JPS6119006B2 - - Google Patents

Info

Publication number
JPS6119006B2
JPS6119006B2 JP3595780A JP3595780A JPS6119006B2 JP S6119006 B2 JPS6119006 B2 JP S6119006B2 JP 3595780 A JP3595780 A JP 3595780A JP 3595780 A JP3595780 A JP 3595780A JP S6119006 B2 JPS6119006 B2 JP S6119006B2
Authority
JP
Japan
Prior art keywords
lens
lens group
focal length
lens system
switching
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
JP3595780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56132305A (en
Inventor
Keiji Ikemori
Kazuo Tanaka
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 JP3595780A priority Critical patent/JPS56132305A/ja
Priority to US06/244,780 priority patent/US4466707A/en
Priority to DE19813110797 priority patent/DE3110797A1/de
Publication of JPS56132305A publication Critical patent/JPS56132305A/ja
Publication of JPS6119006B2 publication Critical patent/JPS6119006B2/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
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP3595780A 1980-03-21 1980-03-21 Interchangeable type variable magnification lens system Granted JPS56132305A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP3595780A JPS56132305A (en) 1980-03-21 1980-03-21 Interchangeable type variable magnification lens system
US06/244,780 US4466707A (en) 1980-03-21 1981-03-17 Variable magnification lens system
DE19813110797 DE3110797A1 (de) 1980-03-21 1981-03-19 Linsensystem mit variabler vergroesserung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3595780A JPS56132305A (en) 1980-03-21 1980-03-21 Interchangeable type variable magnification lens system

Publications (2)

Publication Number Publication Date
JPS56132305A JPS56132305A (en) 1981-10-16
JPS6119006B2 true JPS6119006B2 (enrdf_load_stackoverflow) 1986-05-15

Family

ID=12456447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3595780A Granted JPS56132305A (en) 1980-03-21 1980-03-21 Interchangeable type variable magnification lens system

Country Status (1)

Country Link
JP (1) JPS56132305A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58108510A (ja) * 1981-12-23 1983-06-28 Canon Inc 切換え式変倍レンズ系
JPS593979U (ja) * 1982-06-30 1984-01-11 松下電工株式会社 折畳扉の下レ−ル水抜装置
JPS59177514A (ja) * 1983-03-29 1984-10-08 Olympus Optical Co Ltd 写真レンズ
JPS60170815A (ja) * 1984-02-16 1985-09-04 Olympus Optical Co Ltd 後群交換式変倍レンズ
JPS60222813A (ja) * 1984-04-20 1985-11-07 Olympus Optical Co Ltd 補助レンズ交換式変倍レンズ

Also Published As

Publication number Publication date
JPS56132305A (en) 1981-10-16

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