| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting system that facilitates setting of color balance, as well as, is high in electrical/optical conversion efficiency and luminance. <P>SOLUTION: This planar light emitting device is provided with a light source 11 emitting a primary light; and a wavelength conversion part 12, comprising a plurality of phosphors, each absorbing the primary light to emit secondary light, having a peak wavelength longer than the peak wavelength of the primary light. The wavelength conversion part has an absorption band where the secondary light emitted from at least one of the phosphors is absorbed by the other phosphors and is structured, such that the plurality of phosphors comprise a plurality of cells arranged, in a planar shape that does not overlap one another in the optical path direction. <P>COPYRIGHT: (C)2009,JPO&INPIT |
