| http://www.w3.org/ns/prov#value | - It is preferable that the phosphor is a yellow or a green emitting phosphor that is excited by an emission of the blue light-emitting diode and emits light in a range between green and yellow, and the phosphor has an emission distribution in which a spectral half-width of the phosphor is wider than the spectral half-widths of the light-emitting diodes.
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