JPS6113206B2 - - Google Patents

Info

Publication number
JPS6113206B2
JPS6113206B2 JP54001920A JP192079A JPS6113206B2 JP S6113206 B2 JPS6113206 B2 JP S6113206B2 JP 54001920 A JP54001920 A JP 54001920A JP 192079 A JP192079 A JP 192079A JP S6113206 B2 JPS6113206 B2 JP S6113206B2
Authority
JP
Japan
Prior art keywords
lens
lens group
negative
focal length
attachment
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
JP54001920A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5595920A (en
Inventor
Keiji Ikemori
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 JP192079A priority Critical patent/JPS5595920A/ja
Priority to US06/109,172 priority patent/US4340279A/en
Publication of JPS5595920A publication Critical patent/JPS5595920A/ja
Publication of JPS6113206B2 publication Critical patent/JPS6113206B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/60—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having five components only
    • 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
    • G02B15/10—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by adding a part, e.g. close-up attachment

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP192079A 1979-01-11 1979-01-11 Rear attachment lens Granted JPS5595920A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP192079A JPS5595920A (en) 1979-01-11 1979-01-11 Rear attachment lens
US06/109,172 US4340279A (en) 1979-01-11 1980-01-02 Rear attachment lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP192079A JPS5595920A (en) 1979-01-11 1979-01-11 Rear attachment lens

Publications (2)

Publication Number Publication Date
JPS5595920A JPS5595920A (en) 1980-07-21
JPS6113206B2 true JPS6113206B2 (en]) 1986-04-12

Family

ID=11515018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP192079A Granted JPS5595920A (en) 1979-01-11 1979-01-11 Rear attachment lens

Country Status (2)

Country Link
US (1) US4340279A (en])
JP (1) JPS5595920A (en])

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5784417A (en) * 1980-11-13 1982-05-26 Canon Inc Optical system for focal length conversion
JPS58203409A (ja) * 1982-05-24 1983-11-26 Asahi Optical Co Ltd リア・アタツチメントレンズ
JPS60170815A (ja) * 1984-02-16 1985-09-04 Olympus Optical Co Ltd 後群交換式変倍レンズ
JPH05142473A (ja) * 1991-11-18 1993-06-11 Nikon Corp リアコンバージヨンレンズ
JP3821929B2 (ja) * 1997-09-29 2006-09-13 フジノン株式会社 カラー画像読み取り用ガウス型レンズ
JP3359277B2 (ja) * 1997-12-24 2002-12-24 キヤノン株式会社 回折屈折型リアアタッチメントレンズ
JP4695768B2 (ja) * 2001-03-07 2011-06-08 キヤノン株式会社 リアコンバーターレンズ及びそれを用いた光学機器
JP2002287025A (ja) * 2001-03-26 2002-10-03 Fuji Photo Optical Co Ltd マウント変換用アダプタレンズ
JP2009080176A (ja) * 2007-09-25 2009-04-16 Olympus Imaging Corp リアコンバーターレンズ装置及びそれを備えた撮影システム
JP5320163B2 (ja) * 2009-05-26 2013-10-23 富士フイルム株式会社 撮像レンズおよび撮像装置
JP6165675B2 (ja) * 2014-05-28 2017-07-19 富士フイルム株式会社 リアアタッチメントレンズ
JP6731899B2 (ja) * 2017-09-15 2020-07-29 富士フイルム株式会社 リアコンバータレンズおよび撮像装置
JP7379017B2 (ja) * 2019-08-20 2023-11-14 キヤノン株式会社 エクステンダレンズ群、ズームレンズ、および撮像装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1302321B (de) * 1965-05-08 1972-05-31 Ernst Leitz Gmbh, 6330 Wetzlar Objektiv mit großer Baulänge
JPS52109930A (en) * 1976-03-11 1977-09-14 Nippon Chemical Ind Rear conversion lens
JPS5834813B2 (ja) * 1976-06-01 1983-07-29 キヤノン株式会社 アタツチメントレンズ

Also Published As

Publication number Publication date
JPS5595920A (en) 1980-07-21
US4340279A (en) 1982-07-20

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