Patent ID: 8608340

Claim:
A light-emitting module comprising: a module substrate; a first wiring pattern provided on the module substrate and having a common wire connecting portion; a second wiring pattern provided on the module substrate around the first wiring pattern and opposite in polarity from the first wiring pattern, the second wiring pattern having a first wire connecting portion which defines a first element arrangement area between the first wire connecting portion and the common wire connecting portion, a second wire connecting portion which is opposite to the first wire connecting portion across the common wire connecting portion and which defines a second element arrangement area between the second wire connecting portion and the common wire connecting portion, and a middle pattern portion connecting the first wire connecting portion to the second wire connecting portion; a first light-emitting element group arranged in the first element arrangement area and including semiconductor light-emitting elements connected in series and electrically connected to the common wire connecting portion and the first wire connecting portion; and a second light-emitting element group arranged in the second element arrangement area and including semiconductor light-emitting elements connected in series and electrically connected to the common wire connecting portion and the second wire connecting portion.