Patent ID: 9653651
Date: 2017-05-16
CPC Classifications: H01L

Claim:
1. A light emitting device comprising: an oriented polycrystalline substrate that includes a plurality of oriented crystal grains; a plurality of columnar light emitting parts that are each a columnar part having a longitudinal direction matching a normal direction of said oriented polycrystalline substrate, and are discretely located on or above one main surface of said oriented polycrystalline substrate at positions which are included in positions of lattice points of a planar lattice and under which there are no crystal defects, said lattice points being imaginarily determined on said one main surface of said oriented polycrystalline substrate and having a pitch between two adjacent columnar light emitting parts; a light confinement layer that is made of a material having a lower refractive index than a material for said plurality of columnar light emitting parts, and is located on or above said oriented polycrystalline substrate so as to surround said plurality of columnar light emitting parts; and an imperfect columnar part that is a columnar part having a shorter longitudinal size than said plurality of columnar light emitting parts, and is located on or above said one main surface of said oriented polycrystalline substrate at a position which is included in said positions of said lattice points of said planar lattice and under which there is a crystal defect.