SPHERICAL SURFACE GRINDING/POLISHING METHOD, SPHERICAL SURFACE GRINDING/POLISHING DEVICE AND METHOD FOR DETECTING SPHERICAL CENTER OF SPHERICAL SURFACE GRINDING/ POLISHING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a spherical surface grinding/polishing device which can perform high precision grinding/polishing machining with a concave or convex spherical surface of an object to be polished such as a lens and a polishing surface of an abrasive plate tracing the same locus. ;SOLUTION: This device is provided with a abrasive plate 2 polishing the spherical surface of a lens 1, a rotating means holding and rotating the plate 2, a holding means holding the rotating means rotatable, an oscillating means oscillating the abrasive plate 2, a pressing means holding the lens 1 rotatable and pressing it toward the spherical center of the abrasive plate 2, a moving means 2 moving the holding means forward and backward toward the spherical center of the abrasive plate 2, a detecting means detecting the deviation amount between the spherical center of the abrasive plate 2 and the oscillating center, and a controlling means correcting the forward or backward position toward the spherical center of the abrasive plate 2 set by the moving means according to the deviation amount detected.;COPYRIGHT: (C)2003,JPO