JP2009063715A5 - - Google Patents

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Publication number
JP2009063715A5
JP2009063715A5 JP2007230012A JP2007230012A JP2009063715A5 JP 2009063715 A5 JP2009063715 A5 JP 2009063715A5 JP 2007230012 A JP2007230012 A JP 2007230012A JP 2007230012 A JP2007230012 A JP 2007230012A JP 2009063715 A5 JP2009063715 A5 JP 2009063715A5
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JP
Japan
Prior art keywords
lens
lens group
positive
refractive power
group includes
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JP2007230012A
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Japanese (ja)
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JP2009063715A (en
JP5004725B2 (en
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Priority to JP2007230012A priority Critical patent/JP5004725B2/en
Priority claimed from JP2007230012A external-priority patent/JP5004725B2/en
Publication of JP2009063715A publication Critical patent/JP2009063715A/en
Publication of JP2009063715A5 publication Critical patent/JP2009063715A5/ja
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Publication of JP5004725B2 publication Critical patent/JP5004725B2/en
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Claims (7)

物体側より像側へ順に、正の屈折力の第１レンズ群、負の屈折力の第２レンズ群、正の屈折力の第３レンズ群、負の屈折力の第４レンズ群より構成され、前記第４レンズ群は、物体側より像側へ順に、負の屈折力の第４ａレンズ群、正の屈折力の第４ｂレンズ群より構成され、前記第４ａレンズ群を光軸に対して垂直方向の成分を持つ方向に移動させることによって結像位置を変化させることができ、無限遠物体から近距離物体へのフォーカシングに際して、前記第２レンズ群は像側へ移動し、前記第３レンズ群は物体側へ移動し、前記第２レンズ群の焦点距離をｆ２、前記第４ａレンズ群と前記第４ｂレンズ群の焦点距離を各々ｆ４ａ、ｆ４ｂ、全系の焦点距離をｆとするとき、
１．０＜｜ｆ２／ｆ｜＜５．０
０．１＜｜ｆ４ａ／ｆ４ｂ｜＜０．３
なる条件式を満足することを特徴とする撮影レンズ。 In order from the object side to the image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power and a fourth lens unit having a negative refractive power the fourth lens group includes, in order from the object side to the image side, the 4a lens unit having a negative refractive power, is composed of the 4b lens unit having positive refractive power, the first 4a lens group with respect to the optical axis it is possible to change the imaging position by moving in a direction having a vertical component, upon focusing from infinity to a close object, the second lens unit moves toward the image side, the third lens group moves toward the object side, the focal length of the second lens group f2, the first 4a lens group and the second 4b lens focal length respectively f4a, f4b, when the focal length of the entire system that is f,
1.0 <| f2 / f | <5.0
0.1 <| f4a / f4b | <0.3
A photographic lens characterized by satisfying the following conditional expression: 前記第４ａレンズ群は、物体側より像側へ順に、負レンズと正レンズの接合レンズより構成されていることを特徴とする請求項１の撮影レンズ。 Wherein the 4a lens group includes, in order from the object side to the image side, of the taking lens according to claim 1, characterized by being composed of a cemented lens including a negative lens and a positive lens. 前記第１レンズ群の焦点距離をｆ１、前記第３レンズ群の焦点距離をｆ３とするとき、
０．６ ＜ ｆ１／ｆ ＜２．０
０．６ ＜ ｆ３／ｆ ＜１．０
なる条件式を満足することを特徴とする請求項１又は２の撮影レンズ。 When the focal length of the first lens group is f1, and the focal length of the third lens group is f3 ,
0.6 <f1 / f <2.0
0.6 <f3 / f <1.0
The photographing lens according to claim 1 or 2, wherein the following conditional expression is satisfied. 前記第４ａレンズ群は、物体側から像側へ順に、両凹形状の負レンズと正レンズとの接合レンズより構成され、前記第４ｂレンズ群は２つの正レンズより構成されていることを特徴とする請求項１、２又は３の撮影レンズ。 The 4a lens group includes, in order from the object side to the image side, a cemented lens of a biconcave negative lens and a positive lens, and the 4b lens group includes two positive lenses. The photographic lens according to claim 1, 2, or 3. 前記第４ａレンズ群は、物体側から像側へ順に、両凹形状の負レンズと正レンズとの接合レンズより構成され、前記第４ｂレンズ群は負レンズと正レンズより構成されていることを特徴とする請求項１、２又は３の撮影レンズ。 The 4a lens group includes, in order from the object side to the image side, a cemented lens of a biconcave negative lens and a positive lens, and the 4b lens group includes a negative lens and a positive lens. The photographic lens according to claim 1, 2 or 3. 固体撮像素子に像を形成することを特徴とする請求項１乃至５のいずれか１項に記載の撮影レンズ。 The photographic lens according to claim 1, wherein an image is formed on a solid-state imaging device. 請求項１から６のいずれか１項に記載の撮影レンズと該撮影レンズによって形成される像を受光する固体撮像素子とを有することを特徴とする撮像装置。 Imaging apparatus characterized by having a solid-state imaging device for receiving an image formed by the taking lens and the imaging lens according to any one of claims 1 to 6.
JP2007230012A 2007-09-05 2007-09-05 Imaging lens and imaging apparatus having the same Active JP5004725B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007230012A JP5004725B2 (en) 2007-09-05 2007-09-05 Imaging lens and imaging apparatus having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007230012A JP5004725B2 (en) 2007-09-05 2007-09-05 Imaging lens and imaging apparatus having the same

Publications (3)

Publication Number Publication Date
JP2009063715A JP2009063715A (en) 2009-03-26
JP2009063715A5 true JP2009063715A5 (en) 2010-10-14
JP5004725B2 JP5004725B2 (en) 2012-08-22

Family

ID=40558354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007230012A Active JP5004725B2 (en) 2007-09-05 2007-09-05 Imaging lens and imaging apparatus having the same

Country Status (1)

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JP (1) JP5004725B2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5542375B2 (en) * 2009-06-30 2014-07-09 株式会社シグマ Inner focus type macro lens with anti-vibration function
JP5542374B2 (en) * 2009-06-30 2014-07-09 株式会社シグマ Inner focus type macro lens with anti-vibration function
JP5544845B2 (en) * 2009-11-27 2014-07-09 株式会社ニコン OPTICAL SYSTEM, IMAGING DEVICE, AND OPTICAL SYSTEM MANUFACTURING METHOD
US9007703B2 (en) 2010-01-20 2015-04-14 Nikon Corporation Imaging lens, optical apparatus equipped therewith, and method for manufacturing imaging lens
JP5652057B2 (en) * 2010-08-30 2015-01-14 リコーイメージング株式会社 Macro lens system
JP5558281B2 (en) * 2010-09-14 2014-07-23 株式会社シグマ Inner focus type macro lens with anti-vibration function
CN111273424A (en) * 2020-01-20 2020-06-12 厦门力鼎光电股份有限公司 Camera optical lens
CN113568135A (en) * 2020-04-28 2021-10-29 新巨科技股份有限公司 Miniature lens group for close-range imaging
CN113671675B (en) * 2021-08-27 2022-10-28 西安应用光学研究所 Variable F # continuous zooming television optical system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3003081B2 (en) * 1990-08-31 2000-01-24 株式会社シグマ Inner focus macro lens
JP2001272601A (en) * 2000-03-27 2001-10-05 Canon Inc Optical system and optical equipment using the same
JP2004061680A (en) * 2002-07-26 2004-02-26 Canon Inc Macro lens
JP2006023680A (en) * 2004-07-09 2006-01-26 Canon Inc Photographic lens and imaging device having the same
JP4945890B2 (en) * 2004-09-30 2012-06-06 株式会社ニコン interchangeable lens

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