Abstract: A vibrator equipped with a piezoelectric element comprises: a case of which an upper or lower surface is coupled to an object to be vibrated; a vibrating part which is disposed in the case; a piezoelectric element which is coupled to the vibrating part so as to be deformed, thereby vibrating the vibrating part up and down; and a power supply part which supplies power to the piezoelectric element. The vibrating part is formed with a hooking protrusion which is protruded laterally, and the case is formed with a hooking groove which restricts an up/down and lateral moving distance of the hooking protrusion.

Abstract: A camera actuator having autofocusing and image stabilization functions includes a fixing part mounted on a portable terminal; a first coil mounted on the fixed part; a first carrier installed to be movable in the direction parallel with the lens within the fixing part; a magnet mounted on the first carrier in such a manner that the outside surface of the magnet faces the first coil; a second carrier installed to be movable in the direction of an optical axis of the lens within the first carrier and moving along with the first carrier; a second coil mounted on the second carrier, disposed within the magnet and generating a second driving force to the second carrier; a lens part including at least one lens, mounted on the second carrier, and moving along with the second carrier; and a hall sensor sensing the position of the first carrier.

Abstract: The present invention relates to a haptic actuator that generates vibration, and more particularly, to a vibration actuator that can reduce falling time of vibration after applied power is blocked while maintaining a vibration force.

Abstract: The present invention relates to a haptic actuator, and the vibrating body includes a first magnet and a second magnet that are disposed on one end of the coil member in the vertical direction to be spaced apart from each other; a third magnet and a second magnet that are disposed on the other end of the coil member in the vertical direction to be spaced apart from each other; a first magnetic body that is mounted on one end of the first magnet and the third magnet in the horizontal direction; a second magnetic body that is mounted on the other end of the second magnet and the fourth magnet in the horizontal direction; and the first weight and the second weight that is mounted the first magnetic body and the second magnetic body respectively, the polarities of the first magnet and the second magnet having a north pole in the direction facing each other and a south pole in the opposite direction thereof, and the polarities of the third magnet and the forth magnet having a north pole in the direction facing eac