Patent ID: 8686457

Claim:
A semiconductor light emitting element, comprising: a substrate comprising a plurality of protrusions; and a light emitting structure of a semiconductor provided on said substrate, wherein for each protrusion of said plurality of protrusions, a bottom portion of the protrusion is formed by constituent sides such that the bottom portion has a shape which is approximately triangular, and the plurality of protrusions are arranged in a plurality of aligning directions, wherein: a first aligning direction of said aligning directions intersects first constituent sides of said constituent sides of the bottom portions, and passes through vertexes where respective constituent sides of the bottom portions, different from said first constituent sides, meet, and a second aligning direction of said aligning directions intersects second constituent sides of the bottom portions which are different from the first constituent sides, and passes through vertexes vertex where constituent sides of the bottom portions, different from said second constituent sides, meet, and a third aligning direction of said aligning directions intersects third constituent sides of the bottom portions which are different from the first constituent sides and from the second constituent sides, and passes through vertexes where constituent sides of the bottom portions, different from said third constituent sides, meet, and bottom portions of said plurality of protrusions, which are closest to each other, have the same aligning directions and thereby have the same orientation.