Patent ID: 7201073

Claim:
An angle adjusting device comprising: a pedestal having first and second setting planes crossing each other; a guide member fixed to the pedestal and including a track forming portion, an arcuate track formed on the track forming portion and base portion having first and second reference planes; an oscillation body moved along the track of the guide member; and a moving member for moving the oscillation body to adjust the angular position of the oscillation body around an oscillation axis passing through a center of radius of curvature of the track, said oscillation body being substantially parallel to said oscillation axis, wherein the track forming portion and the base portion are formed integrally, and the guide member is fixed to the pedestal in a state where the first and second reference planes are in contact with the first and second setting planes of the pedestal, wherein the guide member is fixed to the pedestal so that the first reference plane is pressed against the first setting plane by a first screw penetrating through the first setting plane and the first reference plane, and fixed to the pedestal so that the second reference plane is pressed against the second setting plane by a second screw penetrating through the second setting plane and the second reference plane.