| CPC H01L 33/504 (2013.01) | 20 Claims |
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1. A light emitting module, comprising:
a base having a circuit wire;
a circuit device disposed on the base; and
a plurality of light emitting devices disposed on the base, wherein the plurality of light emitting devices includes at least two light emitting devices that emit light having different color temperatures, and wherein each of the at least two light emitting devices includes:
a first light emitter emitting a first light having a first peak wavelength;
a second light emitter emitting a second light having a second peak wavelength different from the first peak wavelength, wherein the second peak wavelength is in the range of 420 nm to 440 nm; and
a wavelength conversion layer including at least three kinds of wavelength converters, wherein the wavelength conversion layer is configured to convert the first and second light emitted from the first and second light emitters into a third light;
wherein each of the at least two light emitting devices emits a fourth light having a spectral power distribution produced by a combination of the first light, the second light, and the third light;
wherein the second peak wavelength of the second light in the spectral power distribution has higher intensity than a reference spectral power distribution of black body radiation,
wherein the first peak wavelength of the first light in the spectral power distribution has lower intensity than the second peak wavelength of the second light in the spectral power distribution, and
wherein, when one of a maximum value of the spectral power distribution of the fourth light or a maximum value of a reference spectral power distribution of black body radiation is 100%, a difference between the spectral power distribution of the fourth light and the reference spectral power distribution is less than 20% at each wavelength in the wavelength range of 440 nm to 640 nm.
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