Abstract: The embodiment disclosed herein is an actuator for reflectometer, the actuator comprising a carrier attached with a reflectometer and equipped with a first magnet; a middle guide to support the rotation of the carrier about a first direction; at least one first ball positioned between the carrier and the middle guide; a second magnet equipped to the middle guide; a pulling magnet equipped to the carrier and facing the second magnet; and a first coil to impart a driving force to the first magnet; wherein the pulling magnet comprises a counterpart magnetic pole having an opposite polarity to a facing magnetic pole of the second magnet, with the facing magnetic pole being positioned towards the pulling magnet.

Abstract: An actuator for a reflector. The actuator includes: a carrier at which a reflector is installed; first and second magnets installed at the carrier and placed in directions perpendicular to each other, a ball guide configured to support rotational movement of the carrier in a first direction; a first ball placed between the carrier and the ball guide; a housing configured to support rotational movement of the ball guide in a second direction perpendicular to the first direction; and a second ball placed between the ball guide and the housing.

Abstract: An actuator for cameras includes a carrier having a lens attached thereto and movable along an optical axis, a housing enclosing the carrier, at least one magnet mounted on the carrier and having k magnetic poles where k is a natural number equal to or larger than one, coils facing the magnet and disposed anterior or posterior along the optical axis, a Hall sensor assembly having m Hall sensors where m is a natural number equal to or larger than three, disposed along the optical axis, each of the m Hall sensors separated from one another by a first spacing, and an operational driver controlling the current applied to the coils in response to the signals from the Hall sensor assembly, in which the length of the magnetic pole is not less than the first spacing but not more than twice the first spacing.

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.