Patent ID: 6501532
Filing Date: 2002-12-31
Classification: G03B,G03F

Abstract:
A stage apparatus comprising:a stage movable in a first direction parallel to a stage traveling plane and also in a second direction substantially perpendicular to the stage traveling plane, the stage traveling plane being a plane formed by a point on said stage moving in a plurality of different first directions; first direction moving means for moving said stage by a specified distance in the first direction; calculation means for calculating a deviation in the second direction with respect to a reference plane, the reference plane being at an angle with respect to the stage traveling plane, the deviation occurring as a result of said first direction moving means moving said stage in the first direction, said calculation means calculating the deviation based on the specified distance and the angle; and second direction moving means for moving said stage in the second direction, during the movement of said stage in the first direction by said first direction moving means, so as to compensate for the deviation calculated by said calculation means.