| 摘要 |
<p>An improved airplane warning sphere for day and night installed to an aerial wire, which lights illuminating elements at night by using the electricity charged by solar cells at day so that a pilot of a helicopter or airplane may easily recognize the sphere at night as well as at day, includes a body (20), a solar cell unit (42) for generating electricity by using the rays of the sun, illuminating elements (46) installed in the body to emanate light by using the electricity supplied from the solar cell unit, a plurality of optic fibers (48) connected to the illuminating elements for transferring light toward the body, and a controller (50) for charging the electricity generated from the solar cell unit and providing the charged electricity to the illuminating elements when the sunshine is less than a predetermined level.</p> |
