JPS5397451A - Zoom lens system - Google Patents

Zoom lens system

Info

Publication number
JPS5397451A
JPS5397451A JP1200777A JP1200777A JPS5397451A JP S5397451 A JPS5397451 A JP S5397451A JP 1200777 A JP1200777 A JP 1200777A JP 1200777 A JP1200777 A JP 1200777A JP S5397451 A JPS5397451 A JP S5397451A
Authority
JP
Japan
Prior art keywords
lens system
group
zoom lens
negative
letting
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
JP1200777A
Other languages
English (en)
Other versions
JPS6139647B2 (ja
Inventor
Shuji Ogino
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP1200777A priority Critical patent/JPS5397451A/ja
Priority to US05/873,796 priority patent/US4192577A/en
Priority to DE19782804667 priority patent/DE2804667A1/de
Publication of JPS5397451A publication Critical patent/JPS5397451A/ja
Publication of JPS6139647B2 publication Critical patent/JPS6139647B2/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
    • G02B15/142—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 two groups only
    • G02B15/1421—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 two groups only the first group being positive

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP1200777A 1977-02-04 1977-02-04 Zoom lens system Granted JPS5397451A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1200777A JPS5397451A (en) 1977-02-04 1977-02-04 Zoom lens system
US05/873,796 US4192577A (en) 1977-02-04 1978-01-31 Zoom lens system
DE19782804667 DE2804667A1 (de) 1977-02-04 1978-02-03 Zoomobjektiv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1200777A JPS5397451A (en) 1977-02-04 1977-02-04 Zoom lens system

Publications (2)

Publication Number Publication Date
JPS5397451A true JPS5397451A (en) 1978-08-25
JPS6139647B2 JPS6139647B2 (ja) 1986-09-04

Family

ID=11793520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1200777A Granted JPS5397451A (en) 1977-02-04 1977-02-04 Zoom lens system

Country Status (3)

Country Link
US (1) US4192577A (ja)
JP (1) JPS5397451A (ja)
DE (1) DE2804667A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60131514A (ja) * 1983-12-20 1985-07-13 Matsushita Electric Ind Co Ltd ズ−ムレンズ
JP2016004075A (ja) * 2014-06-13 2016-01-12 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299454A (en) * 1978-09-11 1981-11-10 Vivitar Corporation Wide angle to long focus zoom lens
JPS6036568B2 (ja) * 1979-07-16 1985-08-21 旭光学工業株式会社 写真用高倍ズ−ムレンズ
JPS56133713A (en) * 1980-03-24 1981-10-20 Asahi Optical Co Ltd Zoom lens
US4576445A (en) * 1983-05-27 1986-03-18 Nippon Kogaku K. K. Zoom lens
JPH01158245U (ja) * 1988-04-20 1989-11-01
JP5484197B2 (ja) 2010-05-26 2014-05-07 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4976540A (ja) * 1972-11-20 1974-07-24
JPS5199037A (ja) * 1975-02-26 1976-09-01 Canon Kk
JPS5199036A (ja) * 1975-02-26 1976-09-01 Canon Kk

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160699A (en) * 1960-06-27 1964-12-08 Canon Camera Co Photographic zoom objective
US3377119A (en) * 1963-01-21 1968-04-09 Canon Camera Co Mechanically compensated zoom lens system
US3615125A (en) * 1967-07-04 1971-10-26 Nippon Kogaku Kk Compact telephoto type zoom lens
US3523719A (en) * 1968-03-29 1970-08-11 Frank G Back Macro objective for single lens reflex camera with focal plane shutter
AT340169B (de) * 1975-12-05 1977-11-25 Eumig Pankratisches kameraobjektiv

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4976540A (ja) * 1972-11-20 1974-07-24
JPS5199037A (ja) * 1975-02-26 1976-09-01 Canon Kk
JPS5199036A (ja) * 1975-02-26 1976-09-01 Canon Kk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60131514A (ja) * 1983-12-20 1985-07-13 Matsushita Electric Ind Co Ltd ズ−ムレンズ
JPS6361642B2 (ja) * 1983-12-20 1988-11-29
JP2016004075A (ja) * 2014-06-13 2016-01-12 キヤノン株式会社 ズームレンズ及びそれを有する撮像装置

Also Published As

Publication number Publication date
JPS6139647B2 (ja) 1986-09-04
DE2804667A1 (de) 1978-08-10
US4192577A (en) 1980-03-11

Similar Documents

Publication Publication Date Title
JPS5232342A (en) Variable magnification optical unit
JPS5528038A (en) Lens system for close distance photographing
JPS5391756A (en) Zoom lens system
JPS52153752A (en) Wide angle zoom lens
JPS5363014A (en) Inverse galiled finder of variable magnification type
JPS5397451A (en) Zoom lens system
JPS52121347A (en) Objective lens for hard mirror
JPS5263330A (en) Focal distance variable system by composite lens
JPS53131835A (en) Reflecting objective lens
JPS5430028A (en) Wide-angle lens
JPS5441129A (en) Modified gauss type photographic lens
JPS5291449A (en) Zoom lens which is good in near range focusing function
JPS5535336A (en) Wide angle zoom lens
JPS52131718A (en) Wide angle lens of retrofocus type
JPS5336250A (en) Fresnel lens
JPS5211929A (en) Telephoto lens of the short whole length
JPS5417042A (en) Wide-angle zoom lens
JPS561912A (en) Copying variable power lens system
JPS5784417A (en) Optical system for focal length conversion
JPS5390928A (en) Telephoto lens
JPS52117127A (en) Iris diaphragm
JPS53135657A (en) Eye lens in eyepiece system
JPS5694318A (en) Lens system provided with rear converter lens
JPS5611427A (en) Variable power afocal lens system
JPS5286329A (en) Photographic lens of gaussian type