| 摘要 |
<p>The headlight has an elliptical reflector in which a light source e.g. LED lamp, is arranged to produce a light beam. A light beam deformation unit comprises a disconnecting strip (12) moving between a position in which the strip does not intercept the beam and another position in which the strip intercepts a portion of the beam. An electric actuator of the strip includes a step-by-step electric motor (20) and a detector e.g. Hall effect detector, to detect angular position of the strip by using a sensor (26). The motor and the sensor are mounted on a single printed circuit support (30).</p> |
