DE69404197D1 - Asphärisches Weitwinkel-Zoomobjektiv - Google Patents

Asphärisches Weitwinkel-Zoomobjektiv

Info

Publication number
DE69404197D1
DE69404197D1 DE69404197T DE69404197T DE69404197D1 DE 69404197 D1 DE69404197 D1 DE 69404197D1 DE 69404197 T DE69404197 T DE 69404197T DE 69404197 T DE69404197 T DE 69404197T DE 69404197 D1 DE69404197 D1 DE 69404197D1
Authority
DE
Germany
Prior art keywords
zoom lens
angle zoom
aspheric
wide
aspheric wide
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.)
Expired - Fee Related
Application number
DE69404197T
Other languages
English (en)
Other versions
DE69404197T2 (de
Inventor
Shusuke Ono
Hiroaki Okayama
Yasuo Nakajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
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
Priority claimed from JP8615193A external-priority patent/JPH06300969A/ja
Priority claimed from JP26051293A external-priority patent/JPH07113956A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69404197D1 publication Critical patent/DE69404197D1/de
Application granted granted Critical
Publication of DE69404197T2 publication Critical patent/DE69404197T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • 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
    • G02B15/142—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 two groups only
    • G02B15/1425—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 two groups only the first group being negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE69404197T 1993-04-13 1994-04-13 Asphärisches Weitwinkel-Zoomobjektiv Expired - Fee Related DE69404197T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8615193A JPH06300969A (ja) 1993-04-13 1993-04-13 広角非球面ズームレンズ及びビデオカメラ
JP26051293A JPH07113956A (ja) 1993-10-19 1993-10-19 広角非球面ズームレンズ

Publications (2)

Publication Number Publication Date
DE69404197D1 true DE69404197D1 (de) 1997-08-21
DE69404197T2 DE69404197T2 (de) 1997-11-06

Family

ID=26427308

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69404197T Expired - Fee Related DE69404197T2 (de) 1993-04-13 1994-04-13 Asphärisches Weitwinkel-Zoomobjektiv

Country Status (3)

Country Link
US (1) US5552937A (de)
EP (1) EP0620467B1 (de)
DE (1) DE69404197T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5877313A (en) 1995-05-17 1999-03-02 Bristol-Myers Squibb Benzo-fused azepinone and piperidinone compounds useful in the inhibition of ACE and NEP
US5805349A (en) * 1995-10-13 1998-09-08 Nikon Corporation Retrofocus type lens
JP3709000B2 (ja) * 1995-12-12 2005-10-19 ペンタックス株式会社 超広角ズームレンズカメラ
US5844724A (en) * 1996-12-23 1998-12-01 Nikon Corporation Wide angle zoom lens
JPH10301028A (ja) * 1997-04-30 1998-11-13 Fuji Photo Optical Co Ltd 小型２群ズームレンズ
US6377404B1 (en) 2000-01-20 2002-04-23 Eastman Kodak Company Reverse telephoto zoom lens
JP3559526B2 (ja) * 2001-01-11 2004-09-02 ペンタックス プレシジョン株式会社 可変焦点距離レンズ
US7023628B1 (en) * 2005-04-05 2006-04-04 Alex Ning Compact fisheye objective lens
TWI330720B (en) * 2007-04-14 2010-09-21 Young Optics Inc Zoom lens
TWI404971B (zh) * 2007-07-13 2013-08-11 Young Optics Inc 變焦鏡頭
JP5629090B2 (ja) * 2008-12-26 2014-11-19 富士フイルム株式会社 変倍光学系および撮像装置
TWI410673B (zh) * 2009-01-22 2013-10-01 Young Optics Inc 變焦鏡頭
JP5355474B2 (ja) * 2010-03-31 2013-11-27 キヤノン株式会社 ズームレンズおよび光学機器
US8724232B2 (en) * 2010-10-29 2014-05-13 Samsung Techwin Co., Ltd. Zoom lens and photographing apparatus including the same
JP6037221B2 (ja) * 2012-11-16 2016-12-07 株式会社リコー 広角レンズ、撮像レンズユニット、撮像装置および情報装置
CN103605201B (zh) * 2013-11-20 2016-08-17 厦门爱劳德光电有限公司 光学镜头
CN104865681A (zh) * 2014-02-25 2015-08-26 信泰光学(深圳)有限公司 广角镜头
US9726859B1 (en) * 2014-03-16 2017-08-08 Navitar Industries, Llc Optical assembly for a wide field of view camera with low TV distortion
US9316808B1 (en) 2014-03-16 2016-04-19 Hyperion Development, LLC Optical assembly for a wide field of view point action camera with a low sag aspheric lens element
JP6927815B2 (ja) 2017-09-13 2021-09-01 マクセル株式会社 撮像レンズ系及び撮像装置
CN111679415B (zh) * 2020-06-15 2022-09-16 福建福光股份有限公司 3.2-7.2mm经济款玻塑混合高清微型变焦镜头

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726667A (en) * 1984-10-19 1988-02-23 Asahi Kogaku Kogyo Kabushiki Kaisha Focusing method in optical lens system with variable focal length
JPS61240217A (ja) * 1985-04-17 1986-10-25 Asahi Optical Co Ltd コンパクトな広角ズ−ムレンズ
JPH0827430B2 (ja) * 1988-03-22 1996-03-21 株式会社ニコン ２群ズームレンズ
JP2856464B2 (ja) * 1989-08-03 1999-02-10 株式会社リコー プラスチックズームレンズ
JP2903479B2 (ja) * 1990-03-30 1999-06-07 オリンパス光学工業株式会社 ズームレンズ
GB2244819B (en) * 1990-04-17 1994-08-03 Asahi Optical Co Ltd Zoom lens system

Also Published As

Publication number Publication date
US5552937A (en) 1996-09-03
EP0620467B1 (de) 1997-07-16
EP0620467A3 (de) 1995-04-26
DE69404197T2 (de) 1997-11-06
EP0620467A2 (de) 1994-10-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee