Abstract: A temperature control system for a light emitting diode assembly and associated lamp comprises a circuit board for supporting one or more light emitting diodes and a housing supporting the circuit board. A coolant circulation path is routed through the housing. The coolant circulation path is connected to a source of a substantially constant temperature circulating coolant. The temperature of the coolant is maintained around the constant by an internal combustion engine and a radiator.

Abstract: A multi-colored lens assembly is produced in a multi-station injection molding apparatus having non-indexing ejector halves and indexing cover halves. Material is shot on an unexposed illumination side of the lens assembly from valve gated nozzle drops contained in the non-indexing ejector halves thereby producing a viewing side of the lens assembly free of surface blemishes and surface stress defects. Lens assemblies are retained in the indexing cover halves by retention mechanisms provided to overlap peripherally extreme features of the lens assemblies. Lens assemblies are affirmatively released from the non-indexing ejector halves by ejection pins or blades simultaneously with parting of the mold halves.