JPS6217202B2 - - Google Patents

Info

Publication number
JPS6217202B2
JPS6217202B2 JP54060040A JP6004079A JPS6217202B2 JP S6217202 B2 JPS6217202 B2 JP S6217202B2 JP 54060040 A JP54060040 A JP 54060040A JP 6004079 A JP6004079 A JP 6004079A JP S6217202 B2 JPS6217202 B2 JP S6217202B2
Authority
JP
Japan
Prior art keywords
group
lens
positive
negative
power
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
JP54060040A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55156912A (en
Inventor
Ryota Ogawa
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 JP6004079A priority Critical patent/JPS55156912A/ja
Priority to GB8015655A priority patent/GB2051400B/en
Priority to US06/149,410 priority patent/US4348082A/en
Priority to DE3018481A priority patent/DE3018481C2/de
Publication of JPS55156912A publication Critical patent/JPS55156912A/ja
Publication of JPS6217202B2 publication Critical patent/JPS6217202B2/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
    • G02B15/143—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 three groups only
    • G02B15/1431—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 three groups only the first group being positive
    • G02B15/143105—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 three groups only the first group being positive arranged +-+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP6004079A 1979-05-16 1979-05-16 High variable power zoom lens including wide angle Granted JPS55156912A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6004079A JPS55156912A (en) 1979-05-16 1979-05-16 High variable power zoom lens including wide angle
GB8015655A GB2051400B (en) 1979-05-16 1980-05-12 Nd telephoto focal lengths zoom lens system whose zoom range covers both wide-angle a
US06/149,410 US4348082A (en) 1979-05-16 1980-05-13 Zoom lens having high zoom ratio including wide angle range
DE3018481A DE3018481C2 (de) 1979-05-16 1980-05-14 Varioobjektiv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6004079A JPS55156912A (en) 1979-05-16 1979-05-16 High variable power zoom lens including wide angle

Publications (2)

Publication Number Publication Date
JPS55156912A JPS55156912A (en) 1980-12-06
JPS6217202B2 true JPS6217202B2 (en, 2012) 1987-04-16

Family

ID=13130556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6004079A Granted JPS55156912A (en) 1979-05-16 1979-05-16 High variable power zoom lens including wide angle

Country Status (4)

Country Link
US (1) US4348082A (en, 2012)
JP (1) JPS55156912A (en, 2012)
DE (1) DE3018481C2 (en, 2012)
GB (1) GB2051400B (en, 2012)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172310A (en) * 1981-04-17 1982-10-23 Canon Inc Zoom lens
JPS57186707A (en) * 1981-05-13 1982-11-17 Canon Inc Telephoto zoom lens
JPS57192917A (en) * 1981-05-25 1982-11-27 Konishiroku Photo Ind Co Ltd Compact zoom lens
JPS5878114A (ja) * 1981-11-04 1983-05-11 Nippon Kogaku Kk <Nikon> 広画角を含むズ−ムレンズ
JPS5888717A (ja) * 1981-11-24 1983-05-26 Olympus Optical Co Ltd ズ−ムレンズ
JPS5937518A (ja) * 1982-08-25 1984-03-01 Asahi Optical Co Ltd 広角を包括する高変倍比ズ−ムレンズ
JPS5952213A (ja) * 1982-09-18 1984-03-26 Canon Inc 可動絞りを有するズ−ムレンズ
JPS60225110A (ja) * 1984-04-23 1985-11-09 Sigma:Kk 望遠ズ−ムレンズ
US4836662A (en) * 1985-04-19 1989-06-06 Olympus Optical Co., Ltd. Telephoto zoom lens system
JPH071335B2 (ja) * 1985-05-31 1995-01-11 オリンパス光学工業株式会社 望遠ズ−ムレンズ
JPS61284721A (ja) * 1985-06-12 1986-12-15 Tokinaa Kogaku Kk 望遠ズ−ムレンズ
US4917482A (en) * 1987-12-29 1990-04-17 Asahi Kogaku Kogyo Kabushiki Kaisha Compact zoom lens system capable of high zoom ratio and having coverage of a wide visual field
US4978204A (en) * 1988-09-08 1990-12-18 Asahi Kogaku Kogyo Kabushik Kaisha High zoom-ratio zoom lens system for use in a compact camera
DE3943741C2 (de) * 1988-09-08 1996-02-22 Asahi Optical Co Ltd Varioobjektiv für eine Kamera
GB2230354B (en) * 1989-03-31 1993-09-15 Asahi Optical Co Ltd Zoom lens assembly
JPH0373907A (ja) * 1989-08-15 1991-03-28 Olympus Optical Co Ltd ズームレンズ
JP2756350B2 (ja) * 1990-06-22 1998-05-25 キヤノン株式会社 投影ズームレンズ
GB9226806D0 (en) * 1991-12-25 1993-02-17 Asahi Optical Co Ltd Zoom lens system
JP3394624B2 (ja) * 1995-02-17 2003-04-07 オリンパス光学工業株式会社 ズームレンズ
JP2000347102A (ja) * 1999-06-04 2000-12-15 Konica Corp ズームレンズ
DE19943015A1 (de) * 1999-09-09 2001-03-15 Zeiss Carl Jena Gmbh Varioobjektiv
JP3569473B2 (ja) 1999-12-27 2004-09-22 ペンタックス株式会社 ズームレンズ系
US9201219B2 (en) * 2012-02-28 2015-12-01 Ricoh Imaging Company, Ltd. Close-distance correcting lens system
TWI507727B (zh) 2013-04-30 2015-11-11 Young Optics Inc 變焦鏡頭
JP2025512629A (ja) * 2023-03-16 2025-04-22 北京小米移動軟件有限公司 光学系、及び撮像装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549242A (en) * 1966-10-27 1970-12-22 Nippon Kogaku Kk Zooming lens of extremely high zooming ratio
AT333051B (de) * 1972-10-16 1976-11-10 Eumig Pankratisches objektiv
US4062621A (en) * 1975-10-28 1977-12-13 Bell & Howell Company Large aperture extended range zoom lens
US4298251A (en) * 1976-11-24 1981-11-03 Bell & Howell Company Dual macro zoom optical system
JPS5832684B2 (ja) * 1977-07-30 1983-07-14 旭光学工業株式会社 高変倍率を有する広角ズ−ムレンズ系

Also Published As

Publication number Publication date
US4348082A (en) 1982-09-07
DE3018481C2 (de) 1985-03-14
GB2051400B (en) 1983-08-24
GB2051400A (en) 1981-01-14
DE3018481A1 (de) 1980-11-20
JPS55156912A (en) 1980-12-06

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