| abstract |
The present invention provides a white light emitting device that has both high color rendering and high luminous efficiency. A white light emitting device of an embodiment includes a light emitting element having a peak wavelength in a wavelength region of 430 nm or more and 470 nm or less, a first phosphor that emits light having a first peak wavelength of 525 nm or more and 560 nm or less, and a first peak A second phosphor emitting light of a second peak wavelength longer than the wavelength, and a third phosphor emitting light of a third peak wavelength of 620 nm or more and 750 nm or less longer than the second peak wavelength. And, when the first phosphor and the second phosphor have a composition of MSi α O β N γ , and the first peak wavelength is λ 1 (nm) and the second peak wavelength is λ 2 (nm), 1100 ≦ λ 1 + λ 2 And λ2-λ1 ≦ 60. |