JPS51144653A - Zoom lens system - Google Patents

Zoom lens system

Info

Publication number
JPS51144653A
JPS51144653A JP50068764A JP6876475A JPS51144653A JP S51144653 A JPS51144653 A JP S51144653A JP 50068764 A JP50068764 A JP 50068764A JP 6876475 A JP6876475 A JP 6876475A JP S51144653 A JPS51144653 A JP S51144653A
Authority
JP
Japan
Prior art keywords
zoom lens
lens system
lens group
movable lens
miniaturizing
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
JP50068764A
Other languages
Japanese (ja)
Other versions
JPS5913003B2 (en
Inventor
Akira Tajima
Naoto Kawamura
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 JP50068764A priority Critical patent/JPS5913003B2/en
Priority to DE19762625058 priority patent/DE2625058C2/en
Publication of JPS51144653A publication Critical patent/JPS51144653A/en
Priority to US05/872,064 priority patent/US4153339A/en
Publication of JPS5913003B2 publication Critical patent/JPS5913003B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

PURPOSE: Varying the air distance between the front movable lens group and the rear movable lens group varies the focal distances of the whole system, miniaturizing the system without deteriorating the aberration of a zoom lens, which photographing range is extended to wide angle side.
COPYRIGHT: (C)1976,JPO&Japio
JP50068764A 1975-06-06 1975-06-06 Zoom lens system Expired JPS5913003B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP50068764A JPS5913003B2 (en) 1975-06-06 1975-06-06 Zoom lens system
DE19762625058 DE2625058C2 (en) 1975-06-06 1976-06-03 Varifocal lens
US05/872,064 US4153339A (en) 1975-06-06 1978-01-25 Zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50068764A JPS5913003B2 (en) 1975-06-06 1975-06-06 Zoom lens system

Publications (2)

Publication Number Publication Date
JPS51144653A true JPS51144653A (en) 1976-12-11
JPS5913003B2 JPS5913003B2 (en) 1984-03-27

Family

ID=13383118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50068764A Expired JPS5913003B2 (en) 1975-06-06 1975-06-06 Zoom lens system

Country Status (2)

Country Link
JP (1) JPS5913003B2 (en)
DE (1) DE2625058C2 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415733A (en) * 1977-06-10 1979-02-05 Asahi Optical Co Ltd Lowwmagnification variableeangleelens system
JPS5472066A (en) * 1977-11-18 1979-06-09 Minolta Camera Co Ltd Divergent refracting power group preceding type two- compoment zoom lens system
JPS5657018A (en) * 1979-09-28 1981-05-19 Philips Nv Variable magnification objective lense
JPS56147113A (en) * 1980-04-18 1981-11-14 Canon Inc Zoom lens
JPS5719708A (en) * 1980-07-10 1982-02-02 Konishiroku Photo Ind Co Ltd Zoom lens
JPS5720713A (en) * 1980-07-11 1982-02-03 Canon Inc Zoom lens
JPS5727219A (en) * 1980-07-25 1982-02-13 Canon Inc Zoom lens
JPS5748709A (en) * 1980-09-09 1982-03-20 Konishiroku Photo Ind Co Ltd Wide angle zoom lens system
JPS5767908A (en) * 1980-10-14 1982-04-24 Canon Inc Wide-angle zoom lens
JPS57190917A (en) * 1981-05-20 1982-11-24 Canon Inc Superwide-angle zoom lens
JPS5833212A (en) * 1981-08-21 1983-02-26 Canon Inc Large aperture wide-angle zoom lens
JPS5864803U (en) * 1981-10-27 1983-05-02 トヨタ自動車株式会社 Auxiliary valve drive structure
JPS58132209A (en) * 1982-02-01 1983-08-06 Canon Inc Wide angle zoom lens
JPS5931921A (en) * 1982-08-16 1984-02-21 Olympus Optical Co Ltd Zoom lens
JPS6187118A (en) * 1984-10-05 1986-05-02 Konishiroku Photo Ind Co Ltd Zoom lens consisting of two groups
JPS62120718U (en) * 1986-12-04 1987-07-31

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189212A (en) * 1976-05-06 1980-02-19 Nippon Kogaku K.K. Wide angle zoom lens system
JPS5811609B2 (en) * 1978-03-10 1983-03-03 旭光学工業株式会社 Compact wide-angle zoom lens

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871632A (en) * 1971-12-27 1973-09-27
JPS492548A (en) * 1972-04-18 1974-01-10
JPS4920215A (en) * 1972-06-15 1974-02-22

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871632A (en) * 1971-12-27 1973-09-27
JPS492548A (en) * 1972-04-18 1974-01-10
JPS4920215A (en) * 1972-06-15 1974-02-22

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415733A (en) * 1977-06-10 1979-02-05 Asahi Optical Co Ltd Lowwmagnification variableeangleelens system
JPS5716328B2 (en) * 1977-06-10 1982-04-05
JPS6140966B2 (en) * 1977-11-18 1986-09-12 Minolta Camera Kk
JPS5472066A (en) * 1977-11-18 1979-06-09 Minolta Camera Co Ltd Divergent refracting power group preceding type two- compoment zoom lens system
JPS5657018A (en) * 1979-09-28 1981-05-19 Philips Nv Variable magnification objective lense
JPS56147113A (en) * 1980-04-18 1981-11-14 Canon Inc Zoom lens
JPH0430001B2 (en) * 1980-04-18 1992-05-20
JPS5719708A (en) * 1980-07-10 1982-02-02 Konishiroku Photo Ind Co Ltd Zoom lens
JPS5720713A (en) * 1980-07-11 1982-02-03 Canon Inc Zoom lens
JPS5727219A (en) * 1980-07-25 1982-02-13 Canon Inc Zoom lens
JPS6354163B2 (en) * 1980-07-25 1988-10-27 Canon Kk
JPS5748709A (en) * 1980-09-09 1982-03-20 Konishiroku Photo Ind Co Ltd Wide angle zoom lens system
JPS6354162B2 (en) * 1980-09-09 1988-10-27 Konika Kk
JPS5767908A (en) * 1980-10-14 1982-04-24 Canon Inc Wide-angle zoom lens
JPS57190917A (en) * 1981-05-20 1982-11-24 Canon Inc Superwide-angle zoom lens
JPS6151771B2 (en) * 1981-05-20 1986-11-10 Canon Kk
JPS5833212A (en) * 1981-08-21 1983-02-26 Canon Inc Large aperture wide-angle zoom lens
JPS5864803U (en) * 1981-10-27 1983-05-02 トヨタ自動車株式会社 Auxiliary valve drive structure
JPS6161655B2 (en) * 1982-02-01 1986-12-26 Canon Kk
JPS58132209A (en) * 1982-02-01 1983-08-06 Canon Inc Wide angle zoom lens
JPS5931921A (en) * 1982-08-16 1984-02-21 Olympus Optical Co Ltd Zoom lens
JPS6187118A (en) * 1984-10-05 1986-05-02 Konishiroku Photo Ind Co Ltd Zoom lens consisting of two groups
JPH0320733B2 (en) * 1984-10-05 1991-03-20 Konishiroku Photo Ind
JPS62120718U (en) * 1986-12-04 1987-07-31

Also Published As

Publication number Publication date
DE2625058C2 (en) 1985-03-14
JPS5913003B2 (en) 1984-03-27
DE2625058A1 (en) 1976-12-16

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