Methods and apparatus for eyeglass lens curing using ultraviolet light and improved cooling

摘要

Method for making a plastic lens is provided. More particularly, a method for applying alternating periods of ultraviolet light to a lens forming composition is described. The lens forming composition is cured while controlling the rate of heat generation and/or dissipation via manipulation of the duration of the ultraviolet light or the cooling in the curing chamber. The ultraviolet light is preferably directed toward the lens forming composition which is disposed in a mold cavity formed by two mold members. The ultraviolet light may be directed in pulses or continuously.