Patent ID: 7821022

Claim:
A light emitting device, comprising: a light emitting diode to emit light having a first wavelength with a main peak in at least one wavelength range selected from ultraviolet, blue and green wavelength ranges; and nanowire phosphors to convert at least a portion of light having the first wavelength emitted from the light emitting diode into light with a second wavelength longer than the first wavelength, wherein the nanowire phosphor is a nanowire comprising a nitride expressed by a general formula Al x In y Ga (1-x-y) N (0≦x<1, 0<y<1, 0<x+y≦1), and wherein the Al x In y Ga (1-x-y) N nanowire phosphor has a composition ratio varying in a longitudinal direction such that the light having the second wavelength has at least two main peaks.