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. 08, 2018
Filed:
Nov. 01, 2013
Hoya Corporation, Tokyo, JP;
Takahiro Suzue, Tokyo, JP;
Tsukasa Sato, Tokyo, JP;
HOYA CORPORATION, Tokyo, JP;
Abstract
A lens edging system includes: an edger configured to perform edging to a spectacle lens in accordance with three-dimensional edging locus data obtained from edging shape data by calculation; a three-dimensional circumferential length measurement device configured to measure a circumferential length of the spectacle lens edged by the edger; and an edging size management device configured to correct a calculation parameter used for calculating the edging locus data, based on a difference between a measured circumferential length obtained by a three-dimensional circumferential length measurement device, and a theoretical circumferential length obtained by calculation.