Patent ID: 6623339
Filing Date: 2003-09-23
Classification: B23C,B24B

Abstract:
A spectacle lens machining apparatus, comprising:a lens holding unit provided with a lens holding shaft which is a turnable shaft and which has a mechanism of holding a spectacle lens being machined at a center of the lens in such a manner that a direction of said shaft intersects a lens optical surface, and also provided with a turn driving mechanism which drives said lens holding shaft so as to turn according to a predetermined machining command information, thereby rotating said spectacle lens about the center of the spectacle lens to move a machined position of a circumferential edge of the spectacle lens; a lens machining mechanism provided with a revolving machining tool which edges the circumferential edge of said spectacle lens being machined that is held by said lens holding unit according to the predetermined machining command information, to machine the spectacle lens to a predetermined spectacle frame shape; a ball end mill which is provided to machine a groove in an end surface of the circumferential edge of the spectacle lens being machined that has been machined to the predetermined spectacle frame shape by said lens machining mechanism and to chamfer edges where the end surface of the circumferential edge of said spectacle lens being machined and the optical surface of this lens intersect, according to a predetermined machining command information; and a control information processing apparatus which has a function of sending necessary information including the predetermined machining command information to said lens holding unit, said lens machining mechanism, and said ball end mill, to control their operations.