JPS6229769B2 - - Google Patents

Info

Publication number
JPS6229769B2
JPS6229769B2 JP56208727A JP20872781A JPS6229769B2 JP S6229769 B2 JPS6229769 B2 JP S6229769B2 JP 56208727 A JP56208727 A JP 56208727A JP 20872781 A JP20872781 A JP 20872781A JP S6229769 B2 JPS6229769 B2 JP S6229769B2
Authority
JP
Japan
Prior art keywords
lens group
lens
lenses
negative
group
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
Application number
JP56208727A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58108511A (ja
Inventor
Sadao Okudaira
Shigetada Sato
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP56208727A priority Critical patent/JPS58108511A/ja
Priority to US06/418,970 priority patent/US4490017A/en
Publication of JPS58108511A publication Critical patent/JPS58108511A/ja
Publication of JPS6229769B2 publication Critical patent/JPS6229769B2/ja
Granted 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
    • G02B15/144109—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)
JP56208727A 1981-12-22 1981-12-22 ビデオカメラ用ズ−ムレンズ Granted JPS58108511A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56208727A JPS58108511A (ja) 1981-12-22 1981-12-22 ビデオカメラ用ズ−ムレンズ
US06/418,970 US4490017A (en) 1981-12-22 1982-09-16 High-speed zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56208727A JPS58108511A (ja) 1981-12-22 1981-12-22 ビデオカメラ用ズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS58108511A JPS58108511A (ja) 1983-06-28
JPS6229769B2 true JPS6229769B2 (en, 2012) 1987-06-29

Family

ID=16561076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56208727A Granted JPS58108511A (ja) 1981-12-22 1981-12-22 ビデオカメラ用ズ−ムレンズ

Country Status (2)

Country Link
US (1) US4490017A (en, 2012)
JP (1) JPS58108511A (en, 2012)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191218A (ja) * 1984-03-12 1985-09-28 Canon Inc ズ−ムレンズ
JPS60247612A (ja) * 1984-05-24 1985-12-07 Konishiroku Photo Ind Co Ltd ズ−ムレンズ
JPS6291908A (ja) * 1985-10-18 1987-04-27 Konishiroku Photo Ind Co Ltd ズ−ム・レンズ
US5039211A (en) * 1988-07-28 1991-08-13 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens capable of image blur compensation
JP3088112B2 (ja) * 1990-10-12 2000-09-18 旭光学工業株式会社 ズームレンズ
JP3538265B2 (ja) * 1995-08-25 2004-06-14 ペンタックス株式会社 高変倍ズームレンズ系
JP3360779B2 (ja) * 1995-08-25 2002-12-24 ペンタックス株式会社 高変倍ズームレンズ系
JPH1054938A (ja) * 1996-08-12 1998-02-24 Asahi Optical Co Ltd 大口径非球面ズームレンズ系
JP3723643B2 (ja) * 1996-08-12 2005-12-07 ペンタックス株式会社 高変倍ズームレンズ系

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5540852B2 (en, 2012) * 1972-10-09 1980-10-21
JPS6034732B2 (ja) * 1975-11-05 1985-08-10 キヤノン株式会社 至近距離の短いズームレンズ
JPS5431944A (en) * 1977-08-15 1979-03-09 Matsushita Electric Works Ltd Door with ornamental plate
JPS54155834A (en) * 1978-05-29 1979-12-08 Bell & Howell Japan Large aperture ratio zoom lens
JPS5833533B2 (ja) * 1978-09-28 1983-07-20 チノン株式会社 ズ−ムレンズ
JPS5595922A (en) * 1979-01-12 1980-07-21 Chinon Kk Zoom lens
JPS5648607A (en) * 1979-09-27 1981-05-01 Canon Inc Wide-angle zoom lens
JPS5681810A (en) * 1979-12-07 1981-07-04 Canon Inc Zoom lens

Also Published As

Publication number Publication date
JPS58108511A (ja) 1983-06-28
US4490017A (en) 1984-12-25

Similar Documents

Publication Publication Date Title
US6088169A (en) Wide-angle zoom lens
JPH05173071A (ja) 広角ズームレンズ
JPH07111502B2 (ja) コンパクトカメラ用ズ−ムレンズ
WO2013191296A1 (ja) ズームレンズ及びそれを備えた撮像装置
JPH05188294A (ja) 逆望遠型大口径広角レンズ
US6040949A (en) Simple wide-angle zoom lens
JPH05173070A (ja) ズームレンズ
JPS6119016B2 (en, 2012)
JPH0217084B2 (en, 2012)
JPS6119012B2 (en, 2012)
JPS6229769B2 (en, 2012)
JPS6119967B2 (en, 2012)
JP2650253B2 (ja) ズームレンズ
JP3085823B2 (ja) 非球面ズームレンズとそれを用いたビデオカメラ
JPH0814654B2 (ja) 小型のズ−ムレンズ
JPH05119260A (ja) 高変倍ズームレンズ
JPS6119015B2 (en, 2012)
JPH06130330A (ja) 防振機能を備えたズームレンズ
JPS6229768B2 (en, 2012)
JP2538777B2 (ja) コンパクトズ−ムレンズ
JPH0727979A (ja) ズームレンズ
JPH08190052A (ja) 近距離合焦可能なズームレンズ
JP3088112B2 (ja) ズームレンズ
JP5058634B2 (ja) ズームレンズ及びそれを有する撮像装置
JP4379957B2 (ja) リアフォーカス式ズームレンズ及びそれを用いた光学機器