LENS ELEMENT
    1.
    发明申请

    公开(公告)号:US20210080750A1

    公开(公告)日:2021-03-18

    申请号:US17050322

    申请日:2019-04-01

    Abstract: A lens element intended to be worn in front of an eye of a wearer comprising: —a prescription portion configured to provide to the wearer in standard wearing conditions a first optical function based on the prescription of the wearer for correcting an abnormal refraction of said eye of the wearer, and —a plurality of contiguous optical elements, wherein each optical element has a simultaneously bifocal optical function that provides simultaneously: —a second optical function in standard wearing conditions and —a third optical function of not focusing an image on the retina of the eye in said standard wearing conditions so as to slow down the progression of the abnormal refraction of the eye.

    Method For Providing To An Eye Of A Wearer A Customizable Ophthalmic Lens And Associated Active System Of Vision

    公开(公告)号:US20180017812A1

    公开(公告)日:2018-01-18

    申请号:US15695644

    申请日:2017-09-05

    Inventor: Marius PELOUX

    CPC classification number: G02C7/083

    Abstract: Providing to an eye a customizable ophthalmic lens comprising a transparent set of electroactive cells (24) juxtaposed to a lens surface for providing an optical phase-shift distribution function. The method includes providing (402) a reference phase-shift distribution function adapted to provide a given dioptric function DF(α, β); determining (404) the actual gaze direction (αa, βa); choosing (406) a reference gaze direction (αR, βR); calculating (408) an actual point Pa at the intersection between the actual gaze direction and the transparent set of electroactive cells, and a reference point PR at the intersection between the reference gaze direction and the transparent set of electroactive cells; calculating (410) a modified phase-shift distribution function by shifting the reference phase-shift distribution function according to a vector {right arrow over (PRPa)}; and activating (412) the electroactive cells according to the modified phase-shift distribution function.

    OPTICAL DEVICE ADAPTED TO BE WORN BY A WEARER

    公开(公告)号:US20240111179A1

    公开(公告)日:2024-04-04

    申请号:US18537550

    申请日:2023-12-12

    CPC classification number: G02C7/083 A61B3/113 G02B27/0093 G02C11/10

    Abstract: An optical device including an active programmable lens having an adjustable optical power depending on a prescription of a wearer and being relative to a vision distance and/or direction of an eye of the wearer, a vision sensor adapted to measure vision data relating to the vision distance and/or direction of the eye, and an optical power controller that includes a memory storing computer executable instructions and adapted to store measured vision data and two predetermined optical power states corresponding to an optical power relative to a range of vision distance and/or direction of the eye, and a processor for executing the stored computer executable instructions, which include instructions for adjusting the adjustable optical power between the predetermined optical power states with a resolution smaller than or equal to 0.25D when the vision data passes from one range of vision distance and/or direction to another.

    METHOD FOR DISPLAYING A SHARP IMAGE ON A RETINA OF AN EYE OF THE PERSON

    公开(公告)号:US20230057657A1

    公开(公告)日:2023-02-23

    申请号:US17760178

    申请日:2021-02-08

    Abstract: The invention relates to a method for displaying a sharp image on a retina of an eye of the person, the person having a prescription for the eye of the person, the method comprising: providing at least one optical parameter relative to the prescription for the eye of the person; providing a plurality of initial sub-images, each initial sub-image corresponding to at least a part of the image to be displayed; providing a plurality of light beams configured to be focused substantially in the plane of a pupil of the eye at a plurality of corresponding different positions, each light beam being configured to carry an associated sub-image; for each sub-image, adapting the sub-image based on the at least one provided optical parameter and on the corresponding focused position of the light beam configured to carry the sub-image to form an adapted sub-image; and displaying each adapted sub-image carried by the associated light beam on the retina of the person.

    DYNAMIC CONTROL OF TRANSMISSION VALUE

    公开(公告)号:US20220397777A1

    公开(公告)日:2022-12-15

    申请号:US17770468

    申请日:2021-10-14

    Abstract: The disclosure relates to methods, controlling units, eyeglasses, computer programs and computer-readable storage media for controlling an optical transmission of a variable transmission ophthalmic lens. The method includes receiving from a light sensor a measured illuminance of the environment of a wearer, computing a change of illuminance measured during a predetermined time interval, comparing the computed change of illuminance with a first threshold, when the computed change of illuminance is greater than the first threshold, implementing first command configured for varying the transmission of the variable transmission ophthalmic lens from initial transmission value corresponding to a current transmission value to a first target transmission value, according to a first variation profile comprising a first phase during which the transmission overshoots the first target transmission value, and a second phase during which the transmission returns to the first target transmission value.

    METHOD AND SYSTEM FOR DETERMINING A PRESCRIPTION FOR AN EYE OF A PERSON

    公开(公告)号:US20220361745A1

    公开(公告)日:2022-11-17

    申请号:US17771376

    申请日:2020-10-22

    Abstract: A system for determining a prescription for an eye of a person, the system being configured to communicate with a mobile device including at least one first light source adapted to illuminate the eye with first light having a first optical wavelength, at least one second light source adapted to illuminate the eye with second light having a second optical wavelength different from the first wavelength, and a processor that measures the photorefraction of the eye at the first wavelength based on at least one picture of the eye recorded when illuminating the eye with first light, measures the photorefraction of the eye at the second wavelength based on at least one picture of the eye recorded when illuminating the eye with second light, determines the prescription for the eye based on the measured photorefraction at the first wavelength and the measured photorefraction at the second wavelength.

    METHODS FOR DETERMINING AN OPHTHALMIC LENS AND ASSOCIATED OPTOMETRY DEVICE

    公开(公告)号:US20230190093A1

    公开(公告)日:2023-06-22

    申请号:US18062666

    申请日:2022-12-07

    CPC classification number: A61B3/09 A61B3/0025 A61B3/0091 A61B3/103

    Abstract: The invention relates to a method for determining an ophthalmic lens intended to be worn by an individual, said ophthalmic lens being adapted to provide to the individual a vision correction at at least one given vision gaze direction, said vision correction being based on wearer data including prescription data of the individual,
    wherein the method comprises the steps of:



    determining a parameter pertaining to the accommodative dynamics of an eye of the individual,
    determining said ophthalmic lens based on said wearer data and on the parameter pertaining to the accommodative dynamics of an eye of the individual.




    The invention also relates to a device for determining the parameter pertaining to the accommodative dynamics of an eye of an individual in the method according to the invention.

    OPTICAL DEVICE FOR A HEAD-MOUNTED DISPLAY, AND HEAD-MOUNTED DEVICE INCORPORATING IT FOR AUGMENTED REALITY

    公开(公告)号:US20210141225A1

    公开(公告)日:2021-05-13

    申请号:US16493219

    申请日:2018-03-09

    Abstract: The present invention relates to an optical device usable in a head-mounted display which comprises a light conducting element and at least one wafer, and to a head-mounted device which is configured to provide an informative display of augmented reality for a wearer of the head-mounted device and which comprises such an optical device. This optical device (1) comprises: a light conducting element (4) which has two first and second opposite main faces (4a and 4b) and which inputs and conducts by total internal reflections a light (6) received from the light source (5) and partially outputs it out of said element, at least one wafer (2, 3) which comprises an internal surface (2a, 3a) facing a said first main face of said light conducting element, and interposition means in contact with said first main face and said internal surface and defining a gap (11a, 11b) optically isolating said element. According to the invention, said interposition means comprise a peripheral sealing arrangement (10a, 10b) which extends along its peripheral length between and in sealing contact with a peripheral area (2aa, 3aa) of said internal surface and a facing zone (4aa, 4ba) of said first main face, at least one portion of said sealing arrangement exhibiting a locally reduced optical coupling with said first main face to preserve said internal reflections at said at least one portion toward the inside of said element.

    LENS ELEMENT
    9.
    发明申请

    公开(公告)号:US20210109378A1

    公开(公告)日:2021-04-15

    申请号:US17131855

    申请日:2020-12-23

    Abstract: A lens element intended to be worn in front of an eye of a person that includes a refraction area having a refractive power based on a prescription for the eye of the person, and a plurality of at least three non-contiguous optical elements, at least one optical element having a non-spherical optical function.

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