JP2008152049A5 - - Google Patents

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Publication number
JP2008152049A5
JP2008152049A5 JP2006340332A JP2006340332A JP2008152049A5 JP 2008152049 A5 JP2008152049 A5 JP 2008152049A5 JP 2006340332 A JP2006340332 A JP 2006340332A JP 2006340332 A JP2006340332 A JP 2006340332A JP 2008152049 A5 JP2008152049 A5 JP 2008152049A5
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Japan
Prior art keywords
lens group
group
lens
refractive power
focal length
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JP2006340332A
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Japanese (ja)
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JP2008152049A (en
JP5028994B2 (en
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Priority claimed from JP2006340332A external-priority patent/JP5028994B2/en
Priority to JP2006340332A priority Critical patent/JP5028994B2/en
Priority to DE602007002449T priority patent/DE602007002449D1/en
Priority to EP07252829A priority patent/EP1881357B1/en
Priority to EP09009550.6A priority patent/EP2128676B1/en
Priority to AT07252829T priority patent/ATE443275T1/en
Priority to US11/779,830 priority patent/US7492524B2/en
Priority to CN2011101081924A priority patent/CN102176084B/en
Priority to CN2007101373150A priority patent/CN101109843B/en
Publication of JP2008152049A publication Critical patent/JP2008152049A/en
Publication of JP2008152049A5 publication Critical patent/JP2008152049A5/ja
Publication of JP5028994B2 publication Critical patent/JP5028994B2/en
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Expired - Fee Related legal-status Critical Current
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Claims (16)

物体側から順に、正の屈折力を有する第１レンズ群と、負の屈折力を有する第２レンズ群と、正の屈折力を有する第３レンズ群と、正の屈折力を有する第４レンズ群とを有し、
広角端状態から望遠端状態への変倍に際して、前記第１レンズ群と前記第２レンズ群との間隔が増大し、前記第２レンズ群と前記第３レンズ群との間隔が減少し、前記第３レンズ群と前記第４レンズ群との間隔が変化し、
前記第３レンズ群は、物体側から順に、正の屈折力を有する前群と、負の屈折力を有する後群とを有し、
前記後群を光軸と略直交する方向へ移動させることによって手ぶれ発生時の像面補正を行い、
さらに以下の条件式を満足することを特徴とするズームレンズ。
−０．２７５＜ｆ２／ｆ３＜−０．１００
但し、
ｆ２：前記第２レンズ群の焦点距離
ｆ３：前記第３レンズ群の焦点距離 In order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens having a positive refractive power And having a group
Upon zooming from the wide-angle end state to the telephoto end state, the distance between the first lens group and the second lens group increases, the distance between the second lens group and the third lens group decreases, The distance between the third lens group and the fourth lens group changes,
The third lens group, in order from the object side, has a front group having a positive refractive power and a rear group having a negative refractive power,
Perform image plane correction at the time of camera shake by moving the rear group in a direction substantially orthogonal to the optical axis,
The zoom lens further satisfies the following conditional expression:
−0.275 <f2 / f3 <−0.100
However,
f2: focal length of the second lens group f3: focal length of the third lens group 以下の条件式を満足することを特徴とする請求項１に記載のズームレンズ。
１．９６＜ｆ３／ｆ３１＜５．００
但し、
ｆ３ ：前記第３レンズ群の焦点距離
ｆ３１：前記前群の焦点距離 The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
1.96 <f3 / f31 <5.00
However,
f3: focal length of the third lens group f31: focal length of the front group 以下の条件式を満足することを特徴とする請求項１または２に記載のズームレンズ。
−４．００ ＜ｆ３／ｆ３２＜−１．２０
但し、
ｆ３ ：前記第３レンズ群の焦点距離
ｆ３２：前記後群の焦点距離 The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
−4.00 <f3 / f32 <−1.20
However,
f3: focal length of the third lens group f32: focal length of the rear group 以下の条件式を満足することを特徴とする請求項１から３のいずれか一項に記載のズームレンズ。
−１．００ ＜ｆ３１／ｆ３２＜−０．６０
但し、
ｆ３１：前記前群の焦点距離
ｆ３２：前記後群の焦点距離 The zoom lens according to any one of claims 1 to 3, wherein the following conditional expression is satisfied.
−1.00 <f31 / f32 <−0.60
However,
f31: Focal length of the front group f32: Focal length of the rear group 以下の条件式を満足することを特徴とする請求項１から４のいずれか一項に記載のズームレンズ。
０．２５＜ｆ４／ｆｔ ＜ ０．８０
但し、
ｆ４ ：前記第４レンズ群の焦点距離
ｆｔ ：望遠端状態における前記ズームレンズの焦点距離 The zoom lens according to any one of claims 1 to 4, wherein the following conditional expression is satisfied.
0.25 <f4 / ft <0.80
However,
f4: focal length of the fourth lens group ft: focal length of the zoom lens in the telephoto end state 以下の条件式を満足することを特徴とする請求項１から５のいずれか一項に記載のズームレンズ。
１．００ ＜ｆ３／ｆ４＜５．００
但し、
ｆ３ ：前記第３レンズ群の焦点距離
ｆ４ ：前記第４レンズ群の焦点距離 The zoom lens according to claim 1, wherein the following conditional expression is satisfied.
1.00 <f3 / f4 <5.00
However,
f3: focal length of the third lens group f4: focal length of the fourth lens group 前記後群中の最も物体側のレンズ面が非球面であることを特徴とする請求項１から６のいずれか一項に記載のズームレンズ。   The zoom lens according to claim 1, wherein a lens surface closest to the object side in the rear group is an aspherical surface. 前記第４レンズ群中に少なくとも一つの非球面を有していることを特徴とする請求項１から７のいずれか一項に記載のズームレンズ。   The zoom lens according to claim 1, wherein the fourth lens group has at least one aspheric surface. 広角端状態から望遠端状態への変倍に際して、前記第３レンズ群と前記第４レンズ群との間隔が減少することを特徴とする請求項１から８のいずれか一項に記載のズームレンズ。   9. The zoom lens according to claim 1, wherein an interval between the third lens group and the fourth lens group is reduced upon zooming from the wide-angle end state to the telephoto end state. . 合焦の際に、前記第２レンズ群を光軸方向へ移動させることを特徴とする請求項１から９のいずれか一項に記載のズームレンズ。   10. The zoom lens according to claim 1, wherein the second lens group is moved in the optical axis direction during focusing. 11. 前記第３レンズ群の物体側近傍には、開口絞りが備えられていることを特徴とする請求項１から１０のいずれか一項に記載のズームレンズ。11. The zoom lens according to claim 1, wherein an aperture stop is provided in the vicinity of the object side of the third lens group. 11. 前記開口絞りは、広角端状態から望遠端状態への変倍に際して、前記第３レンズ群と一体的に移動することを特徴とする請求項１１に記載のズームレンズ。12. The zoom lens according to claim 11, wherein the aperture stop moves integrally with the third lens group upon zooming from the wide-angle end state to the telephoto end state. 広角端状態から望遠端状態への変倍に際して、前記第１レンズ群と前記第３レンズ群と前記第４レンズ群とが物体側へ移動することを特徴とする請求項１から１２のいずれか一項に記載のズームレンズ。13. The zoom lens according to claim 1, wherein the first lens group, the third lens group, and the fourth lens group move toward the object side during zooming from the wide-angle end state to the telephoto end state. The zoom lens according to one item. 請求項１から請求項１３のいずれか一項に記載のズームレンズを搭載したことを特徴とする撮像装置。 An imaging apparatus comprising the zoom lens according to any one of claims 1 to 13 . 物体側から順に、正の屈折力を有する第１レンズ群と、負の屈折力を有する第２レンズ群と、正の屈折力を有する第３レンズ群と、正の屈折力を有する第４レンズ群とを有し、
広角端状態から望遠端状態への変倍に際して、前記第１レンズ群と前記第２レンズ群との間隔が増大し、前記第２レンズ群と前記第３レンズ群との間隔が減少し、前記第３レンズ群と前記第４レンズ群との間隔が変化し、
前記第３レンズ群は、物体側から順に、正の屈折力を有する前群と、負の屈折力を有する後群とからなり、以下の条件式を満足するズームレンズの防振方法であって、
前記後群を光軸と略直交する方向へ移動させることによって手ぶれ発生時の像面補正を行うことを特徴とするズームレンズの防振方法。
−０．２７５＜ｆ２／ｆ３＜−０．１００
但し、
ｆ２：前記第２レンズ群の焦点距離
ｆ３：前記第３レンズ群の焦点距離 In order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens having a positive refractive power And having a group
Upon zooming from the wide-angle end state to the telephoto end state, the distance between the first lens group and the second lens group increases, the distance between the second lens group and the third lens group decreases, The distance between the third lens group and the fourth lens group changes,
The third lens group includes, in order from the object side, a front lens group having a positive refractive power and a rear lens group having a negative refractive power, and is a vibration stabilizing method for a zoom lens that satisfies the following conditional expression: ,
An image stabilization method for a zoom lens, wherein image plane correction is performed when camera shake occurs by moving the rear group in a direction substantially orthogonal to the optical axis.
−0.275 <f2 / f3 <−0.100
However,
f2: focal length of the second lens group f3: focal length of the third lens group 物体側から順に、正の屈折力を有する第１レンズ群と、負の屈折力を有する第２レンズ群と、正の屈折力を有する第３レンズ群と、正の屈折力を有する第４レンズ群とを有し、
前記第３レンズ群は、物体側から順に、正の屈折力を有する前群と、負の屈折力を有する後群とからなり、
前記後群のみを光軸と略直交する方向へ移動させることによって手ぶれ発生時の像面補正を行い、以下の条件式を満足するズームレンズの変倍方法であって、
広角端状態から望遠端状態への変倍に際して、前記第１レンズ群と前記第２レンズ群との間隔が増大し、前記第２レンズ群と前記第３レンズ群との間隔が減少し、前記第３レンズ群と前記第４レンズ群との間隔が変化することを特徴とするズームレンズの変倍方法。
−０．２７５＜ｆ２／ｆ３＜−０．１００
但し、
ｆ２：前記第２レンズ群の焦点距離
ｆ３：前記第３レンズ群の焦点距離 In order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens having a positive refractive power And having a group
The third lens group includes, in order from the object side, a front group having a positive refractive power and a rear group having a negative refractive power,
A zoom lens zooming method that performs image plane correction at the time of occurrence of camera shake by moving only the rear group in a direction substantially orthogonal to the optical axis, and satisfies the following conditional expression:
Upon zooming from the wide-angle end state to the telephoto end state, the distance between the first lens group and the second lens group increases, the distance between the second lens group and the third lens group decreases, A zoom lens zooming method characterized in that an interval between the third lens group and the fourth lens group changes.
−0.275 <f2 / f3 <−0.100
However,
f2: focal length of the second lens group f3: focal length of the third lens group
JP2006340332A 2006-07-20 2006-12-18 Zoom lens, imaging device, zoom lens vibration isolation method, zoom lens zoom method Expired - Fee Related JP5028994B2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2006340332A JP5028994B2 (en) 2006-12-18 2006-12-18 Zoom lens, imaging device, zoom lens vibration isolation method, zoom lens zoom method
DE602007002449T DE602007002449D1 (en) 2006-07-20 2007-07-17 Vibration-resistant telephoto zoom lens with four lens groups
EP07252829A EP1881357B1 (en) 2006-07-20 2007-07-17 Vibration-proof telephoto zoom lens having four lens groups
EP09009550.6A EP2128676B1 (en) 2006-07-20 2007-07-17 Vibration-proof telephoto zoom lens having four lens groups
AT07252829T ATE443275T1 (en) 2006-07-20 2007-07-17 VIBRATION-RESISTANT TELEZOOMO LENS WITH FOUR LENS GROUPS
US11/779,830 US7492524B2 (en) 2006-07-20 2007-07-18 Zoom lens system, imaging apparatus, method for vibration reduction, and method for varying focal length
CN2011101081924A CN102176084B (en) 2006-07-20 2007-07-20 Zoom lens system, imaging apparatus, method for vibration reduction, and method for varying focal length
CN2007101373150A CN101109843B (en) 2006-07-20 2007-07-20 Zoom lens system, imaging apparatus, method for vibration reduction, and method for varying focal length

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006340332A JP5028994B2 (en) 2006-12-18 2006-12-18 Zoom lens, imaging device, zoom lens vibration isolation method, zoom lens zoom method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2008223831A Division JP4305566B2 (en) 2008-09-01 2008-09-01 Zoom lens, imaging device

Publications (3)

Publication Number Publication Date
JP2008152049A JP2008152049A (en) 2008-07-03
JP2008152049A5 true JP2008152049A5 (en) 2010-04-08
JP5028994B2 JP5028994B2 (en) 2012-09-19

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5333896B2 (en) * 2008-07-09 2013-11-06 株式会社ニコン Zoom lens, optical apparatus having the same, and vibration isolation method
JP5201461B2 (en) * 2008-07-09 2013-06-05 株式会社ニコン Zoom lens, optical apparatus having the same, and zooming method
CN102089699B (en) * 2008-07-09 2014-02-05 株式会社尼康 Zoom lens, optical device having same, and zoom lens manufacturing method
JP5201460B2 (en) * 2008-07-09 2013-06-05 株式会社ニコン Zoom lens, optical apparatus having the same, and zooming method
JP5266948B2 (en) 2008-08-08 2013-08-21 株式会社タムロン Inner focus zoom lens barrel
JP2013044795A (en) * 2011-08-22 2013-03-04 Tamron Co Ltd Large-diameter zoom lens

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10232420A (en) * 1997-02-20 1998-09-02 Matsushita Electric Ind Co Ltd Zoom lens
JP2001116996A (en) * 1999-10-15 2001-04-27 Matsushita Electric Ind Co Ltd Zoom lens and video camera using same
JP4391639B2 (en) * 1999-10-18 2009-12-24 株式会社シグマ High magnification zoom lens
JP4101992B2 (en) * 1999-11-24 2008-06-18 オリンパス株式会社 Compact high-magnification wide-angle zoom lens
JP2001337272A (en) * 2000-05-26 2001-12-07 Matsushita Electric Ind Co Ltd Zoom lens incorporated with camera shake correcting function and video camera using the same
JP4053361B2 (en) * 2002-07-04 2008-02-27 ペンタックス株式会社 Zoom lens system
JPWO2004025348A1 (en) * 2002-09-10 2006-01-12 松下電器産業株式会社 Zoom lens with image stabilization function
JP2005181556A (en) * 2003-12-18 2005-07-07 Sigma Corp Large diameter zoom lens
JP4679835B2 (en) * 2004-05-20 2011-05-11 株式会社シグマ High magnification zoom lens
JP4806915B2 (en) * 2004-10-01 2011-11-02 株式会社ニコン Zoom lens with anti-vibration function

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