US Patent 9625581 Three-dimensional (3D) emitting apparatus

A three-dimensional (3D) emitting apparatus includes a table on which an object is to be disposed, a robot arm to perform a task on the object, an emitting member provided at an end portion of the robot arm, and a controller to control an operation of the robot arm or a position of the emitting member, wherein the table and the robot arm may move relatively in a vertical or horizontal direction, the emitting member may move along a trajectory of rotation of the robot arm, and the trajectory of rotation may be provided in a form of a concentric sphere having a center at which a target point is disposed.