A light emitting device includes a light emitting element having an
emission peak wavelength of 350 nm-420 nm and a phosphor absorbing light
from this light emitting element and emitting fluorescence having a
different emission peak wavelength. The phosphor is formed of a
semiconductor material that allows the emission peak wavelength to be
controlled by transition across the bandgap, and is configured with four
or more fluorescences having different emission peak wavelengths. Thus,
it is possible to provide a light emitting device which has a relatively
simple structure to keep high theoretical efficiency limit and achieves
good general color rendering index (Ra) and special color rendering index
(R9).