| 摘要 |
When a mirror angle is automatically displaced toward a target position, if the movement is mechanically locked before reaching the target position, power supply to a motor can promptly be halt, and in the case of a low temperature and a low voltage where the operating speed is slow, the mirror angle can also reach the target position. If time during which no change in the mirror angle is detected after the start of power supply exceeds a long-term determination period, the power supply to the motor is halted. |
