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:
Nov. 12, 2019
Filed:
Mar. 07, 2014
Essilor International, Charenton-le-Pont, FR;
XinPing Yu, Wenzhou, CN;
Jinhua Bao, Wenzhou, CN;
Björn Drobe, Wenzhou, CN;
Wenhui Lv, Wenzhou, CN;
Hao Chen, Wenzhou, CN;
Jinling Xu, Wenzhou, CN;
Ge Wu, Wenzhou, CN;
Essilor International, Charenton-le-Pont, FR;
Abstract
A method for determining personalized near addition value for non-presbyopes, including measuring fusional amplitudes and phoria with at least one addition value, on both eyes of a person at a working distance; finding a mathematical function that predicts the change of a pair of fusional amplitudes and phoria as a function of addition value based on the addition value and the measured fusional amplitudes and phoria; and determining the near addition value according to a suitable relationship between the pair of fusional amplitudes and phoria on the mathematical function.