JPS588482B2 - コンパクトナズ−ムレンズ - Google Patents

コンパクトナズ−ムレンズ

Info

Publication number
JPS588482B2
JPS588482B2 JP50024316A JP2431675A JPS588482B2 JP S588482 B2 JPS588482 B2 JP S588482B2 JP 50024316 A JP50024316 A JP 50024316A JP 2431675 A JP2431675 A JP 2431675A JP S588482 B2 JPS588482 B2 JP S588482B2
Authority
JP
Japan
Prior art keywords
group
lens
positive
condition
negative
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
JP50024316A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5199036A (en, 2012
Inventor
辻定彦
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP50024316A priority Critical patent/JPS588482B2/ja
Priority to US654905A priority patent/US4017161A/en
Publication of JPS5199036A publication Critical patent/JPS5199036A/ja
Publication of JPS588482B2 publication Critical patent/JPS588482B2/ja
Expired 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)
JP50024316A 1975-02-26 1975-02-26 コンパクトナズ−ムレンズ Expired JPS588482B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP50024316A JPS588482B2 (ja) 1975-02-26 1975-02-26 コンパクトナズ−ムレンズ
US654905A US4017161A (en) 1975-02-26 1976-02-03 Compact zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50024316A JPS588482B2 (ja) 1975-02-26 1975-02-26 コンパクトナズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS5199036A JPS5199036A (en, 2012) 1976-09-01
JPS588482B2 true JPS588482B2 (ja) 1983-02-16

Family

ID=12134768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50024316A Expired JPS588482B2 (ja) 1975-02-26 1975-02-26 コンパクトナズ−ムレンズ

Country Status (2)

Country Link
US (1) US4017161A (en, 2012)
JP (1) JPS588482B2 (en, 2012)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5397451A (en) * 1977-02-04 1978-08-25 Minolta Camera Co Ltd Zoom lens system
US4299454A (en) * 1978-09-11 1981-11-10 Vivitar Corporation Wide angle to long focus zoom lens
DE2936677C2 (de) * 1978-09-11 1986-10-02 Vivitar Corp., Santa Monica, Calif. Vario-Objektiv
JPS55161207A (en) * 1979-06-04 1980-12-15 Canon Inc Zoom lens of small size
FR2478332A1 (fr) * 1980-03-12 1981-09-18 Cattelani Claude Objectif a focale variable et systeme optique equipe de tels objectifs pour la realisation d'effets speciaux sur des films
JPS5782811A (en) * 1980-11-11 1982-05-24 Canon Inc Zoom lens
US4394072A (en) * 1980-12-05 1983-07-19 Vivitar Corporation Zoom lens
JPS57186707A (en) * 1981-05-13 1982-11-17 Canon Inc Telephoto zoom lens
JPS5913212A (ja) * 1982-07-14 1984-01-24 Canon Inc ズ−ムレンズ
JPS59121020A (ja) * 1982-12-28 1984-07-12 Ricoh Co Ltd ズ−ムレンズ
JPS6060617A (ja) * 1983-09-14 1985-04-08 Asahi Optical Co Ltd 望遠ズ−ムレンズ系

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286308B (de) * 1966-09-14 1969-01-02 Asahi Optical Co Ltd Objektiv veraenderbarer Brennweite
US3584935A (en) * 1968-06-03 1971-06-15 Konishiroku Photo Ind Improved wide angle zoom objective lens system
US3972591A (en) * 1972-02-01 1976-08-03 Canon Kabushiki Kaisha Greatly variable magnification zoom lens system of large aperture ratio
JPS5540852B2 (en, 2012) * 1972-10-09 1980-10-21
US3840290A (en) * 1973-08-13 1974-10-08 Us Navy Zoom lens system having four movable members

Also Published As

Publication number Publication date
US4017161A (en) 1977-04-12
JPS5199036A (en, 2012) 1976-09-01

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