| 摘要 |
<p>A sandwich structure (5) is formed by a base layer (2) and a protective layer (4) that are assembled together through the interposition of a spacer layer (3) therebetween, in such a manner as to form a tightly sealed, insulated hollow space (13), in which high-luminosity LEDs are arranged to illuminate the number plate through transparent portions (14) of the protective layer (4). The LEDs are adapted to be connected to a power supply through conductive paths (20, 21) provided on the inner surface of the base layer (2).</p> |
