DE2724507C3 - Varioobjektiv - Google Patents

Varioobjektiv

Info

Publication number
DE2724507C3
DE2724507C3 DE2724507A DE2724507A DE2724507C3 DE 2724507 C3 DE2724507 C3 DE 2724507C3 DE 2724507 A DE2724507 A DE 2724507A DE 2724507 A DE2724507 A DE 2724507A DE 2724507 C3 DE2724507 C3 DE 2724507C3
Authority
DE
Germany
Prior art keywords
lens
positive
negative
lens group
focal length
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
DE2724507A
Other languages
German (de)
English (en)
Other versions
DE2724507B2 (de
DE2724507A1 (de
Inventor
Yutaka Tokio 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.)
Nikon Corp
Original Assignee
Nippon Kogaku 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 Nippon Kogaku KK filed Critical Nippon Kogaku KK
Publication of DE2724507A1 publication Critical patent/DE2724507A1/de
Publication of DE2724507B2 publication Critical patent/DE2724507B2/de
Application granted granted Critical
Publication of DE2724507C3 publication Critical patent/DE2724507C3/de
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
    • G02B15/16—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)
DE2724507A 1976-05-31 1977-05-31 Varioobjektiv Expired DE2724507C3 (de)

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 (3)

Publication Number Publication Date
DE2724507A1 DE2724507A1 (de) 1977-12-29
DE2724507B2 DE2724507B2 (de) 1980-03-06
DE2724507C3 true DE2724507C3 (de) 1980-11-06

Family

ID=13199842

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2724507A Expired DE2724507C3 (de) 1976-05-31 1977-05-31 Varioobjektiv

Country Status (3)

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

Families Citing this family (12)

* 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
JPS5735822A (en) * 1980-08-14 1982-02-26 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

Also Published As

Publication number Publication date
JPS5712125B2 (enExample) 1982-03-09
JPS52146250A (en) 1977-12-05
US4189213A (en) 1980-02-19
DE2724507B2 (de) 1980-03-06
DE2724507A1 (de) 1977-12-29

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Legal Events

Date Code Title Description
OD Request for examination
BI Miscellaneous see part 2
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee