Title:
移動装置および光学部材移動装置
Document Type and Number:
Japanese Patent JP4653509
Kind Code:
B2
Abstract:
A driving device in a lens barrel unit of a lens unit drives advancing/retreating of a lens frame holding a lens, and manual focusing. The lens frame is supported freely movably back and forth by an internal driving ring turned and driven when automatic focusing. The internal driving ring is supported by a distance ring so as to be turned and driven via an external driving ring supported turnably by a fixing frame. An operating ring is fixed on the perimeter of the distance ring, and manual focusing driving is performed by turning the operating ring. A transducer of an ultrasonic actuator is pressed against the end face of the distance ring via a driver, frictional contact force between the distance ring and the driver is adjusted by applying flexion standing wave vibration to the transducer, and the amount of turning operating force of the operating ring can be increased/decreased over a wide range.
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Inventors:
Sumio Kawai
Application Number:
JP2005030978A
Publication Date:
March 16, 2011
Filing Date:
February 07, 2005
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
Olympus Imaging Corporation
Olympus Imaging Corporation
International Classes:
G02B7/08; G02B7/02; G02B7/04; G03B3/00; G03B17/12; G03B19/12; H01L41/09
Domestic Patent References:
| JP59101608A | ||||
| JP8179183A | ||||
| JP3053209A | ||||
| JP2004233402A | ||||
| JP2002238270A | ||||
| JP2002023039A | ||||
| JP3630922B2 |
Attorney, Agent or Firm:
Susumu Ito