| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lighting system allowing effective replacement of a light-emitting part by providing an evaluation part for evaluating a state of the light-emitting part and an output part for outputting the evaluated result to the outside. SOLUTION: In this lighting system, a solar battery 3 for generating an electric output according to an illuminance of a fluorescent lamp 1 and an illuminance decision circuit 4 for deciding the illuminance of the fluorescent lamp 1 on the basis of the output of the solar battery 3 are provided on a reflection plate 2 of the fluorescent lamp 1. The solar battery 3 is provided near a base 5 where a change with the lapse of time in the illuminance is large due to a blackening phenomenon. Information obtained by the illuminance decision circuit 4 is displayed outside with an LED 6. By providing the LED 6 on the exterior of a lighting system cover 7, a state of the fluorescent lamp 1 can be known without detaching the lighting system cover 7. Thereby, replacement of the light-emitting part can be effectively performed.</p> |
