Lens barrel and optical equipment

An optical equipment comprising:

• a vibration motor including an annular rotor and an annular stator provided coaxially with an optical axis of said optical equipment;
• a first rotary ring for rotating about the optical axis;
• a second rotary ring comprising first rotary members, for rotating about respective rotary shafts extending in a radial direction perpendicular to the optical axis, which are pinched by said rotor and said first rotary ring so as to effect revolution by receiving a rotational force from said rotor or said first rotary ring;
• a first pressurizing member for applying pressure to said stator for maintaining said rotor and said stator of said vibration motor in mutual pressure contact;
• and
• a second pressurizing member for applying pressure to said first rotary ring for maintaining said first rotary ring and said first rotary members in mutual pressure contact,
• wherein said first rotary ring, said rotor, and said first rotary members constitute a differential mechanism, and said first rotary members effect revolution about the optical axis by said differential mechanism and rotate said second rotary ring about the optical axis.

A driving device comprising:

• a vibration motor including a rotor and a stator provided coaxially;
• a first rotary ring for rotating about an axis;
• a second rotary ring comprising first rotary members which are pinched by said rotor and said first rotary ring so as to effect revolution by receiving a rotational force from said rotor or said first rotary ring, said second rotary ring being rotated by the rotating of said first rotary members;
• a first pressurizing member for applying pressure to said stator for maintaining said rotor and said stator of said vibration motor in mutual pressure contact;
• and
• a second pressurizing member for applying pressure to said first rotary ring for maintaining said first rotary ring and said first rotary members in mutual pressure contact.

An optical equipment comprising:

• a vibration motor including a rotor and a stator provided coaxially;
• a first rotary ring for rotating about an axis;
• a second rotary ring comprising first rotary members which are pinched by said rotor and said first rotary ring so as to effect revolution by receiving a rotational force from said rotor or said first rotary ring, said second rotary ring being rotated by the rotating of said first rotary members;
• a first pressurizing member for applying pressure to said stator for maintaining said rotor and said stator of said vibration motor in mutual pressure contact;
• and
• a second pressurizing member for applying pressure to said first rotary ring for maintaining said first rotary ring and said first rotary members in mutual pressure contact.