A SYSTEM AND A METHOD FOR MONITORING THE POSITION OF A BLOCKING DEVICE, AND A METHOD OF EDGING AN OPHTHALMIC LENS

    公开(公告)号:US20200233235A1

    公开(公告)日:2020-07-23

    申请号:US16652756

    申请日:2018-10-02

    Abstract: A system for monitoring the position of a blocking device on an ophthalmic lens (20) having at least one marking comprises: a mechanical structure adapted to cooperate with the blocking device; an image sensor (4) observing the ophthalmic lens (20); a control unit (10) connected to the image sensor (4) and configured to produce an image having a point of reference with a determined position with respect to the mechanical structure and at least part of the ophthalmic lens (20) including said marking; and a user interface (12) adapted to display a blocking device positional compensation proposal for an automatic positional compensation or for a manual positional compensation based on the comparison to a predetermined threshold of a distance between the point of reference and the marking on the image. A corresponding method and a method for edging an ophthalmic lens are also proposed.

    APPARATUS FOR RECOMMENDING AN OPTICAL DEVICE

    公开(公告)号:US20230097543A1

    公开(公告)日:2023-03-30

    申请号:US17905041

    申请日:2021-03-01

    Abstract: An apparatus for recommending an optical device adapted to a wearer having a current optical device, the apparatus including processing circuitry that receives and stores measured data relating to features measured on the wearer using at least one measuring instrument, anamnesis data relating to the anamnesis of the wearer, and current optical device data relating to the current optical device used by the wearer, that processes at least two of the measured, anamnesis, and current optical device data based on predetermined processing rules, and that recommends an optical device for the wearer based on the data.

    RETINOSCOPIC AID DEVICE
    4.
    发明申请

    公开(公告)号:US20250072750A1

    公开(公告)日:2025-03-06

    申请号:US18826993

    申请日:2024-09-06

    Abstract: A retinoscopic aid device for use with a portable streak retinoscope and with an automated phoropter for testing an individual's eye. The retinoscopic aid device includes a base plate configured to be detachably fastened to the automated phoropter, an optical display unit configured to display an orientable straight line mark, the optical display unit being supported by the base plate, and a control unit of the optical display unit which is configured to orient the straight line mark of the optical display unit according to a control command of a user allowing the user to orient the straight line mark according the streak orientation of the portable streak retinoscope when looking through the portable retinoscope.

    METHOD FOR DETERMINING THE POSITION OF THE EYE ROTATION CENTER OF THE EYE OF A SUBJECT, AND ASSOCIATED DEVICE

    公开(公告)号:US20200218087A1

    公开(公告)日:2020-07-09

    申请号:US16624461

    申请日:2018-06-29

    Abstract: Disclosed is a method for determining the position of the eye rotation center of a subject's eye including: providing a geometric model of an eye, the eye being modeled with one sphere for the sclera and one ellipsoid for the cornea of the eye, the position of the eye rotation center being the distance between a center of the sclera and an apex of the cornea and being determined based on a set of personal parameters including a first geometric dimension of the eye, each personal parameter distinct from the position of the eye rotation center; determining a value of each personal parameter; and determining a first approximate value of eye position rotation center based on the geometric model using the personal parameters. Also disclosed is a method for calculating a personalized ophthalmic lens for the eye using such center, as well as a device implementing this method.

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