Patent ID: 7078738

Claim:
A light-emitting device comprising: a substrate portion having at least one mount surface; a first light-emitting element and a second light-emitting element mounted on a same mount surface side; and four internal electrodes revealed on the at least one mount surface of said substrate portion, said four internal electrodes comprising: a first internal positive electrode connected to a positive electrode side of said first light-emitting element; a first internal negative electrode connected to a negative electrode side of said first light-emitting element; a second internal positive electrode connected to a positive electrode side of said second light-emitting element; and a second internal negative electrode connected to a negative electrode side of said second light-emitting element, wherein said four internal electrodes are provided such that said first internal positive electrode and said second internal positive electrode are disposed diagonally while the first internal negative electrode and the second internal negative electrode are disposed diagonally, wherein said first light-emitting element is mounted on either of said first internal positive electrode and said first internal negative electrode, wherein said second light-emitting element is mounted on either of said second internal positive electrode and said second internal negative electrode, and wherein said internal electrodes on which said first light-emitting element and said second light-emitting element are mounted respectively comprise areas larger than those of other internal electrodes.