| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device using an organic EL element, wherein the lighting device obtains illumination light with a desired color tone by absorbing light of a component which is desirable in color tone and has a long wavelength among wavelength components of light emitted by the organic EL element as a light source and raising the color temperature, and also recycles energy of the absorbed light, and a method of manufacturing the same. <P>SOLUTION: The present invention relates to the lighting device 1 that emits the illumination light which has the desired color tone and is friendly to the eye by: converting part of light of first color temperature emitted by the organic EL element 22 serving as the light source into second color temperature higher than the first color temperature by an organic photoelectric conversion element 32; and generating recyclable electricity by the organic photoelectric conversion element 32, the lighting device 1 having superior energy efficiency and being excellently thin and lightweight. <P>COPYRIGHT: (C)2011,JPO&INPIT |
