ACTUATOR AND HEAD LAMP COMPRISING SAME

According to the present invention, there may be provided an actuator comprising: a shaft; a rotor surrounding the shaft, a stator arranged outside the rotor a moving portion coupled to the shaft, a housing that holds the shaft and a substrate that is arranged on the housing and comprises a sensor portion for sensing the position of the moving portion, wherein the moving portion comprises a magnet, the sensor portion comprises a first sensor and a second sensor for sensing the amount of magnetic flux change according to the position of the magnet, the first sensor generates a first signal including an area in which a measured voltage increases as the magnet moves away from the first sensor, and the second sensor generates a second signal including an area in which the measured voltage decreases as the magnet moves away from the second sensor.