Abstract: A unitary composite lens includes a first lens portion, a second lens portion spaced from the first lens portion, and a connecting portion connecting the first lens portion and the second lens portion. The second lens portion is optically aligned with the first lens portion. The first lens portion, the second lens portion and the connecting portion are comprised of a same material.

Abstract: An exemplary mold unit includes a first mold module and a second mold module adjacent to the first mold module. Each of the first mold module and the second mold module includes a fixed mold and a movable mold capable of moving toward and away from the fixed mold. The fixed and movable molds are configured to form a plurality of shaping chambers therebetween when the fixed and movable molds are in a closed position. The fixed mold defines a main runner having an inner end capable of communicating with the shaping chambers for supplying molten material into the shaping chambers.

Abstract: A mold apparatus includes a first mold core, a second mold core, a sprue, a first insert, and a second insert. The first and second mold cores cooperatively define a first mold chamber, a second mold chamber, a first runner connected to the first mold chamber, and a second runner connected to second mold chamber. The sprue bushing has a sprue, a first guiding groove, and a second guiding groove. The first and second guiding grooves are configured for guiding molten material from the sprue to the respective first and second runners. The first and second guiding grooves each have a recess. The first insert has a protruded end portion. The second insert has a recessed end portion. The first and second inserts are inserted into the first or second recess, thereby blocking the corresponding first or second runner or compensating the corresponding first or second recess.

Abstract: A mold apparatus includes a first mold core, a second mold core, a sprue, a first insert, and a second insert. The first and second mold cores cooperatively define a first mold chamber, a second mold chamber, a first runner connected to the first mold chamber, and a second runner connected to second mold chamber. The sprue bushing has a sprue, a first guiding groove, and a second guiding groove. The first and second guiding grooves are configured for guiding molten material from the sprue to the respective first and second runners. The first and second guiding grooves each have a recess. The first insert has a protruded end portion. The second insert has a recessed end portion. The first and second inserts are inserted into the first or second recess, thereby blocking the corresponding first or second runner or compensating the corresponding first or second recess.