| 摘要 |
<p>Half-level light signaling device is formed by a casing, including a lower part, which houses electrical and/or electronic circuits and at least one light source, and a cap protruding from the ground and removably fastened to the lower part. The cap has at least one aperture, to which a prism is connected, as as to send outwards a light beam produced by the light source. The signaling device includes at least one antenna, embedded in the isolating material making up the cap, and having the terminals accessible from the lower part of the casing.</p> |
