Mold assembly for making an ocular lens blank

摘要

An assembly for molding an ocular lens blank (80) which may be lathed into a contact lens or intraocular lens includes a sleeve, and a first and second (16) mold segment placed within the sleeve. After a lens blank is molded in a space between the two segments and the sleeve, the two segments are removed from the sleeve and the second mold segment then functions as a holder for the lens blank during a lathing operation. The second mold segment has an outer cylindrical surface (70) for gripping by a collet, and also has an internal frustoconical recess for a mounting pin, and thus can be used with a variety of lathes known to the optical industry.