Bausch-lomb Incorporated

Other

Jeffrey M Vandewinckel

William J Appleton

Kenneth L Opdyke

George L Wickes

Allen L Ormiston

Michael Henry Dobner

Kevin Jacob DeRyke

Ian Andrew Powell

A method and apparatus for practicing the method of making toric contact lenses having a toric axis and ballast axis located on the anterior and posterior surfaces of a lens. Detectable features are formed on the anterior and posterior mold sections corresponding to the location of the toric axis and ballast axis, respectively. An axis alignment tool having detecting means thereon is used to set the mold sections to a known angular position. The desired axial offset is input into a computer which establishes the axial offset between the mold sections.

Toric axis alignment machine and method

An improved method for forming plastic molds for casting articles having an optical surface such as contact lenses employs a plastic tool having an optically smooth surface.

Method of making plastic molds

A selectively, rotatably adjustable riser pin for aligning a predetermined characteristic on an asymmetrical mold surface with the gate of an injection molding machine for enhanced flow dynamics of the mold material across the mold surface. The riser pin is divided into two co-linear portions which are biased towards one another such that application of a predetermined torque will allow the front riser pin portion, which carries the mold tool, to be rotated independently of the back riser pin portion.

Apparatus for rotationally aligning a feature of an optical tool with a

Apparatus for making plastic molds

Method of making plastic molds for molding contact lenses

Growing community of inventors

Rochester, NY, United States of America

Jeffrey M Vandewinckel