Patent ID: 7037449

Claim:
A method of preparing an eyeglass lens, comprising: placing a lens forming composition in a mold cavity of a mold assembly; placing the mold assembly in a lens curing unit the lens curing unit comprising a first lens curing unit comprising an activating light source, wherein the first lens curing unit is configured to produce activating light directed toward a mold assembly during use; a second lens curing unit comprising an activating light source and a heating system, wherein the activating light source is configured to direct activating light toward the mold assembly during use, wherein the heating system is configured to heat the interior of the second lens curing unit during use; and a conveyor system, wherein the conveyor system is configured to convey a mold assembly through the first lens curing unit into and through the second lens curing unit during use; applying light and heat to the mold assembly with the lens curing unit to at least partially cure the lens forming composition; monitoring usage of the lens curing unit with a controller; wherein the controller automatically turns off one or more components of the lens curing unit when the monitored usage of the lens curing unit indicates that the lens curing unit has not been used for a predetermined amount of time.