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34 条记录 (耗时 0.012 秒)

    Toric lens
    13.
    发明公开
    Toric lens 审中-公开
    Torische Linse

    公开(公告)号：EP2955566A1

    公开(公告)日：2015-12-16

    申请号：EP14179695.3

    申请日：2014-08-04

    申请人： Pegavision Corporation

    发明人： Skudder, Colin

    IPC分类号： G02C7/02 ,  G02C7/04

    CPC分类号： G02C7/022 ,  G02C7/02 ,  G02C7/04 ,  G02C7/045 ,  G02C7/047 ,  G02C7/048 ,  G02C2202/02 ,  G02C2202/06

    摘要： A toric lens includes a first surface, a second surface, two first sector zones, and two second sector zones. The first surface and the second surface are opposite to each other. Each of the first sector zones has a first curvature on the first surface along a radial direction of the toric lens, and the first curvature is constant along an arc direction of the toric lens. The two second sector zones are alternately arranged with the two first sector zones. Each of the second sector zones has a second curvature on the first surface along the radial direction, and the second curvature is constant along the arc direction. The first curvature is steeper than the second curvature.

    摘要翻译： 复曲面透镜包括第一表面，第二表面，两个第一扇区区域和两个第二扇区区域。 第一表面和第二表面彼此相对。 每个第一扇区区域沿着复曲面透镜的径向在第一表面上具有第一曲率，并且第一曲率沿复曲面透镜的圆弧方向是恒定的。 两个第二扇区区域与两个第一扇区区域交替布置。 第二扇形区域中的每一个沿着径向在第一表面上具有第二曲率，并且第二曲率沿圆弧方向是恒定的。 第一曲率比第二曲率更陡。

    A METHOD FOR DETERMINING A PROGRESSIVE OPHTHALMIC LENS
    14.
    发明公开
    A METHOD FOR DETERMINING A PROGRESSIVE OPHTHALMIC LENS 审中-公开
    方法定义的使用多焦点透镜学报

    公开(公告)号：EP2893393A2

    公开(公告)日：2015-07-15

    申请号：EP13771406.9

    申请日：2013-09-06

    申请人： Essilor International (Compagnie Générale d'Optique)

    发明人： MOINE, Jérôme ,  BENOIT, Céline ,  BROUTIN, Guillaume ,  REGO, Carlos ,  ROUSSEL, Olivier

    IPC分类号： G02C7/06

    CPC分类号： G02C7/027 ,  G02C7/028 ,  G02C7/066 ,  G02C7/068 ,  G02C2202/02 ,  G02C2202/08

    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.

    Aberration correction spectacle lens
    19.
    发明公开
    Aberration correction spectacle lens 有权
    眼镜镜片用于校正像差

    公开(公告)号：EP1262815A3

    公开(公告)日：2005-02-23

    申请号：EP02253785.6

    申请日：2002-05-30

    申请人： VISIONIX LTD.

    发明人： Abitbol, Marc

    IPC分类号： G02C7/02 ,  G02C7/04 ,  G02C13/00 ,  A61B3/103

    CPC分类号： G02C7/02 ,  A61F2/1637 ,  A61F2240/002 ,  G02C7/027 ,  G02C7/028 ,  G02C2202/02 ,  G02C2202/22

    摘要： A novel method for the design and construction of a spectacle lens for the correction of human vision, including the correction of high order aberrations. The lens enables the provision of super-normal vision using spectacles. Different lenses are described for use at a partial or a fuller field of view. The method applies corrective measures based on data obtained from high order wave front measurements of the subject's eye. According to one method, the Modulation Transfer Function (MTF) of the overall eye and lens optical system is optimized. According to another method, the optimization is performed on the wavefront of the overall eye and lens optical system. Both methods use weighted functions in the optimization procedure. This method of high order aberration correction is also applicable for the design of contact lenses and intra-ocular lenses, and for the execution of refractive eye surgery.

    Concentric annular ring lens designs for astigmatism
    20.
    发明公开
    Concentric annular ring lens designs for astigmatism 失效
    Linsen mit konzentrischen RingenfürWeitsichtigkeitskorrektur

    公开(公告)号：EP1376203A2

    公开(公告)日：2004-01-02

    申请号：EP03077133.1

    申请日：1996-05-03

    申请人： JOHNSON & JOHNSON VISION PRODUCTS, INC.

    发明人： Roffman, Jeffrey H. ,  Menezes, Edgar V.

    IPC分类号： G02C7/02

    CPC分类号： G02C7/044 ,  G02C7/042 ,  G02C7/048 ,  G02C7/06 ,  G02C2202/02

    摘要： Concentric annular ring lens designs are disclosed for astigmatic patients, particularly lens designs which reduce the sensitivity of the patient to toric axis misalignment, thus reducing the required number of stock keeping units in inventory for a toric product. Several of the concentric annular ring lens designs comprise a multifocal concentric annular ring design on either the front or back surface and a toric curve on the reverse surface to correct for astigmatism. Alternating concentric annular rings divide the optical zone of the contact lens into regions having at least two optical powers, a first optical power corresponding to the refractive spherical component of a patient's basic prescription Rx, and a second optical power corresponding to the cylindrical power of a patient's basic prescription Rx, or a portion thereof, with an optional third intermediate optical power, such that the multifocus toric lens is rotationally desensitized because of the enhanced depth-of-field provided by the plurality of concentric annular rings. Some embodiments of the present invention have a spherical front or back surface wherein the opposite surface has a plurality of toric annular rings. Some embodiments of the present invention eliminate a toric surface, prism ballast and slab-off features, and provide spherical optical powers at the basic prescription Rx spherical power, the cylindrical power prescription Rx, and an intermediate optical power intermediate to the spherical and cylindrical optical powers.

    摘要翻译： 公开了用于散光患者的同心环形透镜设计，特别是降低患者对复曲面轴未对准的灵敏度的透镜设计，从而减少了复曲面产品库存中所需的库存数量。 多个同心环形环形透镜设计包括在前表面或后表面上的多焦点同心圆环设计和反面上的复曲面曲线以校正散光。 交替的同心环形环将隐形眼镜的光学区域分成具有至少两个光焦度的区域，对应于患者基本处方Rx的折射球形分量的第一光学功率和对应于患者基本处方Rx的圆柱形光焦度的第二光学功率 患者的基本处方Rx或其一部分具有可选的第三中间光学功率，使得多焦点复曲面透镜由于由多个同心环形环提供的增强的景深而被旋转地脱敏。 本发明的一些实施例具有球形前表面或后表面，其中相对表面具有多个复曲面环形环。 本发明的一些实施例消除了复曲面，棱镜镇流器和平坦度特征，并且在基本处方Rx球面光焦度，圆柱形功率处方Rx和中间光功率中间提供球面光焦度到球面和圆柱形光学 权力。