Patent ID: 6908367

Claim:
An apparatus for processing a lens, comprising: (a) a finishing unit constructed to chamfer and groove a peripheral portion of a spectacle lens; (b) a holding shaft arranged to support the lens; (c) a lens-holding unit connected to rotate the holding shaft and displace the lens towards the finishing unit based on data describing a shape of a lens frame and a rotation angle of the holding shaft; and (d) a positioning device connected to displace the lens in an axial direction of the holding shaft; wherein the finishing unit further comprises: i. a rotating tool for chamfering and a rotating tool for grooving, both tools being disposed at positions separated by a prescribed distance along the holding shaft; and ii. a drive connected to drive the rotating tool for chamfering and the rotating tool for grooving, wherein one of the rotating tool for chamfering and the rotating tool for grooving is selected for finish processing in accordance with a displacement in the axial direction of the positioning device to a prescribed position for processing, or to a prescribed processing depth set in accordance with displacement in the axial direction, wherein the finishing unit is displaceable between a first position for processing where the rotating tool for chamfering and the rotating tool for grooving face towards the holding shaft and a prescribed waiting position that is separated from the first position where the rotating tool for chamfering and the rotating tool for grooving face towards the holding shaft.