Device null in order to do the polymerization rotary pouring into a mold modulo and this manner

摘要

PURPOSE: To make the periphery of lenses which face the eyes best by a method in which a monomer mixture is charged into a mold with its convex surface turned upward, immersed in an auxiliary liquid, packed completely, and sealed, and a tube is rotated at a high speed, the rotation speed is reduced, and the monomer mixture is polymerized. CONSTITUTION: For example, a cap 19 which has a puncture closure 20 and is fitted in the middle of a lower part and filled with the concentrated solution of sodium hydrogen phosphate (Na2 HPO4 ) is mounted on a polystyrene mold with its convex part 18 turned downward. Next, the mold 13 is rotated at a high speed, acetylethylene glycol methacrylate containing 0.01% of methyl benzoate ether and 0.3 % ethylene dimethacrylate(EDMA) is charged by a needle passing through a puncture closure, the rotation speed is reduced according to the desired optical force of a lens, and the mold is illuminated with a high pressure mercury lamp to be polymerized with a monomer mixture. The mold having the polymerized lens is washed with 1N sulfuric acid, an acetyl group is hydrated, and the lens is swelled.