Patent ID: 6174465
Filing Date: 2001-01-16
Classification: B29C,B29D,B29K,Y10S

Abstract:
A method for making an eyeglass lens, comprising:placing a liquid, polymerizable lens-forming composition in a mold cavity defined by at least a first mold member and a second mold member, the lens forming composition comprising a photoinitiator;applying first ultraviolet light to at least one of the mold members for a selected first period of time such that a temperature of the lens forming composition begins to increase;removing the first ultraviolet light from at least one of the mold members, thereby inhibiting the temperature of the composition from increasing to a selected first temperature;repeatedly and alternately performing the following steps to complete the formation of a lens: (a) applying second ultraviolet light to at least one of the mold members for a selected second period of time and (b) removing the second ultraviolet light from at least one of the mold members for a selected third period of time.