JPH0514247B2 - - Google Patents

Info

Publication number
JPH0514247B2
JPH0514247B2 JP57011090A JP1109082A JPH0514247B2 JP H0514247 B2 JPH0514247 B2 JP H0514247B2 JP 57011090 A JP57011090 A JP 57011090A JP 1109082 A JP1109082 A JP 1109082A JP H0514247 B2 JPH0514247 B2 JP H0514247B2
Authority
JP
Japan
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 - Lifetime
Application number
JP57011090A
Other versions
JPS58127908A (en
Inventor
Hisayuki Masumoto
Shuji Ogino
Original Assignee
Minolta Camera Kk
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 Minolta Camera Kk filed Critical Minolta Camera Kk
Priority to JP57011090A priority Critical patent/JPH0514247B2/ja
Priority claimed from US06/366,673 external-priority patent/US4494828A/en
Publication of JPS58127908A publication Critical patent/JPS58127908A/en
Publication of JPH0514247B2 publication Critical patent/JPH0514247B2/ja
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B15/00Optical objectives with means for varying the magnification
    • G02B15/14Optical 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
    • G02B15/16Optical 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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
    • G02B15/163Optical 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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
    • G02B15/167Optical 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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
    • G02B15/173Optical 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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +-+
JP57011090A 1982-01-26 1982-01-26 Expired - Lifetime JPH0514247B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57011090A JPH0514247B2 (en) 1982-01-26 1982-01-26

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57011090A JPH0514247B2 (en) 1982-01-26 1982-01-26
US06/366,673 US4494828A (en) 1981-04-09 1982-04-08 Zoom lens system of relatively high zoom ratio ranging to wide angle photography

Publications (2)

Publication Number Publication Date
JPS58127908A JPS58127908A (en) 1983-07-30
JPH0514247B2 true JPH0514247B2 (en) 1993-02-24

Family

ID=11768282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57011090A Expired - Lifetime JPH0514247B2 (en) 1982-01-26 1982-01-26

Country Status (1)

Country Link
JP (1) JPH0514247B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155653B2 (en) * 1982-03-04 1986-11-28 Canon Kk
JPH071334B2 (en) * 1985-05-15 1995-01-11 オリンパス光学工業株式会社 'S - zoom lens
JPH073506B2 (en) * 1985-08-17 1995-01-18 キヤノン株式会社 'S - zoom lens
US5568321A (en) * 1990-11-16 1996-10-22 Canon Kabushiki Kaisha Zoom lens
US5694253A (en) * 1995-02-02 1997-12-02 Nikon Corporation High zoom ratio zoom lens
JP4994796B2 (en) * 2006-11-14 2012-08-08 キヤノン株式会社 Zoom lens and imaging apparatus having the same
JP5920926B2 (en) * 2012-12-26 2016-05-18 株式会社タムロン Zoom lens
JP2017111359A (en) * 2015-12-18 2017-06-22 株式会社タムロン Optical system and imaging apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562419A (en) * 1978-09-11 1980-05-10 Optigon Res & Dev Corp Zoom lens
JPS56114920A (en) * 1980-01-31 1981-09-09 Optigon Res & Dev Corp Lens of variable equivalent focal length
JPS57161804A (en) * 1981-03-31 1982-10-05 Tokinaa Kogaku Kk Zoom lens system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562419A (en) * 1978-09-11 1980-05-10 Optigon Res & Dev Corp Zoom lens
JPS56114920A (en) * 1980-01-31 1981-09-09 Optigon Res & Dev Corp Lens of variable equivalent focal length
JPS57161804A (en) * 1981-03-31 1982-10-05 Tokinaa Kogaku Kk Zoom lens system

Also Published As

Publication number Publication date
JPS58127908A (en) 1983-07-30

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