Method for determining an optical criterion for a design of a sport-adapted optical lens

    公开(公告)号:US12044903B2

    公开(公告)日:2024-07-23

    申请号:US17256846

    申请日:2019-07-24

    CPC classification number: G02C7/027 G02C7/025 G02C7/061

    Abstract: A method for determining an optical design criterion for designing an optical lens adapted to a sport practice, the method including: defining an evaluation axis for evaluating sensory/motor/cognitive requirement of a sport practice, for each of a plurality of sports; attributing a score to the sport practice on each evaluation axis; determining clusters of sports in which practices have similar score; determining at least one visual need corresponding to each cluster of sports; determining, for each cluster, at least one optical design criterion as a function of the associated visual need; and storing in a memory a record for each cluster, along with each optical design criterion associated with the cluster.

    Spectacles for presbyopia treatment and myopia progression control and associated methods

    公开(公告)号:US11947197B2

    公开(公告)日:2024-04-02

    申请号:US17174910

    申请日:2021-02-12

    CPC classification number: G02C7/061 G02C2202/24

    Abstract: A wearable optical device increases a Resolvable Object Distance Range (RODR) thereby reducing focusing demands of a plurality of objects located along a visual angle distance for a user with presbyopia or myopia. The devise includes a negative refractive element and a positive refractive element located along an optical axis. The negative refractive element and the positive refractive element are separated from each other by a separation space and at a separation distance suitable for mounting on a spectacle. A surface of a non-central zone of the negative refractive element or the positive refractive element is a Fresnel surface. The separation space is filled by an intermediate media with a refractive index lower than that of the negative refractive element or the positive refractive element. In one embodiment, the intermediate media is an optical grade resin or polymer. In another embodiment, a spacing seal is located around a periphery of the separation space, and the intermediate media is a low-humidity gas for reducing condensation within the separation space during ambient temperature changes.

    PROGRESSIVE LENS AND PROGRESSIVE GLASSES USING THE SAME

    公开(公告)号:US20190204621A1

    公开(公告)日:2019-07-04

    申请号:US16018180

    申请日:2018-06-26

    Inventor: WEN-KAI LI

    CPC classification number: G02C7/061 A63B33/002

    Abstract: A progressive lens has an optical center and a geometric center line. The progressive lens further comprises a first surface and a second surface. At least one of the first surface and the second surface is a free-form surface. The free-form surface comprises a nearsight region, a farsight region, and a transition region. The geometric center line passes through the nearsight region, the optical center, and the farsight region. A straight-line distance between a first reference point of the nearsight region and the optical center along a direction of the geometric center line is about 13 mm to about 25 mm. A straight-line distance between a second reference point of the farsight region and the optical center along a direction of the geometric center line is about 2 mm to about 5 mm. The disclosure also provides a progressive glasses.

    METHOD FOR DETERMINING A PROGRESSIVE OPHTHALMIC DEVICE FOR PERSONALISED VISUAL COMPENSATION FOR AN INDIVIDUAL

    公开(公告)号:US20190204620A1

    公开(公告)日:2019-07-04

    申请号:US16330011

    申请日:2017-08-30

    CPC classification number: G02C7/027 G02C7/047 G02C7/061

    Abstract: The invention relates to a method for determining a progressive ophthalmic device for personalised visual compensation for an individual, according to which the following steps are performed: a) in a first data acquisition phase, determining at least at a first time preceding the appearance of the presbyopia of this individual, at least one value of at least one individual parameter of said individual, and recording each value of the individual parameter of the wearer in a database, in correlation with an associated temporal indicator, b) in a second determination step of the progressive ophthalmic device for personalised visual compensation, determining a desired value of at least one geometric or optical parameter of said progressive ophthalmic device for visual compensation, taking account of said at least one value of the individual parameter determined in step a) and the associated temporal indicator.

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