Method of determining at least one behavioural parameter

    公开(公告)号:US10036902B2

    公开(公告)日:2018-07-31

    申请号:US15312473

    申请日:2015-05-19

    CPC classification number: G02C13/005 A61B5/1077 A61B5/1079 A61B5/16 A61B5/163

    Abstract: A method of determining at least one behavioral parameter of a wearer for designing an ophthalmic eyeglass lens includes: a) acquiring a first data set from a first representation of the head of the wearer in three dimensions; b) determining the relative position in space of at least three particular points of the head based on the data set; c) acquiring a second data set from a second representation of the head in a natural posture, including at least one image of each of the three particular points; d) identifying the image of each of the particular points from step b) on the representation of step c); e) deducing information relating to the position and/or to the orientation of the head of the wearer during the determination of the second representation from this identification; and f) determining the behavioral parameter of the wearer based on the information from step e).

    Optical instrument for locating at least one characteristic point of an ophthalmic lens

    公开(公告)号:US09885632B2

    公开(公告)日:2018-02-06

    申请号:US15121296

    申请日:2015-02-26

    Inventor: Guilhem Escalier

    CPC classification number: G01M11/0264 G01M11/0207 G01M11/0214 G01M11/0235

    Abstract: An instrument has a light-emitting and light-receiving assembly including an image capture unit and image processing unit; a backscatterer and an opening provided therein; a support for receiving an ophthalmic lens between the assembly and backscatterer, the assembly, support and backscatterer placed so that an incident light beam traverses the lens, strikes the backscatterer, returns and re-traverses the lens to arrive at the capture unit; the light-receiving assembly, the support, backscatterer and opening configured so that the assembly receives light from the beam; and the opening and a drive device for cyclically driving and making the backscatterer perform an identical movement in each cycle, configured so that a fixed zone opposite the backscatterer includes at least one part of which, over the course of a cycle, every point is at times perpendicular to the opening and at times perpendicular to a solid portion part of the backscatterer.

    Optical instrument for identifying and locating micro-etching on an ophthalmic lens

    公开(公告)号:US09885631B2

    公开(公告)日:2018-02-06

    申请号:US15120817

    申请日:2015-02-26

    Inventor: Guilhem Escalier

    CPC classification number: G01M11/0257 G01M11/0264 G01M11/0278

    Abstract: An optical instrument includes: a collimation element (30) having a focal distance; a point light source (25-27) with a wavelength of between 700 and 1000 nm and a diameter less than or equal to a fiftieth of the focal distance, placed at a first focus of the collimation element, so that the light becomes a beam (20) of collimated light; a backscatterer (12); a support for receiving an ophthalmic lens (14), with the collimation element, support and backscatterer being placed so that the beam of collimated light encounters the lens location (15) where micro-etching is present; an image analyzing element (32) and an image capture element (31) linked to the analyzing element and including an objective lens (35) placed at a second focus of the collimation element, which objective lens is developed to provide the analyzing element with images of the backscatterer in order to identify and locate the micro-etching.

    Device and method for measuring objective ocular refraction and at least one geometric-morphological parameter of an individual
    18.
    发明授权
    Device and method for measuring objective ocular refraction and at least one geometric-morphological parameter of an individual 有权
    用于测量目标眼睛折射和个体至少一个几何形态参数的装置和方法

    公开(公告)号:US09545202B2

    公开(公告)日:2017-01-17

    申请号:US14411522

    申请日:2013-07-04

    Abstract: Disclosed is a device for measuring ocular refraction and a geometric-morphological parameter of an individual, including: a gaze-stimulating target placed so as to stimulate the gaze of the individual in a posture associated with a proximity value and a sight axis; an illuminating system able to generate at least one illuminating beam in the direction of the eyes of the individual; an image-capturing system; and a computer able to receive at least one first image captured by the image-capturing system. According to the invention, the image-capturing system is able to acquire an image of part of the face surrounding the eyes of the individual, and the computer is able to extract, from the acquired image, a first measurement of a glazing parameter and a first measurement of objective ocular refraction by refraction of the illuminating beam on the eyes of the individual in the given posture.

    Abstract translation: 公开了一种用于测量个体的眼睛折射和几何形态参数的装置,包括:注视刺激对象,其被设置为以与接近值和视轴相关联的姿势刺激个体的凝视; 照明系统,其能够在个体的眼睛的方向上产生至少一个照明光束; 图像捕获系统; 以及能够接收由图像捕获系统捕获的至少一个第一图像的计算机。 根据本发明,图像拍摄系统能够获取围绕个人眼睛的部分脸部的图像,并且计算机能够从获取的图像中提取玻璃窗参数的第一测量和 首先通过在给定姿势下将个体的眼睛上的照明光束折射来进行客观的眼屈光度测量。

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