Method for optical design of a pair of ophthalmic lenses and pair of ophthalmic lenses thus obtained

    公开(公告)号:US10247963B2

    公开(公告)日:2019-04-02

    申请号:US15522474

    申请日:2014-10-31

    Abstract: Disclosed is a method for optical design of a pair of ophthalmic lenses for correcting spherical and cylindrical refractive errors of the eyes of a wearer, including a step of defining the need for spherical and cylindrical correction of the wearer for various viewing distances, and a step of determining the spherical and cylindrical power of the ophthalmic lenses at viewing points with various proximities, in accordance with the correction needs of the wearer. The power of at least one of the two ophthalmic lenses is determined such as to limit the deviation obtained therebetween upon adding equivalent spherical power between the viewing points with various proximities and/or varying the cylindrical power vector between the viewing points with various proximities. Also disclosed is a pair of ophthalmic lenses designed according to such a method.

    Method for determining wave-front aberration data of a to-be-tested optical system

    公开(公告)号:US10045690B2

    公开(公告)日:2018-08-14

    申请号:US14897205

    申请日:2014-06-09

    Abstract: A method for determining wave-front aberration data of a to-be-tested optical system comprising the steps of: a) providing a wave-front sensing image of light received from the tested optical system; b) providing a model representative of the optical system with at least an optical parameter representative of said model; and c) optimizing a set of wave-front coefficient data and said at least optical parameter of said model according to a merit function calculating the merit function comprises the steps of generating a wave-front sensing modeled image of light received from said model by the at least optical parameter and the set of wave-front coefficient data, and calculating a criteria based on shape parameter data of the wave-front sensing image and shape parameter data of the wave-front sensing modeled image, so as to obtain wave-front aberration data of the tested optical system.

    Method for determining the clyinder of an ophthalmic lens

    公开(公告)号:US11409131B2

    公开(公告)日:2022-08-09

    申请号:US16609629

    申请日:2018-05-02

    Abstract: A method for determining a cylinder of an ophthalmic lens to be mounted on a spectacle frame is provided, the method including: providing a measuring device configured to run a Jackson Cross Cylinder procedure; determining components of a first vector of the cylinder in a two-dimensional vector cylinder representation; and determining components of a second vector of the cylinder in the two-dimensional vector cylinder representation, the components of the second vector of the cylinder being determined such that a Euclidian distance between the first vector and the second vector is independent of a value of the cylinder.

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