DE69022493T3 - Zoomobjektiv. - Google Patents

Zoomobjektiv.

Info

Publication number
DE69022493T3
DE69022493T3 DE69022493T DE69022493T DE69022493T3 DE 69022493 T3 DE69022493 T3 DE 69022493T3 DE 69022493 T DE69022493 T DE 69022493T DE 69022493 T DE69022493 T DE 69022493T DE 69022493 T3 DE69022493 T3 DE 69022493T3
Authority
DE
Germany
Prior art keywords
zoom lens
zoom
lens
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
DE69022493T
Other languages
English (en)
Other versions
DE69022493D1 (de
DE69022493T2 (de
Inventor
Shusuke Ono
Keizo Ishiguro
Yasuo Nakajima
Hisayuki Ii
Rieko Hiramoto
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26488627&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69022493(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP1163058A external-priority patent/JPH07111503B2/ja
Priority claimed from JP1169295A external-priority patent/JP2502754B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69022493D1 publication Critical patent/DE69022493D1/de
Publication of DE69022493T2 publication Critical patent/DE69022493T2/de
Application granted granted Critical
Publication of DE69022493T3 publication Critical patent/DE69022493T3/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
    • 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
    • G02B15/144113—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 arranged +-++

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE69022493T 1989-06-26 1990-06-22 Zoomobjektiv. Expired - Fee Related DE69022493T3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1163058A JPH07111503B2 (ja) 1989-06-26 1989-06-26 ズームレンズ
JP1169295A JP2502754B2 (ja) 1989-06-29 1989-06-29 非球面ズ―ムレンズ

Publications (3)

Publication Number Publication Date
DE69022493D1 DE69022493D1 (de) 1995-10-26
DE69022493T2 DE69022493T2 (de) 1996-05-09
DE69022493T3 true DE69022493T3 (de) 1999-06-02

Family

ID=26488627

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022493T Expired - Fee Related DE69022493T3 (de) 1989-06-26 1990-06-22 Zoomobjektiv.

Country Status (3)

Country Link
US (1) US5100223A (de)
EP (1) EP0405856B2 (de)
DE (1) DE69022493T3 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202992A (en) * 1990-04-27 1993-04-13 Konica Corporation Zoom lens apparatus
DE69223268T2 (de) * 1991-03-29 1998-04-16 Canon Kk Zoomlinse mit Fokussierung durch die hinteren Linsengruppen
JP3033274B2 (ja) * 1991-09-12 2000-04-17 松下電器産業株式会社 非球面ズームレンズとそれを用いたビデオカメラ
JP3033276B2 (ja) * 1991-09-18 2000-04-17 松下電器産業株式会社 広角非球面ズームレンズ
US5359457A (en) * 1991-10-03 1994-10-25 Minolta Camera Co., Ltd. Wide-angle zoom lens system
US5565919A (en) * 1992-03-12 1996-10-15 Hitachi, Ltd. Video camera/VTR and camera station with opto-electronic link between camera/VTR and camera station
JP2607773Y2 (ja) * 1992-03-24 2002-07-08 富士写真光機株式会社 光学系
EP0566073B1 (de) * 1992-04-17 1996-12-18 Matsushita Electric Industrial Co., Ltd. Zoomlinsenanordnung
JPH0634882A (ja) * 1992-07-22 1994-02-10 Sony Corp ズームレンズ
US5583698A (en) * 1993-06-07 1996-12-10 Matsushita Electric Industrial Co., Ltd. Aspherical zoom lens
JPH07209582A (ja) * 1994-01-18 1995-08-11 Konica Corp プラスチックレンズを用いたズームレンズ
US6222681B1 (en) 1996-08-30 2001-04-24 Minolta, Co., Ltd. Zoom lens system
US6101043A (en) * 1998-02-26 2000-08-08 Minolta Co., Ltd. Zoom lens system
JP3391342B2 (ja) 1999-10-29 2003-03-31 ミノルタ株式会社 撮像レンズ装置
JP2003315676A (ja) * 2002-04-19 2003-11-06 Pentax Corp ズームレンズ系
US6853496B2 (en) * 2002-08-13 2005-02-08 Pentax Corporation Zoom lens system
CN106199932B (zh) * 2016-08-29 2019-11-26 中国科学院长春光学精密机械与物理研究所 一种变焦镜头

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53107347A (en) * 1977-03-01 1978-09-19 Canon Inc Zoom lens
JPS592884B2 (ja) * 1979-07-28 1984-01-21 旭光学工業株式会社 ズ−ムレンズのフオ−カス方式
JPS57172310A (en) * 1981-04-17 1982-10-23 Canon Inc Zoom lens
US4653872A (en) * 1981-04-22 1987-03-31 Nippon Kogaku K. K. Athermalized zoom lens system
JPH0668574B2 (ja) * 1984-06-27 1994-08-31 オリンパス光学工業株式会社 大口径変倍レンズ系
JP2538526B2 (ja) * 1986-03-17 1996-09-25 キヤノン株式会社 ズ−ムレンズ
JPS6329719A (ja) * 1986-07-24 1988-02-08 Olympus Optical Co Ltd ズ−ムレンズ
JP2737838B2 (ja) * 1986-11-13 1998-04-08 オリンパス光学工業株式会社 変倍レンズ系
JPH0253017A (ja) * 1988-08-18 1990-02-22 Matsushita Electric Ind Co Ltd 非球面ズームレンズ

Also Published As

Publication number Publication date
DE69022493D1 (de) 1995-10-26
EP0405856B1 (de) 1995-09-20
DE69022493T2 (de) 1996-05-09
EP0405856B2 (de) 1999-02-03
EP0405856A3 (en) 1991-10-09
US5100223A (en) 1992-03-31
EP0405856A2 (de) 1991-01-02

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee