Abstract: A camera actuator is provided. The camera actuator according to an embodiment of the present invention comprises: a housing; and AF carrier which is mounted in the housing and moves in an optical-axis direction; an OIS carrier which is mounted in the AF carrier and moves in a direction perpendicular to the optical-axis direction; a first ball member which is disposed between the inner surface of the housing and the outer surface of the AF carrier to assist in the movement of the AF carrier; a second ball member which is disposed between the AF carrier and the OIS carrier to assist in the movement of the OIS carrier; and an OIS damper which is disposed between the inner surface of the AF carrier and the outer surface of the OIS carrier so as to reduce the impact generated between the AF carrier and the OIS carrier.

Abstract: An apparatus for auto focus having an improved stopper structure includes a base frame configured to give an inner space, a carrier accommodated in the base frame to move in an optical axis direction, a plurality of balls located between the base frame and the carrier, and a stopper provided at an upper portion of the carrier and having a protrusive shape to prevent the plurality of balls from deviating, the stopper allowing an uppermost ball among the plurality of balls to be partially exposed.

Abstract: A contact display method and a user terminal for performing the same are disclosed. The disclosed content display method identifies content included in a surrounding area of a user terminal, determines a position of the user terminal relative to the content, and outputs a virtual object augmentatively to a blind image corresponding to a blind region covered by the user terminal, on the basis of the content and the position of the user terminal.

Abstract: A input device for transmitting a user input using a magnetic field generator is disclosed. The input device for transmitting a user input to an electrical device may include a base portion fixed to a predetermined location of the electrical device, and a grip portion connected to the base portion through an elastic member and having a regression characteristic to return to a direction of the base portion in response to the grip portion being separated from the base portion by a preset distance or greater. A displacement or a rotation of the grip portion may be determined based on prior physical information of the input device and a value obtained by sensing a movement of the grip portion by a sensor in the electrical device.

Abstract: A user input device uses an alternating magnetic field, which is configured to accurately transmit and process a location, a direction and the like requested from a user by using the alternating magnetic field. The user input device using the alternating magnetic field includes a power source, a magnetic field generation unit, and a control unit which receives power and controls the magnetic field generation unit involved in generating and blocking the alternating magnetic field. Also, an electric apparatus includes a magnetic field sensor that detects the alternating magnetic field from the user input device.

Abstract: An electrical device is configured to determine a user input by using a mobile communication terminal provided with a magnetometer for accurate determination of a user input, through a control function performed by the magnetometer in response to the determined result. The electrical device includes a magnetic field sensor for sensing a magnetic field from an n-DOF external object provided with a magnetic field generating part, and producing a magnetic field vector of limited m dimensions, with n>m; and a control part for storing physical prior information about motions of the external object, and determining information about displacements and rotations of the external object based on the limited, m-dimensional magnetic field vector and the physical prior information.