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Excitation and emission spectra of phosphor. for emission and for excitation.
Normalized emission spectra of a blue LED die and used four kinds of oxynitride/nitride phosphors.
Chromaticity coordinates on CIE1931 diagram of the fabricated extrahigh CRI white LED lamps.
Emission spectra of the fabricated extrahigh CRI white LED lamps, measured under a forward-bias current of at room temperature.
Optical properties of the fabricated extrahigh CRI white LED lamps using four kinds of oxynitride/nitride phosphors and a blue LED die.
Special CRI values from R9 to R15 of an incandescent light bulb color white LED lamp.
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