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Patent Searching and Data


Title:
レンズ鏡胴、レンズ駆動装置、カメラおよび携帯型情報端末装置
Document Type and Number:
Japanese Patent JP4447491
Kind Code:
B2
Abstract:
A lens barrel includes a plurality of lens groups each having at least one lens; a plurality of lens retaining frames which retain a corresponding one of the plurality of lens groups; a telescopic cylinder containing therein the plurality of lens groups and the plurality of lens retaining frames; a lens retaining frame driving device configured to drive at least one of the lens retaining frames; a moving member which moves in a direction along the photographing optical axis; and a position detector configured to detect a change in a position of the moving member, wherein the plurality of lens retaining frames including a retractable lens retaining frame configured to retract the at least another one of the plurality of lens groups from the photographing optical axis to a retracted position out of the telescopic cylinder in the collapsed state.

Inventors:
Kunohiko Nuno
Application Number:
JP2005063318A
Publication Date:
April 07, 2010
Filing Date:
March 08, 2005
Export Citation:
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Assignee:
株式会社リコー
International Classes:
G02B7/08; G02B7/04; G03B5/00; G03B17/04
Domestic Patent References:
JP2004361921A
JP200653445A
JP2006154674A
Attorney, Agent or Firm:
Tamio Nishiwaki