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1. (WO2017021626) DEVICE AND METHOD FOR ACQUIRING A ZONE OF INTEREST OF A FRAME AND METHOD FOR DETERMINING AT LEAST ONE EDGING PARAMETER OF AN OPHTHALMIC LENS

Pub. No.:    WO/2017/021626    International Application No.:    PCT/FR2016/051967
Publication Date: Fri Feb 10 00:59:59 CET 2017 International Filing Date: Fri Jul 29 01:59:59 CEST 2016
IPC: G01B 5/20
B24B 9/14
G02C 13/00
Applicants: ESSILOR INTERNATIONAL (COMPAGNIE GÉNÉRALE D'OPTIQUE)
Inventors: ALLOUIS, Thierry
HOLVOET VERMAUT, Benoit
ANATOLE, Vincent
MIATELLO, Michael
Title: DEVICE AND METHOD FOR ACQUIRING A ZONE OF INTEREST OF A FRAME AND METHOD FOR DETERMINING AT LEAST ONE EDGING PARAMETER OF AN OPHTHALMIC LENS
Abstract:
The invention relates to a device (100) for acquiring a zone of interest (ZR) of a spectacle frame (10), corresponding to a region of possible collision with an ophthalmic lens (20) mounted in this spectacle frame (10), comprising: a spectacle frame holder (1, 10) suitable for holding the spectacle frame fast in a predetermined frame of reference (O, X, Y, Z) of this device having three orthogonal axes (X, Y, Z); means (120) for determining the position, along a first axis (Z) in said predetermined frame of reference of a point of interest (PR) of said zone of interest of the spectacle frame, which point is intended to be located plumb with the ophthalmic lens mounted in this spectacle frame; locating means (150) for locating an angular position of said zone of interest of the spectacle frame in a base plane defined by the two other axes of said predetermined frame of reference. The invention also relates to a method for acquiring the shape of a zone of interest of a spectacle frame and a method for determining at least one edging parameter of a lens.