| 摘要 |
PURPOSE:To efficiently generatively emit a light by winding a wire blank on the rotary shaft of a dynamo, and attaching the lower end of the blank to a vertically movable weight in a vertical cylinder. CONSTITUTION:A buoyage lamp is formed of a weight 10, a generator 2 and a light emitting unit 3 in a vertical cylinder 1, a wire 11 is wound once on the rotary shaft of a dynamo 20 protruding horizontally in the hollow cylinder 1 to form a winding 13, and its upper end is attached to the lower end of a spring 12 suspended from a ceiling plate in the cylinder 1. The vertically movable weight 10 in the cylinder lower than the rotary roller 21 of the dynamo 20 is attached to the lower end of the wire 11, light emitting diodes LEDs 30-31 are connected in anti-parallel therewith, and wired to the generation output end of the dynamo 20. Thus, when a vertical vibration is applied to the whole body of this device, the weight 10 is vertically moved in the cylinder 1, and the roller 21 of the dynamo 20 is reciprocated and rotated by the movements of the spring 12, the wire 11. As a result, the dynamo 20 generates an AC output, thereby emitting lights from the LEDs 30-31. |
