Patent ID: 7880571

Claim:
A two-axis driving electromagnetic actuator comprising: a stage that is operative to be actuated about a first axis; a middle frame that is disposed outside the stage and supports the stage by the first axis; an inner frame that is disposed outside the middle frame and supports the middle frame by a second axis which is perpendicular to the first axis; an external frame that is disposed outside the inner frame and supports the inner frame by the second axis; a magnet that provides a magnetic field between the first axis and the second axis; a first driving coil that is formed on the inner frame and to which a first signal that actuates the stage in a direction of the second axis is applied; and a second driving coil that is formed on the inner frame and to which a second signal that actuates the stage and the inner frame in a direction of the first axis is applied, wherein the first driving coil and the second driving coil are electrically separated from each other, wherein the first driving coil and the second driving coil are disposed away from the stage.