JP2012042578A5 - - Google Patents

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Publication number
JP2012042578A5
JP2012042578A5 JP2010182052A JP2010182052A JP2012042578A5 JP 2012042578 A5 JP2012042578 A5 JP 2012042578A5 JP 2010182052 A JP2010182052 A JP 2010182052A JP 2010182052 A JP2010182052 A JP 2010182052A JP 2012042578 A5 JP2012042578 A5 JP 2012042578A5
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JP
Japan
Prior art keywords
cam
cylinder
zoom lens
barrel
cam portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2010182052A
Other languages
Japanese (ja)
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JP2012042578A (en
JP5791246B2 (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2010182052A priority Critical patent/JP5791246B2/en
Priority claimed from JP2010182052A external-priority patent/JP5791246B2/en
Priority to BRPI1103926A priority patent/BRPI1103926A2/en
Priority to US13/208,505 priority patent/US8456754B2/en
Priority to CN201110233304.9A priority patent/CN102375209B/en
Publication of JP2012042578A publication Critical patent/JP2012042578A/en
Publication of JP2012042578A5 publication Critical patent/JP2012042578A5/ja
Application granted granted Critical
Publication of JP5791246B2 publication Critical patent/JP5791246B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (5)

ベース部材と、
前記ベース部材に固定される直進筒と、
前記直進筒に対して回動可能に構成されたカム筒と、
前記直進筒に設けられた第１のカムフォロア及び第２のカムフォロアと、
複数の光学要素群と、を有し、
前記カム筒は、
前記第１のカムフォロアが当接し、前記直進筒に対する該カム筒の光軸方向における位置を決定する第１のカム部と、
前記第２のカムフォロアが前記カム筒の径方向において係合し、かつ、前記光軸方向である互いに異なる２方向において当接する第２のカム部と、を有することを特徴とするズームレンズ鏡筒。 A base member;
A rectilinear cylinder fixed to the base member;
A cam cylinder configured to be rotatable with respect to the rectilinear cylinder;
A first cam follower and a second cam follower provided in the straight cylinder;
A plurality of optical element groups,
The cam cylinder is
A first cam portion that abuts the first cam follower and determines a position of the cam cylinder in the optical axis direction relative to the rectilinear cylinder;
A zoom lens barrel comprising: a second cam portion that engages in a radial direction of the cam barrel and abuts in two different directions that are the optical axis directions of the second cam follower. . 前記第１のカム部は、前記カム筒の一端側に設けられ、
前記第２のカム部は、前記カム筒の他端側に設けられていることを特徴とする請求項１に記載のズームレンズ鏡筒。 It said first cam portion is provided on one end side of the cam barrel,
The zoom lens barrel according to claim 1, wherein the second cam portion is provided on the other end side of the cam barrel. 前記第１のカムフォロアは、前記第１のカム部に対して回転可能に構成されていることを特徴とする請求項１又は２に記載のズームレンズ鏡筒。   The zoom lens barrel according to claim 1, wherein the first cam follower is configured to be rotatable with respect to the first cam portion. 前記第２のカムフォロアは、前記第２のカム部の前記径方向において弾性的に係合可能に構成されていることを特徴とする請求項１乃至３のいずれか１項に記載のズームレンズ鏡筒。   4. The zoom lens mirror according to claim 1, wherein the second cam follower is configured to be elastically engageable in the radial direction of the second cam portion. 5. Tube. 前記ベース部材は、前記光軸方向において前記カム筒に当接する第３のカム部を有することを特徴とする請求項１乃至４のいずれか１項に記載のズームレンズ鏡筒。   5. The zoom lens barrel according to claim 1, wherein the base member has a third cam portion that contacts the cam barrel in the optical axis direction. 6.
JP2010182052A 2010-08-17 2010-08-17 Zoom lens barrel Expired - Fee Related JP5791246B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2010182052A JP5791246B2 (en) 2010-08-17 2010-08-17 Zoom lens barrel
BRPI1103926A BRPI1103926A2 (en) 2010-08-17 2011-08-12 zoom lens drum
US13/208,505 US8456754B2 (en) 2010-08-17 2011-08-12 Zoom lens barrel
CN201110233304.9A CN102375209B (en) 2010-08-17 2011-08-15 Zoom lens barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010182052A JP5791246B2 (en) 2010-08-17 2010-08-17 Zoom lens barrel

Publications (3)

Publication Number Publication Date
JP2012042578A JP2012042578A (en) 2012-03-01
JP2012042578A5 true JP2012042578A5 (en) 2013-09-12
JP5791246B2 JP5791246B2 (en) 2015-10-07

Family

ID=45899007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010182052A Expired - Fee Related JP5791246B2 (en) 2010-08-17 2010-08-17 Zoom lens barrel

Country Status (1)

Country Link
JP (1) JP5791246B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6362477B2 (en) 2014-08-27 2018-07-25 キヤノン株式会社 Lens barrel and imaging device
JP6524414B2 (en) * 2014-09-12 2019-06-05 パナソニックＩｐマネジメント株式会社 Lens barrel
JP7163244B2 (en) * 2019-04-25 2022-10-31 キヤノン株式会社 optical equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234112A (en) * 1985-08-07 1987-02-14 Olympus Optical Co Ltd Lens barrel with cam mechanism
JPH07287153A (en) * 1994-04-15 1995-10-31 Asahi Optical Co Ltd Focusing device for camera
JP3619460B2 (en) * 2000-02-01 2005-02-09 ペンタックス株式会社 Zoom lens barrel
JP5235570B2 (en) * 2008-09-16 2013-07-10 キヤノン株式会社 LENS DEVICE AND IMAGING DEVICE

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