Driving apparatus and optical apparatus

A driving apparatus for driving an object, the apparatus comprising:

• a permanent magnet magnetized so as to have a plurality of poles, said permanent magnet having a magnetic flux;
• a coil that generates a magnetic field by the application of a voltage thereto, the magnetic field creating a force between said coil and said permanent magnet, the force created between said coil and said permanent magnet causing the permanent magnet to drive the object;
• position detecting means for detecting a position of the object using the magnetic flux of said permanent magnet;
• feedback means for feeding back information corresponding to the voltage applied to said coil to position information of the object obtained by said position detecting means;
• and
• optimizing means for optimizing an influence of feedback information from said feedback means on the position information of the object.

An optical apparatus comprising:

• an object;
• and
• driving means for driving said object, said driving means including:
• a permanent magnet magnetized so as to have a plurality of poles, said permanent magnet having a magnetic flux;
• a coil that generates a magnetic field by the application of a voltage thereto, the magnetic field creating a force between said coil and said permanent magnet;
• a driving member driven by the force created between said coil and said permanent magnets said driving member thereby driving said object;
• position detecting means for detecting a position of said object using the magnetic flux of said permanent magnet;
• correction information forming means for forming correction information in accordance with the voltage applied to said coil;
• and
• correction means for correcting a driving amount of said driving member on the basis of the correction information.

An optical apparatus comprising:

• an object;
• and
• driving means for driving said object, said driving means including:
• a permanent magnet magnetized so as to have a plurality of poles, said permanent magnet having a magnetic flux;
• a coil that generates a magnetic field by the application of a voltage thereto, the magnetic field creating a force between said coil and said permanent magnet, the force created between said coil and said permanent magnet causing the permanent magnet to drive said object;
• position detecting means for detecting a position of said object using the magnetic flux of said permanent magnet;
• feedback means for feeding back information corresponding to the voltage applied to said coil to position information of said object obtained by said position detecting means;
• and
• optimizing means for optimizing an influence of feedback information from said feedback means on the position information of said object.

A driving apparatus for driving an object, said driving apparatus comprising:

• a permanent magnet magnetized so as to have a plurality of poles, said permanent magnet having a magnetic flux;
• a coil that generates a magnetic field by the application of a voltage thereto, the magnetic field creating a force between said coil and said permanent magnet;
• a driving member driven by the force created between said coil and said permanent magnet, said driving member thereby driving the object;
• velocity detecting means for detecting a movement velocity of the object using the magnetic flux of said permanent magnet;
• and
• control means for controlling the voltage applied to said coil on the basis of velocity information of the object detected by said velocity detecting means.

An optical apparatus comprising:

• an object;
• and
• driving means for driving said object, said driving means including:
• a permanent magnet magnetized so as to have a plurality of poles, said permanent magnet having a magnetic flux;
• a coil that generates a magnetic field by the application of a voltage thereto, the magnetic field creating a force between said coil and said permanent magnet;
• a driving member driven by the force created between said coil and said permanent magnet, said driving member thereby driving said object;
• velocity detecting means for detecting a movement velocity of said object using the magnetic flux of said permanent magnet;
• and
• control means for controlling the voltage applied to said coil on the basis of velocity information of said object detected by said velocity detecting means.

A driving apparatus for driving an object, said driving apparatus comprising:

• a permanent magnet magnetized so as to have a plurality of poles, said permanent magnet having a magnetic flux;
• a coil that generates a magnetic field by the application of a voltage thereto, the magnetic field creating a force between said coil and said permanent magnet;
• a driving member driven by the force created between said coil and said permanent magnet, said driving member thereby driving the object;
• moving state detection means for detecting a moving state of the object using the magnetic flux of said permanent magnet;
• correction information forming means for forming correction information in accordance with the magnetic field generated by energizing said coil;
• and
• correction means for correcting a driving amount of the driving member on the basis of the correction information.