| 摘要 |
<p>The invention concerns a Back focus adjusting module (3) for a camera comprising a supporting structure (6), a linear actuator (11) with a motor (10), a gear mechanism (8) and a component carrier (7), whereby the gear mechanism (8) converts a rotational movement of the motor (10) into a linear motion and displaces the component carrier in a linear direction (9), a spring component (2) for biasing the component carrier (7) in a direction opposite to the linear direction (9), a slider (30) with at least one optical filter (31a, b), whereby the slider (30) can be (1) slid in a guiding slot (32) of the back focus adjusting module (3) between at least two sliding positions in a sliding direction (33), whereby the spring component (2) provides a guiding surface (34a, b, c) of the guiding slot (32) for the slider (30).</p> |
