridian line, ML(α, β), the (α, β) functions being determined in as-worn conditions of the lens by the wearer for gaze directions (α, β) joining the center of rotation of the eye, CRE, and the lens, wherein α is a lowering angle in degree and β is an azimuth angle in degree, and wherein α lens criterion, CRIT, fulfils following requirement: 0.38≤CRIT≤4.50, where: CRIT=NumeratorCRIT/DenominatorCRIT, NumeratorCRIT=(A1/A2)+(PPO(αFV, βFV)/(100·ADDp)); A1=α100%−α85%; A2=α100%−α60%; DenominatorCRIT=[(PeaksMean/ADDp)+(PPO(αFV,βFV)/(8·ADDp))]3.

公开(公告)号：US10690938B2

公开(公告)日：2020-06-23

申请号：US15767814

申请日：2016-10-11

Applicant: Essilor International

Inventor： Benjamin Rousseau ,  Melanie Heslouis ,  Sebastien Fricker ,  Nacer Lakhchaf ,  Guilhem Escalier ,  Thierry Bonnin ,  Isabelle Poulain ,  Valerie Jolivet ,  Juliette Wierzbicki

IPC: G02C7/02 ,  G02C7/06 ,  A61F2/14 ,  G02C7/04

Abstract: An ophthalmic progressive addition lens for a myopic or emmetropic presbyopic wearer which has a prescribed far vision mean refractive power and a non nil prescribed addition, ADDp, the lens having a far vision reference point, a mean refractive power, PPO(α, β), a module of resulting astigmatism, ASR(α, β), a meridian line, ML(α, β), the (α, β) functions being determined in as-worn conditions of the lens by the wearer for gaze directions (α, β) joining the center of rotation of the eye, CRE, and the lens, wherein α is a lowering angle in degree and β is an azimuth angle in degree, and wherein a lens criterion, A1/A2, fulfils: A1/A2≥0.50, wherein: A1=α100%−α85%; A2=α100%−α60%.

公开(公告)号：US10234700B2

公开(公告)日：2019-03-19

申请号：US15105225

申请日：2014-12-03

Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)

Inventor： Cécile Petignaud ,  Thierry Laloux ,  Nacer Lakhchaf ,  Benjamin Rousseau ,  Marie-Anne Berthezene

IPC: G02C13/00 ,  A61B3/00 ,  A61B3/11

Abstract: The invention relates to a method for checking the correct assembly of a device consisting of a frame and of two corrective ophthalmic lenses. The main feature of a method according to the invention is that it includes the following steps: an initial step of determining at least one parameter which makes it possible to position the lenses in the frame relative to the face; a subsequent step of acquiring at least one image of the face of said wearer with said device, which shows centering and horizontal level marks; a step of comparing said at least one parameter determined during said initial step with the corresponding parameter deduced from said at least one image; and a step of making a decision regarding the correct assembly of the device.

公开(公告)号：US12210223B2

公开(公告)日：2025-01-28

申请号：US17439941

申请日：2020-04-13

Applicant: ESSILOR INTERNATIONAL

Inventor： Cécile Petignaud ,  Marie-Gaelle Froeliger ,  Nacer Lakhchaf ,  Bénédicte Deldalle

IPC: G02C7/02 ,  G02C7/06

Abstract: Disclosed is a method for determining an optical function of a progressive ophthalmic lens for a wearer, including: providing a prescription of the wearer; providing wearing data including at least a numerical parameter; providing by at least one processor a set of predefined optical functions including at least a first predefined optical function adapted to the prescription of the wearer and to a first predefined wearing parameter and a second predefined optical function for the prescription of the wearer and to at least a second predefined wearing data parameter, the second predefined optical function being different from the first; and determining an optical function of the progressive ophthalmic lens, so: when the wearing data parameter≥a threshold value, the optical function of the lens=first predefined optical function, and when the wearing data parameter

公开(公告)号：US10942368B2

公开(公告)日：2021-03-09

申请号：US15767698

申请日：2016-10-11

Applicant: Essilor International

Inventor： Benjamin Rousseau ,  Guilhem Escalier ,  Isabelle Poulain ,  Juliette Wierzbicki ,  Laurent Calixte ,  Nacer Lakhchaf ,  Sarah Marie ,  Thierry Bonnin ,  Valerie Jolivet

IPC: G02C7/02 ,  A61B3/113 ,  G02C7/06 ,  G02C13/00 ,  G06F3/01

Abstract: A method for determining an optical system of a personalized progressive lens for a given wearer including: a) providing a mean direction of gaze determined for the wearer in a reference frame tied to the head of the wearer; b) determining a target value for at least one optical design parameter as a function of the mean direction of gaze determined in a); c) calculating the optical system of the progressive lens by an optical optimization procedure on the basis of target values, wherein the target value of each optical design parameter as a function of the mean direction of gaze determined in b) is a target value.