Patent ID: 9028070
Filing Date: 2015-05-12
Classification: G02B,G03B,H01L,H04N

Abstract:
1. A light-emitting element comprising a substrate and a light emitting part disposed on the substrate, wherein said light emitting part includes a semiconductor layer comprising a plurality of layers including an active layer for generating light, said active layer configured to emit light in which light intensity of a polarization component in a first direction substantially parallel to said substrate is higher than light intensities of polarization components in other directions, and further includes a plurality of structural bodies disposed on a light-emitting side of said semiconductor layer and arrayed two-dimensionally along a surface substantially parallel to said active layer; each of said structural bodies has a width along said first direction and a width along a second direction perpendicular to said first direction, the width along said first direction and the width along the second direction being different from each other in a cross section parallel to said active layer; and said structural bodies are arrayed periodically at a first pitch along said first direction and arrayed periodically at a second pitch, which is different from said first pitch, along said second direction.