Optical lens generating machine having an air rotatable spherical bearing workpiece holder

摘要

An optical lens surfacing machine for separately operating upon each refractive side of an ophthalmic lens carried by a workpiece holder. An operation tool for working upon the lens surface is constructed for total lens surface engagement. The workpiece holder is supported for relatively free pivotable movement, but is power rotated for a period of time upon activation of the machine to decrease the possibility of damaging the refractive side of the lens being operated upon. This holder provides a single machine to be used for lapping and polishing a lens in a minimum number of steps.