Method for determining an ophthalmic lens

    公开(公告)号:US11561414B2

    公开(公告)日:2023-01-24

    申请号:US17261747

    申请日:2019-08-27

    IPC分类号: G02C7/06 G02C7/02

    摘要: A method for determining an ophthalmic lens adapted to a wearer, the method including: receiving wearer data including at least the ophthalmic prescription of the wearer; receiving a set of object points associated with target optical performances based on the wearer data; determining an ophthalmic lens adapted to the wearer, the ophthalmic lens providing optical performances, for light rays propagating from the set of object points to the center of rotation of the eye of the wearer passing through the ophthalmic lens, the closest to the target optical performances.

    Methods for determining a progressive ophthalmic lens
    2.
    发明授权
    Methods for determining a progressive ophthalmic lens 有权
    确定渐进式眼科镜片的方法

    公开(公告)号:US09557578B2

    公开(公告)日:2017-01-31

    申请号:US14426441

    申请日:2013-09-06

    IPC分类号: G02C7/00 G02C7/02 G02C7/06

    摘要: Methods for determining a progressive ophthalmic lens are described, the lens comprising a near and a far vision area, a main meridian separating the lens into a nasal and a temporal area. The method includes determining a first and a second surface of the lens, determining the second surface to provide, in combination with the first surface, vision correcting properties, and determining a spherical area on the first surface of the lens having a constant sphere value and including a far vision diopter measurement position. The far vision diopter measurement position and a near vision diopter measurement position have substantially the same mean sphere value. The method also includes determining the first surface to reduce the lens distortion by defining a toric area extending outside the spherical area on the first surface in at least one of the nasal and the temporal area, in which characteristics of the toric area are related to the lens astigmatism.

    摘要翻译: 描述了用于确定渐进式眼科镜片的方法,所述透镜包括近视远视区域,主透镜将透镜分离为鼻腔和颞区。 该方法包括确定透镜的第一表面和第二表面,确定第二表面以与第一表面组合提供视力校正特性,以及确定具有恒定球体值的透镜的第一表面上的球面区域,以及 包括远视屈光度测量位置。 远视屈光度测量位置和近视屈光度测量位置具有基本上相同的平均球面值。 该方法还包括确定第一表面以通过在至少一个鼻部和颞部区域中限定延伸到第一表面上的球形区域之外的复曲面区域来减小透镜变形,其中复曲面区域的特征与该区域的特征相关 镜片散光。

    Method for determining an optical equipment

    公开(公告)号:US10451893B2

    公开(公告)日:2019-10-22

    申请号:US14896093

    申请日:2014-06-06

    摘要: Method implemented by computer for determining an optical equipment including at least an optical lens and a spectacle frame, the lens being adapted to be mounted in the frame, the method including: a wearer data providing step, during which wearer data relating to the wearer's optical requirements is provided, an optical cost function providing step, during which an optical cost function is provided, the optical cost function relating to the optical function of the lens, a comfort cost function providing step, during which a comfort cost function is provided, the comfort cost function relating to the weight of the optical equipment, an optical equipment determining step, during which the optical equipment that minimizes the difference between a global cost function and a target value of the global cost function is determined, the global cost function being a weighted sum of the optical and comfort cost functions.

    Determining method for an ophthalmic lens with optimized thickness

    公开(公告)号:US11940673B2

    公开(公告)日:2024-03-26

    申请号:US16770421

    申请日:2018-12-05

    IPC分类号: G02C7/02 B29D11/00 B33Y80/00

    摘要: A method of determining at least one parameter of an ophthalmic lens (40) including a complementary optical element (12) obtained by additive manufacturing and configured to provide at least a part of the optical function of the ophthalmic lens, the determining method including a step of providing two characterizing surfaces simulating two opposite surfaces of a complementary optical element (12), the distance between the two characterizing surfaces along a thickness axis (Z) defining the thickness of the complementary optical element; a step of optimizing the distance between the two characterizing surfaces (20) along the thickness axis (Z) so that the thickness of the complementary optical element reaches a thickness threshold while complying with the optical function of the ophthalmic lens (40); and a step of determining at least one parameter of the ophthalmic lens (40) on the basis of the optimized distance.

    Method for additively manufacturing an opthalmic lens and opthalmic lens

    公开(公告)号:US11472141B2

    公开(公告)日:2022-10-18

    申请号:US16770361

    申请日:2018-12-05

    IPC分类号: B29D11/00 B33Y80/00

    摘要: A method of manufacturing an ophthalmic lens, including: a step of providing a starting optical system (30) having a first optical function and a first main refractive index; a step of providing a transition layer (20) intended to be disposed between the starting optical system (30) and a complementary optical element (12) having a second main refractive index, the transition layer (20) aiming at reducing unwanted reflection caused by the mismatch between the first and the second main refractive index, the transition layer (20) having a transition optical function; and a step of additively manufacturing the complementary optical element (12) on the transition layer (20), the complementary optical element (12) having a second optical function, the second optical function being predetermined as a function of the first optical function and of the transition optical function.

    METHODS FOR DETERMINING A PROGRESSIVE OPHTHALMIC LENS
    8.
    发明申请
    METHODS FOR DETERMINING A PROGRESSIVE OPHTHALMIC LENS 有权
    用于确定渐进式眼镜的方法

    公开(公告)号:US20150219924A1

    公开(公告)日:2015-08-06

    申请号:US14426441

    申请日:2013-09-06

    IPC分类号: G02C7/02 G02C7/06

    摘要: A method for determining a progressive ophthalmic lens comprising a near and a far vision area, a main meridian separating the lens into a nasal and a temporal area, the method comprising: determining a first and a second surface of the lens; determining the second surface to provide, in combination with the first surface, the vision correcting properties; determining a spherical area on the first surface of the lens having a constant sphere value and including a far vision diopter measurement position, wherein the far and a near vision diopter measurement position have substantially the same mean sphere value; and determining the first surface to reduce the lens distortion by defining a toric area extending outside the spherical area on the first surface in at least one of the nasal and the temporal area, wherein characteristics of the toric area are related to the lens astigmatism.

    摘要翻译: 一种用于确定渐进式眼科镜片的方法,包括近视和远视区,将子宫分为鼻腔和颞区的主子午线,该方法包括:确定镜片的第一和第二表面; 确定所述第二表面以与所述第一表面组合提供所述视力校正特性; 确定具有恒定球体值并且包括远视屈光度测量位置的透镜的第一表面上的球面区域,其中远和近视屈光度测量位置具有基本上相同的平均球面值; 以及通过在所述鼻部和所述颞部区域中的至少一个中限定延伸到所述第一表面上的所述球形区域外的复曲面区域来确定所述第一表面以减小所述透镜变形,其中所述复曲面区域的特征与所述透镜散光有关。