| 摘要 |
PURPOSE:To lengthen the life of a main battery by forming a light-receiving surface for a solar battery to a surface bathed in solar rays in a sun visor for an automobile. CONSTITUTION:The light-receiving surfaces 4a of, a solar battery 4 capable of being electrically connected to a cigar lighter or a main battery (not shown) are shaped to the surface 3a of a sun visor 3 for an automobile 1. The light- receiving surfaces 4a are connected electrically to the cigar lighter or the main battery by a cord 6. Consequently, the light-receiving surfaces can be adjusted in conformity with the illuminating angle of solar rays without damaging an object as the sun visor, thus efficiently using the solar battery. The main battery is charged at all times by previously directing the sun visor toward the front glass side on parking, thus lengthening the life of the main battery. |
