Abstract: A method and apparatus for forming lenses from a polymerizable monomeric liquid. In accordance with the method of the invention, the activated monomer is encapsulated within lens molds of unique design and is exposed to a precisely controlled atmosphere within the apparatus of the invention. More particularly, during the entire curing cycle of the monomer the molds are uniformly exposed to collimated streams of air maintained at closely controlled temperatures. The streams of air serve to precisely control the temperature of the monomer within the molds and to continuously remove the heat of exotherm from each individual mold.

Abstract: A press having press members movable between open and closed positions and wherein when the press is in its closed condition there is an internal force urging separation of the press members. Locking means are provided for retaining the press members in their closed positions, the locking means being in the form of short stroke, large force fluid motors which serve to prevent accidental separation of the press members during the operation of the press.