Patent ID: 7821025

Claim:
A semiconductor light emitting unit comprising: a support which comprises a radiator and a plastic encapsulant, said radiator comprising an upper surface, longitudinal outer surfaces, transverse outer surfaces and a depression formed on the upper surface to form inner ramps and a mount surface between said inner ramps, said plastic encapsulant hermetically closing the upper surface, longitudinal outer surfaces and a portion of the transverse outer surfaces of said radiator to form longitudinal side walls disposed opposite to each other, a pair of light reflective surfaces, a bottom wall connected to said side walls and a channel by said side walls and bottom wall above said mount surface, said channel being communicated with the depression of the radiator, semiconducting light emitters secured on said mount surface of said radiator, and a light transmitting protective resin filled in said depression of the radiator and said channel of the plastic encapsulant for encapsulating said semiconducting light emitters, wherein said channel has at least one vertical opening formed at either end of said channel in the longitudinal direction of said support, and at least one end surface of said protective resin in the longitudinal direction of said support is directly exposed to outside through said vertical opening.