Method and system for producing a gradient polar film

    公开(公告)号:US12115744B2

    公开(公告)日:2024-10-15

    申请号:US17416899

    申请日:2019-12-09

    IPC分类号: B29D11/00 G02C7/12

    摘要: A system and method for manufacturing an ophthalmic lens is provided. The method involves preparing a cross-polarization cancelling optical film for an optical article comprising providing a film having at least a first section comprising a first edge, a second section comprising a second edge, and a predetermined color intensity; providing an apparatus, wherein the apparatus comprises at least a first roller and a second roller, wherein the first roller and the second roller are configured to stretch at least a portion of the film; and continuously and asymmetrically stretching at least a portion of the film using the apparatus, while substantially maintaining the color intensity of the film.

    METHOD FOR ISSUING AN INPUT TO A COMPUTER FROM A HEAD-MOUNTED DEVICE

    公开(公告)号:US20240329750A1

    公开(公告)日:2024-10-03

    申请号:US18622070

    申请日:2024-03-29

    摘要: The invention relates to a method for issuing an input to a computer from a head-mounted device, the head-mounted device comprising a processing unit and a memory as well as at least one position and/or movement sensor, the head-mounted device being in communication with the computer, the method being implemented while the head-mounted device is worn on a wearer's head.
    The method comprises steps of:



    acquisition of position and/or movement data representative of the movement of the wearer's head by the position and/or movement sensor,
    detection of a specific movement pattern based on said position and/or movement data, the specific movement pattern being taken from a library of movement patterns,
    determination of a specific input associated with the specific movement pattern in the library, and
    issuance of the specific input to the computer.

    OPTICAL LENS HAVING AN ANTIREFLECTION COATING REFLECTING BLUE LIGHT

    公开(公告)号:US20240230956A1

    公开(公告)日:2024-07-11

    申请号:US18558313

    申请日:2022-06-09

    IPC分类号: G02B1/115 G02C7/10

    CPC分类号: G02B1/115 G02C7/104

    摘要: Disclosed is an optical lens including a substrate having a front main face and a rear main face, at least one of the main faces including a multilayer antireflection coating having a stack of at least one high refractive index layer and at least one low refractive index layer, wherein the multilayer antireflection coating(s) present on the main face(s) provide(s) the optical lens with an average blue light reflection factor RmB3 within the wavelength range 440-460 nm, which is higher than or equal to 15%, for an angle of incidence ranging from 0° to 15°, and the spectral reflectivity curve of the multilayer antireflection coating has a reflection peak centered at a wavelength in the 340-420 nm range, and the reflection peak has a maximum reflectivity lower than or equal to 50% and exhibits a full width at half maximum higher than 70 nm.

    A METHOD AND SYSTEM FOR AUTOMATICALLY EVALUATING THE RELEVANCE OF THE DESIGN OF AN EYEGLASSES FRAME

    公开(公告)号:US20240210740A1

    公开(公告)日:2024-06-27

    申请号:US18557259

    申请日:2022-05-31

    IPC分类号: G02C13/00

    CPC分类号: G02C13/003

    摘要: This computer-implemented method for automatically evaluating a relevance of a design of an eyeglasses frame includes: obtaining a predetermined frame having a predetermined design; obtaining information relating to a current representation of the predetermined frame; and evaluating, by at least one processor, a relevance of the predetermined design, from the current representation, according to at least one predetermined relevance criterion and providing, by the at least one processor, a feedback including a result of the evaluating.

    OPTOMETRIC TESTING DEVICE AND PROCESS
    10.
    发明公开

    公开(公告)号:US20240206725A1

    公开(公告)日:2024-06-27

    申请号:US18555652

    申请日:2022-04-26

    IPC分类号: A61B3/08 A61B3/00 A61B3/028

    CPC分类号: A61B3/08 A61B3/005 A61B3/0285

    摘要: An optometric testing device comprising a first shutter and a second shutter placed in front of two eyes of a patient and configured to present an activated state in which a shutter blocks the propagation of light and a deactivated state in which the shutter allows the propagation of light, a communication unit configured to communicate with a display system in order to send and/or receive a synchronization signal, and a control unit configured to command each shutter as a function of the synchronization signal so that the first shutter and the second shutter change state with a first frequency and a second frequency, wherein the control unit is configured to command each shutter so that the first frequency is different from the second frequency and/or so that a duty cycle of activation of the first shutter is different from a duty cycle of activation of the second shutter.