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:
Apr. 15, 2003
Filed:
Apr. 27, 2001
Yoshiyuki Hatano, Tokyo, JP;
Kabushiki Kaisha TOPCON, Tokyo, JP;
Abstract
There are provided a lens periphery processing method for an eyeglasses lens, a lens periphery processing machine and lens for eyeglass, in which a V shaped portion that fits strongly in a lens frame of eyeglasses frame, can be processed in such a manner that V shaped portion contact with inside of the V shaped groove of the lens frame so that a contact element does not interfere with a holding means for fixing and holding a lens frame, and even if the V shaped groove shape is measured in a state in which the lens frame is tilted, a difference in size due to holding position between the lens frame and a processed eyeglasses lens does not arise. Measuring the lens frame shape of eyeglasses frame by contacting the contact element having a width narrower than the width of the V shaped groove , on the both sides of the V shaped groove formed in the inner face of the lens frame for eyeglasses lens, and forming the V shaped portion of said eyeglasses lens in a shape that the eyeglasses lens is put in the V shaped groove with contacting at the points where the contact element contacted on said both sides of the groove, as substantially the deepest contacting points in the groove.