MULTIFOCAL OCULAR LENS
    1.
    发明专利

    公开(公告)号:JPH11194307A

    公开(公告)日:1999-07-21

    申请号:JP29538298

    申请日:1998-10-16

    Applicant: ESSILOR INT

    Abstract: PROBLEM TO BE SOLVED: To assure wearing person's good visual comfortableness, a high near sight region and a wide visual field in the near sight region, intermediate sight region and far sight region. SOLUTION: This lens is the multifocal ocular lens including the far sight region VL, the near sight region VP and the intermediate sight region VI and has the wide visual field in the near sight region VP, the intermediate sight region VI and the far sight region VL. Although the distance between the mounting center on the lens and the point at which a magnification increment is higher by 85% than the magnification increment at a far sight control point is shorter than 16 mm, a progression is gentle and simultaneously the max. cylinder value on the inner side of a radius 20 mm aligned to the geometrical center of the lens is maintained at a low value.

    METHOD FOR DECIDING LENS OF SPECTACLES

    公开(公告)号:JP2000111846A

    公开(公告)日:2000-04-21

    申请号:JP27507799

    申请日:1999-09-28

    Applicant: ESSILOR INT

    Abstract: PROBLEM TO BE SOLVED: To acquire a lens having excellent optical characteristic and suitable for a person who wears spectacles for astigmatism by correcting a working lens so that a difference between the power of the working lens and the power of a target lens and a difference between the residual astigmatism and the astigmatism of the target lens may be minimized. SOLUTION: The working lens is corrected so that the difference between the power of the working lens and the power of the target lens and the difference between the residual astigmatism and the astigmatism of the target lens may be minimized in a reference frame related to an eye in plural line-of-sight directions corresponding to a point (j) on a top sphere and defined by using spherical coordinates by two angles. The residual astigmatism is defined as the difference between the prescribed astigmatism and the astigmatism generated by the working lens with respect to amplitude and an axial center in the reference frame related to the eye and in the respective line-of-sight directions.

    METHOD OF MANUFACTURING AN OPTICAL SYSTEM
    3.
    发明申请
    METHOD OF MANUFACTURING AN OPTICAL SYSTEM 审中-公开
    制造光学系统的方法

    公开(公告)号:WO2007017766A2

    公开(公告)日:2007-02-15

    申请号:PCT/IB2006003220

    申请日:2006-08-01

    Abstract: The invention relates to a method of calculating an optical system (OS), the optical system (OS) being identified by a function (OF), the optical system (OS) comprising a first part (Fl) defined by a first equation (EFl) and a second part (F2) defined by a second equation (EF2), the method comprising: - a generating step (GEN), in which a virtual optical system (VOS) is used to generate a virtual function (VOF); - a modification step (MOD), in which the virtual function (VOF) is modified so as obtain the function (OF); - a calculation step (CAL), in which the second equation (EF2) is calculated from the function (OF), and the first equation (EFl). The invention relates also to a method of manufacturing an optical system (OS).

    Abstract translation: 本发明涉及一种计算光学系统(OS)的方法,所述光学系统(OS)由函数(OF)标识,所述光学系统(OS)包括由第一方程(EF1)定义的第一部分(F1) )和由第二方程(EF2)定义的第二部分(F2),所述方法包括: - 生成步骤(GEN),其中使用虚拟光学系统(VOS)来生成虚拟功能(VOF); - 修改步骤(MOD),其中修改虚拟函数(VOF)以获得函数(OF); - 计算步骤(CAL),其中从函数(OF)和第一方程(EF1)计算第二方程(EF2)。 本发明还涉及制造光学系统(OS)的方法。

    Optical element comprising at least one holographic diffusive element

    公开(公告)号:AU2021325316B2

    公开(公告)日:2025-03-20

    申请号:AU2021325316

    申请日:2021-08-03

    Applicant: ESSILOR INT

    Abstract: The disclosure relates to an optical element intended to be worn in front of an eye of a wearer. The optical element has two main surfaces and comprises at least one holographic diffusive element having diffusive properties resulting from spatial variations of refractive index of said holographic diffusive element. The spatial variation of refractive index is greater than 0.001 at at least one given wavelength, on a distance less than 30μm. The disclosure also comprises an optical equipment comprising such an optical element and methods for recording a holographic medium onto an optical lens.

    ЭЛЕМЕНТ В ВИДЕ ЛИНЗЫ

    公开(公告)号:RU2757820C1

    公开(公告)日:2021-10-21

    申请号:RU2020131333

    申请日:2019-03-01

    Applicant: ESSILOR INT

    Abstract: Элементв виделинзы, предназначенныйдляношенияпередглазом, содержитобластьпреломления, обладающуюпреломляющейспособностью, основаннойнарецептедляуказанногоглазаносящего; имножествоизпоменьшеймередвухнепрерывныхоптическихэлементов. Поменьшеймереодиноптическийэлементобладаетоптическойфункциейнефокусироватьизображениенасетчаткеглазаносящегодлятого, чтобызамедлитьпрогрессированиеаномальногопреломленияглаза. Элементв виделинзыдополнительносодержитпоменьшеймеречетыреоптическихэлемента, которыеорганизованыв видепоменьшеймередвухгруппнепрерывныхоптическихэлементов, приэтомкаждаягруппанепрерывныхоптическихэлементоворганизованав видепоменьшеймередвухконцентрическихколец, имеющихобщийцентр. Концентрическоекольцокаждойгруппыопределеновнутреннимдиаметром, соответствующимнаименьшейокружности, касательнойк поменьшеймереодномуоптическомуэлементууказаннойгруппы, ивнешнимдиаметром, соответствующимнаибольшейокружности, касательнойк поменьшеймереодномуизоптическихэлементовуказаннойгруппы. Техническийрезультат– подавлениеилизамедлениепрогрессированияаномальногопреломленияглаза. 13 з.п. ф-лы, 22 ил.

    6.
    发明专利
    未知

    公开(公告)号:AT498856T

    公开(公告)日:2011-03-15

    申请号:AT06290651

    申请日:2006-04-21

    Applicant: ESSILOR INT

    Abstract: The lens has a power addition prescription and a complex surface presented with a fitting cross. A far vision zone has a control point, and a near vision zone has a control point and an intermediate vision zone. A principal meridian of progression passes via the three zones. A reduced root mean square deviation is normalized to the addition prescription of less than a specific decimal value of microns per dioptre over a zone that includes the far vision control point. A progression length is defined as an angle of lowered viewing from the fitting cross down to the point on the meridian. An independent claim is also included for a method of correcting the vision of a presbyopic subject.

    METHOD OF MANUFACTURING AN OPTICAL SYSTEM

    公开(公告)号:CA2618336A1

    公开(公告)日:2007-02-15

    申请号:CA2618336

    申请日:2006-08-01

    Applicant: ESSILOR INT

    Abstract: The invention relates to a method of calculating an optical system (OS), the optical system (OS) being identified by a function (OF), the optical system (OS) comprising a first part (Fl) defined by a first equation (EFl) and a second part (F2) defined by a second equation (EF2), the method comprising: - a generating step (GEN), in which a virtual optical system (VOS) is used to generate a virtual function (VOF); - a modification step (MOD), in which the virtual function (VOF) is modified so as obtain the function (OF); - a calculation step (CAL), in which the second equation (EF2) is calculated fro m the function (OF), and the first equation (EFl). The invention relates also to a method of manufacturing an optical system (OS).

    MULTIFOCAL OPHTHALMIC LENS
    10.
    发明专利

    公开(公告)号:CA2250571C

    公开(公告)日:2006-03-21

    申请号:CA2250571

    申请日:1998-10-15

    Applicant: ESSILOR INT

    Abstract: A multifocal ophthalmic lens comprising a far vision region, a near vision region and an intermediate vision region is provided having a high near vision region and a wide vision field in the near vision region, the intermediate vision region and in the far vision region. Progression is gentle although the distance between a mounting center on the lens and the point where power addition is 85% higher than power addition at a far vision control point is less than 16 mm, while simultaneously maximum cylinder inside a 20 mm radius circle centered on a geometrical center of the lens is kept at a low value.

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