A PROCESS FOR DETERMINING A PAIR OF PROGRESSIVE OPHTHALMIC LENSES

    公开(公告)号:CA2873522A1

    公开(公告)日:2014-01-03

    申请号:CA2873522

    申请日:2013-06-28

    Applicant: ESSILOR INT

    Abstract: The process comprises: determining prescribed far vision mean power and addition for each lens of the pair; determining laterality of a wearer; defining a temporal side and a nasal side on each lens of the pair; defining, on each lens being worn and for each gaze direction, a refractive power and a module of resulting astigmatism, each gaze direction corresponding to a lowering angle and to an azimuth angle; defining a proximate vision gaze direction for each lens of the pair; defining, for each lens of the pair, a temporal half-width field of refractive power as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the temporal side of the lens where the refractive power reaches the value of the prescribed far vision mean power plus three quarters of the prescribed addition; defining, for each lens of the pair, a nasal half-width field of refractive power as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the nasal side of the lens where the refractive power reaches the value of the prescribed far vision mean power plus three quarters of the prescribed addition; defining, for each lens of the pair, a temporal half-width field of module of resulting astigmatism as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the temporal side of the lens where the module of resulting astigmatism reaches the value of one quarter of the prescribed addition; and defining, for each lens of the pair, a nasal half-width field of module of resulting astigmatism as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the nasal side of the lens where the module of resulting astigmatism reaches the value of one quarter of the prescribed addition. The ratio of the difference over the sum of temporal and nasal half-width fields of refractive power and/or the ratio of the difference over the sum of temporal and nasal half-width fields of module of resulting astigmatism are determined for each lens of the pair based on the laterality of the wearer.

    ОФТАЛЬМОЛОГИЧЕСКИЕ ОЧКИ С ВОЗМОЖНОСТЬЮ ХАРАКТЕРИЗАЦИИ КОНВЕРГЕНЦИИ ГЛАЗ ПОЛЬЗОВАТЕЛЯ

    公开(公告)号:EA018695B1

    公开(公告)日:2013-09-30

    申请号:EA201101611

    申请日:2010-05-07

    Applicant: ESSILOR INT

    Abstract: Визобретенииофтальмологическиеочкивыполненыс возможностьюхарактеризацииконвергенцииглаз (100, 200) пользователя. Каждаялинза (1, 2) очковсодержитвыходныесекциидлянаправленияизлученияв глазныезоны (ZD1, ZD2, ZG1, ZG2) глаза, гдеперемещаютсяправыйи левыйучасткилимба (L) глаза. Линзадополнительносодержитвходныесекциидлясборачастейизлучения, отраженногов указанныхбоковыхзонахглаза. Сочкамисвязантакжевычислительныйблокдляопределенияконвергенцииглазпользователянаоснованиисигналовобнаружения, измеряющихчастиизлучения, собираемыеодновременновходнымисекциямидвухлинз.

    VERRE DE LUNETTES ADAPTE POUR CORRIGER UN DEFAUT OCULAIRE DE COMA

    公开(公告)号:FR2946437A1

    公开(公告)日:2010-12-10

    申请号:FR0953806

    申请日:2009-06-09

    Applicant: ESSILOR INT

    Abstract: Un verre de lunettes est adapté pour corriger un défaut oculaire de coma. Pour cela, une distribution d'épaisseur (SR) du verre possède une décomposition en polynômes de Zernike dont les sixième et septième coefficients sont opposés. Les termes de la décomposition correspondant aux sixième et septième polynômes de Zernike produisent alors une contribution à la distribution d'épaisseur qui est invariante par translation perpendiculairement à une direction principale (x) du défaut oculaire de coma. Un tel verre est adapté notamment pour un sujet atteint de kératocône.

    PAIRE DE LUNETTES OPHTALMIQUES ADAPTEE POUR CARACTERISER UNE DIRECTION DE REGARD D'UN PORTEUR.

    公开(公告)号:FR2945435A1

    公开(公告)日:2010-11-19

    申请号:FR0953127

    申请日:2009-05-12

    Applicant: ESSILOR INT

    Abstract: Une paire de lunettes ophtalmiques est adaptée pour caractériser une direction de regard d'un porteur. Chaque verre (1, 2) de la paire de lunettes est muni de sections de sortie pour diriger un rayonnement vers des zones oculaires (ZD1, ZG1, ZD2, ZG2) du porteur, où se déplacent des portions différentes d'un limbe oculaire (L) dudit porteur. Ledit verre est muni en outre de sections d'entrée pour collecter des parties dudit rayonnement réfléchies dans lesdites zones oculaires. Une unité de calcul est aussi associée à la paire de lunettes, pour déterminer la direction de regard du porteur à partir de signaux de détection mesurant les parties de rayonnement qui sont collectées simultanément par les sections d'entrée des deux verres.

    66.
    发明专利
    未知

    公开(公告)号:FR2903503B1

    公开(公告)日:2009-06-12

    申请号:FR0652840

    申请日:2006-07-06

    Applicant: ESSILOR INT

    Abstract: The invention provides an eyesight correcting lens having a front face and a rear face, and into which light beams emitted by a light beam generator system are introduced via an inlet surface and directed towards the eye of an ametropic wearer of said lens to enable information content to be viewed, an optical insert being included in the lens, said lens being arranged so as to enable the wearer of said lens to provide an accommodation effort that is less than or equal to 2D when viewing the information content.

    DISPOSITIF D'AFFICHAGE POUR LA VISUALISATION STEREOSCOPIQUE.

    公开(公告)号:FR2906899A1

    公开(公告)日:2008-04-11

    申请号:FR0654111

    申请日:2006-10-05

    Applicant: ESSILOR INT

    Abstract: La présente invention concerne un dispositif d'affichage pour la visualisation stéréoscopique comprenant un système binoculaire de visualisation, un contenu informatif, et une source d'affichage.Le dispositif d'affichage est remarquable en ce qu'il comprend en outre des composants électroniques pour la mise en oeuvre de logiciels d'optimisation du système binoculaire de visualisation, du contenu informatif, et de la source d'affichage, lesdits logiciels d'optimisation formant ensemble une boucle de gestion de différents paramètres.Le porteur dudit dispositif peut ainsi visualiser le contenu informatif par l'intermédiaire du système binoculaire de visualisation dans des conditions les plus adaptées à sa physiologie.

    68.
    发明专利
    未知

    公开(公告)号:FR2894683B1

    公开(公告)日:2008-02-15

    申请号:FR0553846

    申请日:2005-12-13

    Applicant: ESSILOR INT

    Abstract: The invention relates to an ophthalmic display comprising: a generator system for generating light beams; an optical imager for shaping light beams emitted by a miniature screen of said light beam generator system, which beams are introduced into said imager via an inlet face, and for directing said beams towards the eye of a wearer in order to enable an image to be viewed; an adapter in a reference position relative to said imager; and a connection arrangement carried by said light beam generator system for connection to said adapter, the connection between said system and said adapter being releasable. According to the invention, said adapter is constituted by at least two magnets for co-operating by the magnetic effect and by interengagement with at least two magnets carried by said connection arrangement.

    LENTILLE OPHTALMIQUE A INSERT OPTIQUE INTEGRE DESTINE A PERMETTRE LA PROJECTION D'INFORMATIONS

    公开(公告)号:FR2903503A1

    公开(公告)日:2008-01-11

    申请号:FR0652840

    申请日:2006-07-06

    Applicant: ESSILOR INT

    Abstract: L'invention a pour objet une lentille de correction de la vue comportant une face avant et une face arrière et dans laquelle des faisceaux optiques, émis d'un système de génération de faisceaux optiques, sont introduits par une surface d'entrée et dirigés vers l'oeil d'un porteur amétrope de ladite lentille pour permettre la visualisation d'un contenu informationnel, un insert optique étant inclus dans la lentille, ladite lentille étant agencée afin de permettre au porteur de ladite lentille d'avoir un effort accomodatif inférieur ou égal à 2D lors de la visualisation du contenu informationnel.

    A PROCESS FOR DETERMINING A PAIR OF PROGRESSIVE OPHTHALMIC LENSES

    公开(公告)号:CA2873522C

    公开(公告)日:2020-08-25

    申请号:CA2873522

    申请日:2013-06-28

    Applicant: ESSILOR INT

    Abstract: The process comprises: determining prescribed far vision mean power and addition for each lens of the pair; determining laterality of a wearer; defining a temporal side and a nasal side on each lens of the pair; defining, on each lens being worn and for each gaze direction, a refractive power and a module of resulting astigmatism, each gaze direction corresponding to a lowering angle and to an azimuth angle; defining a proximate vision gaze direction for each lens of the pair; defining, for each lens of the pair, a temporal half-width field of refractive power as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the temporal side of the lens where the refractive power reaches the value of the prescribed far vision mean power plus three quarters of the prescribed addition; defining, for each lens of the pair, a nasal half-width field of refractive power as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the nasal side of the lens where the refractive power reaches the value of the prescribed far vision mean power plus three quarters of the prescribed addition; defining, for each lens of the pair, a temporal half-width field of module of resulting astigmatism as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the temporal side of the lens where the module of resulting astigmatism reaches the value of one quarter of the prescribed addition; and defining, for each lens of the pair, a nasal half-width field of module of resulting astigmatism as the angular distance, at constant lowering angle, between the proximate vision gaze direction and a gaze direction on the nasal side of the lens where the module of resulting astigmatism reaches the value of one quarter of the prescribed addition. The ratio of the difference over the sum of temporal and nasal half-width fields of refractive power and/or the ratio of the difference over the sum of temporal and nasal half-width fields of module of resulting astigmatism are determined for each lens of the pair based on the laterality of the wearer.

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