| 摘要 |
The invention relates to a semaphore illuminator, which comprises at least two superimposed plates (1, 2), at least one of which contains information, and a light source (5) for illuminating the plate structure. The plates (1, 2) are spaced apart by seals (3) arranged between the plate edges to close, in a watertight manner, an intermediate space (4) formed between two adjacent plates. <IMAGE> |
