An apparatus for preparing a plastic eyeglass lens includes a coating unit and
a lens curing unit. The apparatus is preferably configured to allow the operation
of both the coating unit and the lens curing unit. The apparatus may also include
a post-cure unit and a controller. The controller is configured to control the
operation of the coating unit, the lens curing unit and the post-cure unit. The
lens forming unit may include an LCD filter disposed between activating light sources
and a mold assembly. The mold assembly preferably includes two mold members held
together by a gasket. The gasket preferably includes four protrusions spaced at
90 degree intervals about the gasket. A lens forming composition may include a
first photochromic compound, a second photochromic compound and a light effector.
The light effector may alter the color of a lens when exposed to photochromic activating
light, when compared to a lens formed from a lens forming composition which does
not include a light effector.
