| 摘要 |
<p>The device (D) has a source (SP) e.g. LED, for supplying a light beam, and a driving unit (ME) to drive a movable component (EM) between a closed position in which the component occults the beam partially, and an open position in which the component does not occult the beam. The component includes a proper source (SS) e.g. LED, that generates visible light externally irrespective of the closed or open position of the component when the source is supplied with power. The proper source is equipped with an electrical supply unit to be connected to an electric fuel system of an optical block.</p> |
