| 摘要 |
PROBLEM TO BE SOLVED: To provide a curb stone rivet that efficiently performs lighting at night on the basis of an electromotive force generated in the daytime by a solar battery.SOLUTION: A curb stone rivet for being attached to an upper part of a curb stone includes: a solar battery that performs photoelectric conversion by receiving natural light; a storage device that is charged with an electromotive force of the solar battery; a luminous body that is lit on the basis of electric power discharged from the storage device; a light storge part that is irradiated with light of the luminous body; an illuminance sensor that detects illuminance of the natural light; and a control circuit that controls lighting performed by the luminous body, depending on the illuminance detected by the illuminance sensor. |
