Movable coil driving unit
AssigneeKabushiki Kaisha Toshiba
InventorKenichi Takahara
Life of this patent
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Abstract
A movable coil driving unit comprises a driven member movably supported by conductive flexible supporting members with respect to a fixed member, a coil fixed to the driven member, and a driving member provided with a power source. One ends of the supporting members are connected to the ends of leads extending from the coil fixed to the driven member, and the other ends of the supporting members are connected to leads extending from the external power source.
Claims10
A movable coil driving unit comprising:
- a movable coil;
- a supporting structure, including a pivot joint, for supporting said coil thereon;
- a magnetic field inducing means for subjecting said coil to an magnetic field;
- and
- an electric energy supply for supplying electric current to said coil in order to move said coil by virtue of a magnetic force generated by said magnetic field,
- wherein the current supply is provided directly through said pivot joint which comprises a rotatable member and a fixed member, the fixed member being engaged with said rotatable member in a manner that electric current can pass from one member to the other.
A movable coil driving unit comprising:
- a movable coil;
- a supporting structure, including a pivot joint, for rotatably supporting said coil thereon, said pivot joint having a first member and a second member, rotatably and electrically engaged with each other;
- a magnetic field inducing means for subjecting said coil to a magnetic field;
- and
- an electric energy supply for supplying electric current to said coil directly through said pivot joint in order to move said member by a magnetic force generated in said magnetic field.
A movable coil driving unit, comprising:
- a magnetic coil;
- a support for rotatably supporting the coil,
- a magnetic field inducing means for subjecting the coil to a magnetic field;
- electrical energy supply means;
- and
- electrical connections between the support means and the coil for energizing the coil and causing the coil and the support to rotate in synchronism, whereby the electrical connections do not move relative to the synchronized movement of the support and the coil.
The rotatable coil driving unit of claim 14, in which the electrical energy supply means may be adjusted to supply current of selected amplitude and polarity, thereby controlling the distance and direction of movement of the coil.
Dependencies are inferred from the claim text.