par de lentes oftálmicas progressivas

    公开(公告)号:BR112015019458A2

    公开(公告)日:2021-05-25

    申请号:BR112015019458

    申请日:2014-02-12

    Applicant: ESSILOR INT

    Abstract: par de lentes oftálmicas progressivas. a presente invenção refere-se a um par de lentes oftálmicas progressivas (1, 2) que encontra condições especiais para aprimorar a visão binocular de um usuário, enquanto evita desconforto para visão periférica. uma primeira dentre as ditas condições relaciona-se com valores de altura de campos de visão afastada, campos de visão intermediária e/ou campos de visão próxima, para indicar que os ditos campos são diferentes o suficiente em termos de altura entre ambas as lentes. uma segunda dentre as ditas condições estabelece um valor máximo para a diferença relativa em gradiente de potência média de refração entre ambas as lentes.

    СПОСОБ ПРОЕКТИРОВАНИЯ ПАРЫ ПРОГРЕССИВНЫХ ОФТАЛЬМОЛОГИЧЕСКИХ ЛИНЗ

    公开(公告)号:EA026853B1

    公开(公告)日:2017-05-31

    申请号:EA201401246

    申请日:2013-06-28

    Abstract: Процессвключаетопределениепредписаннойсреднейпреломляющейспособностизрениянабольшоерасстояниеи аддидациидлякаждойлинзыизпары; определениенаправлениячтенияпользователя; установлениевисочнойстороныи назальнойсторонынакаждойлинзеизпары; установлениенакаждойиспользуемойлинзеи длякаждогонаправлениявзглядапреломляющейспособностии модулярезультирующегоастигматизма, приэтомкаждоенаправлениевзглядасоответствуетуглуспускаи углуазимута; установлениенаправлениявзглядадлязрениявблизидлякаждойлинзыизпары; установлениедлякаждойлинзыизпарывисочногополяполовиннойшириныпреломляющейспособностив качествеугловогорасстояния, подпостояннымугломспуска, междунаправлениемвзглядадлязрениявблизии направлениемвзгляданависочнойсторонелинзы, гдепреломляющаяспособностьдостигаетзначенияпредписаннойсреднейпреломляющейспособностизрениянабольшоерасстояниеплюстричетвертипредписаннойаддидации; установлениедлякаждойлинзыизпарыназальногополяполовиннойшириныпреломляющейспособностив качествеугловогорасстояния, подпостояннымугломспуска, междунаправлениемвзглядадлязрениявблизии направлениемвзглядананазальнойсторонелинзы, гдепреломляющаяспособностьдостигаетзначенияпредписаннойсреднейпреломляющейспособностизрениянабольшоерасстояниеплюстричетвертипредписаннойаддидации; установлениедлякаждойлинзыизпарывисочногополяполовиннойширинымодулярезультирующегоастигматизмав качествеугловогорасстояния, подпостояннымугломспуска, междунаправлениемвзглядадлязрениявблизии направлениемвзгляданависочнойсторонелинзы, гдемодульрезультирующегоастигматизмадостигаетзначенияоднойчетвертипредписаннойаддидации; иустановлениедлякаждойлинзыизпарыназальногополяполовиннойширинымодулярезультирующегоастигматизмав качествеугловогорасстояния, подпостояннымугломспуска, междунаправлениемвзглядадлязрениявблизии направлениемвзглядананазальнойсторонелинзы, гдемодульрезультирующегоастигматизмадостигаетзначенияоднойчетвертипредписаннойаддидации. Отношениеразницык суммевисочногои назальногополейполовиннойшириныпреломляющейспособностии/илиотношениеразницык суммевисочногои назальногополейполовиннойширинымодулярезультирующегоастигматизмаопределяютдлякаждойлинзыизпарынаоснованиинаправлениячтения, определенногодляпользователя.

    A process for determining a pair of progressive ophthalmic lenses

    公开(公告)号:AU2013283260B2

    公开(公告)日:2016-06-16

    申请号:AU2013283260

    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.

    A PROCESS FOR DETERMINING A PAIR OF PROGRESSIVE OPHTHALMIC LENSES

    公开(公告)号:IN2113MUN2014A

    公开(公告)日:2015-09-11

    申请号:IN2113MUN2014

    申请日:2014-10-21

    Applicant: ESSILOR INT

    Abstract: The process comprises: determining prescribed far vision mean power and addition for each lens of the pair; determining a reading direction for the 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 reading direction determined for the wearer.

    A method for determining target optical functions

    公开(公告)号:NZ613171A

    公开(公告)日:2015-08-28

    申请号:NZ61317112

    申请日:2012-02-17

    Applicant: ESSILOR INT

    Abstract: A method for determining target optical functions for a pair of ophthalmic lenses is disclosed. The method comprising steps of: - generating a first target optical function (OFT1) for a first lens of the pair based at least on data relating to a first eye, - generating a second target optical function (OFT2) for a second lens of the pair based at least on data relating to the first eye. This method makes it possible to obtain optical functions having improved symmetry. Thus, when using the target optical functions in an optical optimization method, lenses with improved binocular properties can be obtained. The comfort of the wearer of the pair of lenses is improved.

    A METHOD FOR DERTEMINING TARGET OPTICAL FUNCTIONS

    公开(公告)号:ZA201305310B

    公开(公告)日:2014-09-25

    申请号:ZA201305310

    申请日:2013-07-15

    Abstract: A method for determining target optical functions for a pair of ophthalmic lenses is provided, the method comprising steps of: - generating a first target optical function (OFT1) for a first lens of the pair based at least on data relating to a first eye, - generating a second target optical function (OFT2) for a second lens of the pair based at least on data relating to the first eye. This method makes it possible to obtain optical functions having improved symmetry. Thus, when using the target optical functions in an optical optimization method, lenses with improved binocular properties can be obtained. The comfort of the wearer of the pair of lenses is thus improved.

    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.

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