The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2019
Filed:
Oct. 23, 2014
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Ahmed Haddadi, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Abstract
The invention relates to a device for determining a writing or reading mode of a person wearing spectacles including a frame and two lenses, the device comprising, according to the invention, means for measuring the distance between an element of the frame or the head and a working plane, means for measuring an angle of inclination (α) of a median plane of the two lenses relative to the vertical in a vertical median plane (P) of the head perpendicular to the median plane, and control means suitable for comparing the measured angle of inclination (α) with a set angle of inclination and for determining a reading mode or a writing mode of the person according to the comparison, the reading mode being associated with a predetermined set reading distance, and the writing mode being associated with a predetermined set writing distance.