JPS52146250A - High magnification high performance zoom lens - Google Patents

High magnification high performance zoom lens

Info

Publication number
JPS52146250A
JPS52146250A JP6242776A JP6242776A JPS52146250A JP S52146250 A JPS52146250 A JP S52146250A JP 6242776 A JP6242776 A JP 6242776A JP 6242776 A JP6242776 A JP 6242776A JP S52146250 A JPS52146250 A JP S52146250A
Authority
JP
Japan
Prior art keywords
zoom lens
performance zoom
high performance
magnification
high magnification
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.)
Granted
Application number
JP6242776A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5712125B2 (enExample
Inventor
Yutaka Iizuka
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.)
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical 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
Application filed by Nippon Chemical Industrial Co Ltd filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP6242776A priority Critical patent/JPS52146250A/ja
Priority to US05/801,353 priority patent/US4189213A/en
Priority to DE2724507A priority patent/DE2724507C3/de
Publication of JPS52146250A publication Critical patent/JPS52146250A/ja
Publication of JPS5712125B2 publication Critical patent/JPS5712125B2/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
    • G02B15/16—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
    • G02B15/163—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 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
    • G02B15/167—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 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
    • G02B15/173—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 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 +-+
    • 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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145121—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 five groups only the first group being positive arranged +-+-+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
JP6242776A 1976-05-31 1976-05-31 High magnification high performance zoom lens Granted JPS52146250A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6242776A JPS52146250A (en) 1976-05-31 1976-05-31 High magnification high performance zoom lens
US05/801,353 US4189213A (en) 1976-05-31 1977-05-27 Zoom lens system
DE2724507A DE2724507C3 (de) 1976-05-31 1977-05-31 Varioobjektiv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6242776A JPS52146250A (en) 1976-05-31 1976-05-31 High magnification high performance zoom lens

Publications (2)

Publication Number Publication Date
JPS52146250A true JPS52146250A (en) 1977-12-05
JPS5712125B2 JPS5712125B2 (enExample) 1982-03-09

Family

ID=13199842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6242776A Granted JPS52146250A (en) 1976-05-31 1976-05-31 High magnification high performance zoom lens

Country Status (3)

Country Link
US (1) US4189213A (enExample)
JP (1) JPS52146250A (enExample)
DE (1) DE2724507C3 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735822A (en) * 1980-08-14 1982-02-26 Canon Inc Zoom lens

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5642208A (en) * 1979-09-17 1981-04-20 Canon Inc Compact zoom lens
JPS56107211A (en) * 1980-01-31 1981-08-26 Canon Inc Zoom lens
US6101045A (en) * 1994-02-14 2000-08-08 Minolta Co., Ltd. Zoom lens system
JP3429554B2 (ja) * 1994-05-17 2003-07-22 オリンパス光学工業株式会社 変倍レンズ
US5978150A (en) * 1995-06-01 1999-11-02 Nikon Corporation Zoom lens
JP3453007B2 (ja) * 1995-06-19 2003-10-06 富士写真光機株式会社 ズームレンズ
JPH0926544A (ja) * 1995-07-10 1997-01-28 Nikon Corp 顕微鏡用中間鏡筒
US6985303B2 (en) * 2003-05-08 2006-01-10 Fujinon Corporation Rear focus zoom lens
RU2299455C2 (ru) * 2005-08-15 2007-05-20 Федеральное государственное унитарное предприятие "Научно-производственное объединение "Государственный институт прикладной оптики" (ФГУП "НПО "ГИПО") Инфракрасный объектив с плавно изменяющимся фокусным расстоянием
RU2298213C1 (ru) * 2005-10-19 2007-04-27 Государственное унитарное предприятие "Конструкторское бюро приборостроения" Объектив с переменным фокусным расстоянием
RU2299454C1 (ru) * 2005-10-31 2007-05-20 Федеральное государственное унитарное предприятие "Научно-производственное объединение "Государственный институт прикладной оптики" (ФГУП "НПО "ГИПО") Инфракрасный объектив с плавно изменяющимся фокусным расстоянием

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972591A (en) * 1972-02-01 1976-08-03 Canon Kabushiki Kaisha Greatly variable magnification zoom lens system of large aperture ratio
US3970367A (en) * 1972-07-20 1976-07-20 Canon Kabushiki Kaisha Zoom lens system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735822A (en) * 1980-08-14 1982-02-26 Canon Inc Zoom lens

Also Published As

Publication number Publication date
JPS5712125B2 (enExample) 1982-03-09
US4189213A (en) 1980-02-19
DE2724507B2 (de) 1980-03-06
DE2724507C3 (de) 1980-11-06
DE2724507A1 (de) 1977-12-29

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