| 摘要 |
PROBLEM TO BE SOLVED: To enable both of an irradiation target and a shade to illuminate with appropriate brightness by effectively utilizing for illumination of the shade leak light of an LED light source which does not contribute to illumination of the irradiation target.SOLUTION: A reflecting plate 15 is arranged face to face with a semitransparent shade 12 which is arranged to cover an LED light source 14 with an optical axis X arranged facing a display room direction of a showcase as an irradiation target, and leak light leaking directly from the LED light source 14 toward outside an irradiation range of direct light is reflected by the reflecting plate 15 toward the shade 12 to illuminate the shade 12. |
