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:
Jul. 09, 2013
Filed:
Jul. 03, 2003
Takashi Igarashi, Tokyo, JP;
Shuichi Sato, Tokyo, JP;
Yoshihiro Kikuchi, Tokyo, JP;
Michio Arai, Tokyo, JP;
Satoshi Annaka, Tokyo, JP;
Takashi Igarashi, Tokyo, JP;
Shuichi Sato, Tokyo, JP;
Yoshihiro Kikuchi, Tokyo, JP;
Michio Arai, Tokyo, JP;
Satoshi Annaka, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A lens machining apparatus is provided that can execute everything required in machining eyeglass lenses, from measurement to various kinds of machining, and still ensures high-precision machining. The apparatus includes a lens holding unit 12 which holds a lens 1 and causes the same to turn, a cutter 131 which cuts (edges) the circumferential surface of the lens in a prescribed cross-sectional shape, an end mill 141 which machines a groove in the circumferential surface of the lens whose circumferential surface has been cut (edged) and chamfers edges at the lens circumferential surface, and a lens measurement unit 15 which measures the shape and the position of the lens held by the lens holding unit.