Patent ID: 7539223

Claim:
A light emitting device, comprising: a light emitting element configured to emit light with a first wavelength; and a light emitting conversion unit configured to convert the light with the first wavelength by using wavelength conversion materials including a short wavelength conversion material and a long wavelength conversion material, the short wavelength conversion material emits light with a second wavelength longer in wavelength than the light with the first wavelength by absorbing the light with the first wavelength, and the long wavelength conversion material emits light with a wavelength longer than the second wavelength by absorbing the light with the first wavelength, wherein a proportion of the short wavelength conversion material of the wavelength conversion materials included in a first region of the light emitting conversion unit is smaller than a proportion of the short wavelength conversion material of the wavelength conversion materials included in the entire light emitting conversion unit, and a proportion of the short wavelength conversion material of the wavelength conversion materials included in a second region, which is a region more distant from the light emitting element than the first region in the light emitting conversion unit, is larger than a proportion of the short wavelength conversion material of the wavelength conversion materials included in the entire light emitting conversion unit, and wherein the short wavelength conversion material is included more in the second region than the long wavelength conversion material.