Patent ID: 8684795
Filing Date: 2014-04-01
Classification: B24B

Abstract:
1. An eyeglass lens processing apparatus comprising: a lens rotating unit which includes a lens chuck shaft for holding an eyeglass lens and a motor for rotating the lens chuck shaft; and a tool rotating unit which includes a beveling tool for forming a bevel on a periphery of the lens, a spindle to which the beveling tool is attached and which is disposed parallel to the lens chuck shaft or disposed to be inclined with respect to the lens chuck shaft at a predetermined angle, and a motor for rotating the spindle, wherein the beveling tool includes a first processing part for forming a rear bevel at a rear side of the lens and a second processing part for forming a bevel foot coupled to the rear bevel, and wherein in the second processing part, a distance from a line parallel to the lens chuck shaft and passing through a point of a border with the first processing part gradually increases from the border point as the starting point to an endpoint of the second processing surface and an increase rate of the distance gradually increases at least in two steps from the border point to the endpoint.