Anti-shake apparatus

1. An anti-shake apparatus of a photographing apparatus, comprising:

a movable unit that has one of an imaging device and a hand-shake correcting lens, and that has a position-detecting coil, and that can be moved in first and second directions, said first direction being perpendicular to an optical axis of a camera lens of said photographing apparatus, and said second direction being perpendicular to said optical axis and said first direction; and

a fixed unit that slidably supports said movable unit in both said first and second directions, and that has a magnetic-field change-detecting unit;

said magnetic-field change-detecting unit having a horizontal magnetic-field change-detecting element which is used for detecting a position of said movable unit in said first direction, as a first location, and a vertical magnetic-field change-detecting element which is used for detecting a position of said movable unit in said second direction, as a second location;

said position-detecting coil being a magnetic-field generating apparatus which is used for detecting said first and second locations, and having first and second position-detecting areas;

said first position-detecting area having first and second horizontal position-detecting segments;

said second position-detecting area having first and second vertical position-detecting segments;

said first and second horizontal position-detecting segments being parts of said position-detecting coil, and facing said horizontal magnetic-field change-detecting element, and being parallel to said second direction;

a direction of the current through said first horizontal position-detecting segment being opposite to a direction of the current through said second horizontal position-detecting segment;

said first and second vertical position-detecting segments being parts of said position-detecting coil, and facing said vertical magnetic-field change-detecting element, and being parallel to said first direction; and

a direction of the current through said first vertical position-detecting segment being opposite to a direction of the current through said second vertical position-detecting segment.

2. The anti-shake apparatus according to claim 1 , wherein said position-detecting coil is one position-detecting coil;

said first and second position-detecting areas are parts of said one position-detecting coil; and

an outer circumference of said position-detecting coil forms an L character shape, viewed from a third direction which is parallel to said optical axis.

3. The anti-shake apparatus according to claim 1 , wherein said position-detecting coil has a horizontal position-detecting coil section which has said first position-detecting area, and a vertical position-detecting coil section which has said second position-detecting area.

4. The anti-shake apparatus according to claim 3 , wherein said position-detecting coil forms one stroke drawing shape, where one of the terminals of said horizontal position-detecting coil section is connected with one of the terminals of said vertical position-detecting coil section.

5. The anti-shake apparatus according to claim 1 , wherein said position-detecting coil forms a seat and a spiral shape coil pattern.

6. The anti-shake apparatus according to claim 5 , wherein said position-detecting coil consists of a plurality of seat coils which are layered in a third direction which is parallel to said optical axis.

7. The anti-shake apparatus according to claim 1 , wherein when the center of one of said imaging device and said hand-shake correcting lens which is included in said movable unit, passes through said optical axis, said horizontal magnetic-field change-detecting element is located at a place on said magnetic-field change-detecting unit which faces an intermediate area between said first and second horizontal position-detecting segments in said first direction, and said vertical magnetic-field change-detecting element is located at a place on said magnetic-field change-detecting unit which faces an intermediate area between said first and second vertical position-detecting segments in said second direction.

8. The anti-shake apparatus according to claim 1 , wherein said horizontal magnetic-field change-detecting element and said vertical magnetic-field change-detecting element are hall elements.

9. An anti-shake apparatus of a photographing apparatus, comprising:

a movable unit that has one of an imaging device and a hand-shake correcting lens, and that has a position-detecting coil, and that can be moved on a plane which is perpendicular to an optical axis of a camera lens of said photographing apparatus; and

a fixed unit that supports said movable unit so as to be movable on said plane, and that has a magnetic-field change-detecting unit for detecting a position of said movable unit on said plane;

said position-detecting coil being a magnetic-field generating apparatus which is used for detecting said position, and having first and second position-detecting segments;

said first and second position-detecting segments being parts of said position-detecting coil, and facing said magnetic-field change-detecting unit, and being perpendicular to a movement direction of said movable unit and to said optical axis; and

a direction of the current through said first position-detecting segment being opposite to a direction of the current through said second position-detecting segment.