Patent attributes
A lighting apparatus including a white light emitting device including at least one first light emitting diode and a wavelength converter, and at least one second light emitting diode emitting light suitable for producing a cell activating substance, in which the first light emitting diode emits light having a central wavelength in a range of about 300 nm to about 420 nm, the second light emitting diode emits light having a central wavelength in a range of about 605 nm to about 935 nm, the wavelength converter includes wavelength conversion substances to convert light of the first light emitting diode into white light, and, in irradiance spectrum of the white light implemented in the white light emitting device, an irradiance at the central wavelength of light emitted from the first light emitting diode is less than that at a peak wavelength of blue light emitted from the wavelength conversion substance.
