Patent ID: 8791473
Filing Date: 2014-07-29
Classification: H01L

Abstract:
1. An illuminating device comprising at least a first nitride-based semiconductor light-emitting element and a second nitride-based semiconductor light-emitting element, wherein the first nitride-based semiconductor light-emitting element and the second nitride-based semiconductor light-emitting element each comprise a semiconductor chip, wherein the semiconductor chip comprises a nitride-based semiconductor multilayer structure formed from an Al wherein the Al wherein the first nitride-based semiconductor light-emitting element and the second nitride-based semiconductor light-emitting element each emit polarized light from the active layer region, and wherein, when the polarized light emitted from the first nitride-based semiconductor light-emitting element and the polarized light emitted from the second nitride-based semiconductor light-emitting element have wavelengths λ wherein an optical polarization ratio of the first nitride-based semiconductor light-emitting element is not less than 0.9, and wherein an optical polarization ratio of the second nitride-based semiconductor light-emitting element is not less than 0.9.