A light emitting device, comprising: light emitting diodes to primarily emit light having different wavelengths in a wavelength range of ultraviolet rays and/or blue light; and a wavelength-conversion means to convert the primary light into secondary light in a visible light wavelength range, wherein said light emitting diodes include: a first light emitting diode having a peak emission wavelength between 360 and 420 nm; a second light emitting diode having a peak emission wavelength between 400 and 450 nm; and a third light emitting diode having a peak emission wavelength between 430 and 500 nm wherein the first to third light emitting diodes have different peak emission wavelengths from one another, and the wavelength conversion means includes any one selected from a first phosphor having a peak emission wavelength between 440 and 500 nm, a second phosphor having a peak emission wavelength between 500 and 590 nm, a third phosphor having a peak emission wavelength between 580 and 700 nm, and mixtures thereof, and wherein the light emitting diodes to emit primary light and the wavelength-conversion means are mounted in a single package, and wherein the primary light generated by the light emitting diodes is combined with the secondary light converted by the phosphors. light emitting diodes to primarily emit light having different wavelengths in a wavelength range of ultraviolet rays and/or blue light; and a wavelength-conversion means to convert the primary light into secondary light in a visible light wavelength range, wherein said light emitting diodes include: a first light emitting diode having a peak emission wavelength between 360 and 420 nm; a second light emitting diode having a peak emission wavelength between 400 and 450 nm; and a third light emitting diode having a peak emission wavelength between 430 and 500 nm wherein the first to third light emitting diodes have different peak emission wavelengths from one another, and the wavelength conversion means includes any one selected from a first phosphor having a peak emission wavelength between 440 and 500 nm, a second phosphor having a peak emission wavelength between 500 and 590 nm, a third phosphor having a peak emission wavelength between 580 and 700 nm, and mixtures thereof, and wherein the light emitting diodes to emit primary light and the wavelength-conversion means are mounted in a single package, and wherein the primary light generated by the light emitting diodes is combined with the secondary light converted by the phosphors. a first light emitting diode having a peak emission wavelength between 360 and 420 nm; a second light emitting diode having a peak emission wavelength between 400 and 450 nm; and a third light emitting diode having a peak emission wavelength between 430 and 500 nm wherein the first to third light emitting diodes have different peak emission wavelengths from one another, and the wavelength conversion means includes any one selected from a first phosphor having a peak emission wavelength between 440 and 500 nm, a second phosphor having a peak emission wavelength between 500 and 590 nm, a third phosphor having a peak emission wavelength between 580 and 700 nm, and mixtures thereof, and wherein the light emitting diodes to emit primary light and the wavelength-conversion means are mounted in a single package, and wherein the primary light generated by the light emitting diodes is combined with the secondary light converted by the phosphors.