Patent ID: 11870016
Assignee: SEOUL SEMICONDUCTOR CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A lighting apparatus comprising:
a base having a wire circuit;
a circuit device disposed on the base; and
a light emitting device disposed on the base, the light emitting device comprising:
a first light emitter emitting light having a first peak wavelength;
a second light emitter emitting light having a second peak wavelength different from the first peak wavelength; 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 at least one of the wavelength converters comprises a phosphor having a particle size of about 15 μm or less;
wherein at least one of the wavelength converters has a high humidity resistance;
wherein the light emitting device 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; and
wherein, when one of a maximum value of the spectral power distribution of the fourth light or a maximum value of the 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.