Semiconductor light emitting device and semiconductor light emitting unit

摘要

A semiconductor light emitting device includes: an outer surrounding body having a recessed portion formed in an upper surface of the outer surrounding body; a lead terminal led out from a side surface of the outer surrounding body; and a semiconductor light emitting element disposed in the recessed portion. The outer surrounding body has a cut portion formed at a corner defined by a cross point of extension lines of adjacent sides in a planar outline of the outer surrounding body viewed from the upper surface of the outer surrounding body. The lead terminal is led out from the cut portion.