LIGHT EMITTING DEVICE, PHOSPHOR FOR LIGHT EMITTING ELEMENT AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a high reliable light emitting device or the like which is excellent in a thermal resistance.

SOLUTION: The light emitting device is equipped with a light emitting element; and a phosphor arranged around the light emitting element so as to absorb at least a part of a light emitted from the light emitting element, and to convert the absorbed light into a distinct wavelength. The phosphor consists of a nitride system fluorescence material or an oxynitride system fluorescence material which contains nitrogen, and a front surface of the phosphor is processed by a compound containing phosphorus. This configuration makes it possible to prevent the phosphor made of a nitride and an oxynitride from oxidizing, and to suppress a deterioration of the phosphor and to stably use the phosphor for a long period of time.

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