A light emitting device for enhancing emission efficiency and color
rendering, comprising: a light source; a first emitting section having a
luminescent material emitting light including a wavelength component
longer than that of light from the light source when excited by the light
from the light source; a second emitting section having a luminescent
material emitting light including a wavelength component longer than that
of the light from the first emitting section when excited by the lights
from the light source and the first emitting section; and a light exit
side from which the light from the light source, the first light-emitting
section and the second light-emitting section emerges outside; and the
first emitting section and the second emitting section are opened at the
light exit side, and an area of a boundary surface between the first
emitting section and the second emitting section is equal to or less than
fifty percent of the surface area of the first emitting section.