Eyeglass lens processing apparatus and eyeglass lens processing program

A non-transitory computer readable medium storing an eyeglass lens processing program to be executed by a processor of an eyeglass lens processing apparatus for processing a periphery of the lens, the eyeglass lens processing apparatus including a processing tool processing a lens and a movement portion configured to change a relative position between the lens and the processing tool, the eyeglass lens processing program, when executed by the processor, causing the eyeglass lens processing apparatus to execute:

• acquiring positional data related to a corner portion of an edge of the lens before the lens is finished and after the lens is roughed;
• acquiring corner portion processing control data for removing a chip adhering to the lens through roughing, based on the acquired positional data;
• and
• controlling the movement portion based on the corner portion processing control data so as to remove the chip adhering to the lens;
• wherein
• finishing control data for finishing the lens is acquired based on lens shape data acquired by measuring the shape of the lens by using a lens shape measuring portion after the chips adhering to the lens are removed by the processing tool, and
• the movement portion is controlled based on the finishing control data to finish of the lens.

An eyeglass lens processing apparatus comprising:

• a processing tool configured to process a periphery of a lens;
• a movement portion configured to change a relative position between the lens and the processing tool
• a processor;
• memory storing computer readable instructions, which executed by the processor, causing the eyeglass lens processing apparatus to execute:
• acquiring positional data related to a corner portion of an edge of the lens before the lens is finished and after the lens is roughed;
• acquiring corner portion processing control data for removing a chip adhering to the lens through roughing, based on the acquired positional data;
• and
• controlling the a movement portion based on the corner portion processing control data so as to remove the chip adhering to the lens;
• wherein:
• the corner portion processing control data is acquired by bringing the processing tool and the corner portion of the edge of the lens after the lens is roughed into contact with each other based on the positional data acquired by the positional data acquiring portion,
• the movement portion is controlled based on the corner portion processing control data to process the corner portion of the edge of the lens to remove the chips adhering to the lens;
• after performing roughing of the lens by controlling the movement portion based on roughing control data, the movement portion is controlled based on the corner portion processing control data to process the corner portion of the edge of the lens after the lens is roughed to remove the chip adhering to the lens;
• the roughing includes a first stage in which the processing tool cuts the lens without rotating the lens in a plurality of lens rotation angle directions by controlling the movement portion based on the roughing control data, and a second stage in which the processing tool processes the lens while the lens is rotated, and
• the second stage is performed after the first stage.