WO2003038502A1 - Objectif zoom, camera video comprenant celui-ci et appareil photo numerique - Google Patents

Objectif zoom, camera video comprenant celui-ci et appareil photo numerique Download PDF

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Publication number
WO2003038502A1
WO2003038502A1 PCT/JP2002/011170 JP0211170W WO03038502A1 WO 2003038502 A1 WO2003038502 A1 WO 2003038502A1 JP 0211170 W JP0211170 W JP 0211170W WO 03038502 A1 WO03038502 A1 WO 03038502A1
Authority
WO
WIPO (PCT)
Prior art keywords
mathematical expression
cameara
video
zoom lens
same
Prior art date
Application number
PCT/JP2002/011170
Other languages
English (en)
Japanese (ja)
Inventor
Kazutake Boku
Katsu Yamada
Keizou Ishiguro
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Publication of WO2003038502A1 publication Critical patent/WO2003038502A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only
    • G02B15/1441—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being positive

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Lens Barrels (AREA)
  • Cameras In General (AREA)
  • Blocking Light For Cameras (AREA)
  • Structure And Mechanism Of Cameras (AREA)
  • Studio Devices (AREA)

Abstract

L'invention concerne un petit objectif zoom lumineux hautes performances qui présente une variation de focale supérieure d'environ 10 et un nombre d'ouverture F supérieur ou égal à 1,8. Les conditions des expressions mathématiques 68 à 71 indiquées ci-dessous sont remplies, dans lesquelles f1 est égal à la distance focale synthétisée d'un premier groupe de lentilles (11), f2 est égal à la distance focale synthétisée d'un deuxième groupe de lentilles (12), f3 est égal à la distance focale synthétisée d'un troisième groupe de lentilles (14), f4 est égal à la distance focale synthétisée d'un quatrième groupe de lentilles (15), et fw est égal à la distance focale synthétisée du système complet à l'extrémité grand angle. [Expression mathématique 68] 5,0<f1/fw<6,0 [Expression mathématique 69] 0,95<?f2/fw?<1,05 [Expression mathématique 70] 2,5<f3/fw<3,5 [Expression mathématique 71] 2,5<f4/fw<4,0
PCT/JP2002/011170 2001-10-30 2002-10-28 Objectif zoom, camera video comprenant celui-ci et appareil photo numerique WO2003038502A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-332561 2001-10-30
JP2001332561A JP2003140044A (ja) 2001-10-30 2001-10-30 ズームレンズ、並びにそれを用いたビデオカメラ及びディジタルスチルカメラ

Publications (1)

Publication Number Publication Date
WO2003038502A1 true WO2003038502A1 (fr) 2003-05-08

Family

ID=19147957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/011170 WO2003038502A1 (fr) 2001-10-30 2002-10-28 Objectif zoom, camera video comprenant celui-ci et appareil photo numerique

Country Status (2)

Country Link
JP (1) JP2003140044A (fr)
WO (1) WO2003038502A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102053347A (zh) * 2009-11-02 2011-05-11 株式会社尼康 变焦透镜、光学设备及变焦透镜的制造方法
CN107643591A (zh) * 2017-11-01 2018-01-30 河南中光学集团有限公司 一种反衰减透雾可见光镜头及实现方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005326777A (ja) * 2004-05-17 2005-11-24 Fujinon Corp レンズ鏡胴
JP5159203B2 (ja) 2007-08-03 2013-03-06 株式会社エルモ社 ズームレンズ

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05281591A (ja) * 1992-03-31 1993-10-29 Sony Corp 撮影レンズの絞り装置
JPH08292369A (ja) * 1995-02-20 1996-11-05 Matsushita Electric Ind Co Ltd ズームレンズ及びそれを用いたビデオカメラ
JPH1152241A (ja) * 1997-08-07 1999-02-26 Matsushita Electric Ind Co Ltd ズームレンズ及びこれを用いたビデオカメラと電子スチルカメラ
JPH11237551A (ja) * 1997-12-18 1999-08-31 Matsushita Electric Ind Co Ltd ズームレンズ及びそれを用いたビデオカメラ
US5995279A (en) * 1994-11-09 1999-11-30 Canon Kabushiki Kaisha Optical element, and taking optical system and image pickup apparatus using it
EP1046940A2 (fr) * 1999-04-05 2000-10-25 Matsushita Electric Industrial Co., Ltd. Objectif à focale variable et caméra vidéo l'utilisant
JP2001117004A (ja) * 1999-10-14 2001-04-27 Matsushita Electric Ind Co Ltd ズームレンズ及びそれを用いたビデオカメラ
JP2001116996A (ja) * 1999-10-15 2001-04-27 Matsushita Electric Ind Co Ltd ズームレンズ及びそれを用いたビデオカメラ
JP2001221948A (ja) * 2000-02-10 2001-08-17 Matsushita Electric Ind Co Ltd ズームレンズ

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05281591A (ja) * 1992-03-31 1993-10-29 Sony Corp 撮影レンズの絞り装置
US5995279A (en) * 1994-11-09 1999-11-30 Canon Kabushiki Kaisha Optical element, and taking optical system and image pickup apparatus using it
JPH08292369A (ja) * 1995-02-20 1996-11-05 Matsushita Electric Ind Co Ltd ズームレンズ及びそれを用いたビデオカメラ
JPH1152241A (ja) * 1997-08-07 1999-02-26 Matsushita Electric Ind Co Ltd ズームレンズ及びこれを用いたビデオカメラと電子スチルカメラ
JPH11237551A (ja) * 1997-12-18 1999-08-31 Matsushita Electric Ind Co Ltd ズームレンズ及びそれを用いたビデオカメラ
EP1046940A2 (fr) * 1999-04-05 2000-10-25 Matsushita Electric Industrial Co., Ltd. Objectif à focale variable et caméra vidéo l'utilisant
JP2001117004A (ja) * 1999-10-14 2001-04-27 Matsushita Electric Ind Co Ltd ズームレンズ及びそれを用いたビデオカメラ
JP2001116996A (ja) * 1999-10-15 2001-04-27 Matsushita Electric Ind Co Ltd ズームレンズ及びそれを用いたビデオカメラ
JP2001221948A (ja) * 2000-02-10 2001-08-17 Matsushita Electric Ind Co Ltd ズームレンズ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102053347A (zh) * 2009-11-02 2011-05-11 株式会社尼康 变焦透镜、光学设备及变焦透镜的制造方法
EP2325681A1 (fr) * 2009-11-02 2011-05-25 Nikon Corporation Lentille de zoom, appareil optique et procédé de fabrication de lentille de zoom
US8379319B2 (en) 2009-11-02 2013-02-19 Nikon Corporation Zoom lens, optical apparatus and method for manufacturing zoom lens
CN102053347B (zh) * 2009-11-02 2015-04-22 株式会社尼康 变焦透镜、光学设备及变焦透镜的制造方法
CN107643591A (zh) * 2017-11-01 2018-01-30 河南中光学集团有限公司 一种反衰减透雾可见光镜头及实现方法
CN107643591B (zh) * 2017-11-01 2023-08-15 河南中光学集团有限公司 一种反衰减透雾可见光镜头及实现方法

Also Published As

Publication number Publication date
JP2003140044A (ja) 2003-05-14

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