Patent ID: 7719024

Claim:
A light emitting device comprising: conductive lead arrangement that has a first surface and a second surface opposed to the first surface; a package that covers at least the first surface side of the lead arrangement and has an opening recessed as viewed in a cross-section, the opening being formed so that the first surface is partially exposed in the bottom of the opening; a semiconductor light emitting element that is thermally conducted to and secured on the first surface of the lead arrangement in the bottom of the opening of the package; and a sealing resin that seals the opening of the package, wherein both ends of the lead arrangement project outward from side surfaces of the package to form outer lead regions, wherein each of the outer lead regions includes a pair of outer lead projections and lead terminal smaller projection(s) that is/are located between the outer lead projections, the outer lead projections and lead terminal smaller projection(s) projecting outward, wherein adjustment is made to the projection amount(s) of end surface(s) of the lead smaller projection(s) lying in a plane perpendicular to a longitudinal direction of the lead arrangement, whereby the end surface(s) projecting less than end surfaces of the outer lead projections.