| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable processing of effectively restraining "axial deviation" of a thermoplastic lens. <P>SOLUTION: This eyeglass lens processing apparatus includes: a lens rotating unit for rotating a chuck shaft for holding an eyeglass lens; a processing tool rotating unit for rotating a processing tool rotating shaft attached with a rough processing tool for roughly processing the lens; an axis-to-axis distance changing unit for varying a distance between the chuck shaft and the processing tool rotating shaft; and a selecting unit for selecting a construction material of the lens. The eyeglass lens processing apparatus roughly processes the lens based on a rough processing locus. The eyeglass lens processing apparatus includes a control unit which processes the lens by the rough processing tool based on the rough processing locus by controlling the lens rotating unit and the axis-to-axis distance changing unit, and which performs processing of two stages of processing a remaining processing area based on the rough processing locus while rotating the lens, after performing the processing of the first stage of cutting in, with the rough processing tool, to the rough processing locus without rotating the lens in a plurality of lens rotation angle directions, when selecting the lens of a thermoplastic raw material. <P>COPYRIGHT: (C)2012,JPO&INPIT |
