| 摘要 |
One example of a filter driving device can comprise: a filter; a coupling part to which the filter is coupled; a crank arm of which one side is connected to the coupling part and of which the other side is connected to a driving shaft, and which reciprocatingly rotates around the driving shaft; a first stopper provided at a part close to the driving shaft from the center portion of the crank arm, and restricting the rotational angle of the crank arm; and an accommodation part for accommodating the filter, the coupling part and the crank arm. |
