JPS5425820A - Rear conversion lens - Google Patents

Rear conversion lens

Info

Publication number
JPS5425820A
JPS5425820A JP9050877A JP9050877A JPS5425820A JP S5425820 A JPS5425820 A JP S5425820A JP 9050877 A JP9050877 A JP 9050877A JP 9050877 A JP9050877 A JP 9050877A JP S5425820 A JPS5425820 A JP S5425820A
Authority
JP
Japan
Prior art keywords
conversion lens
rear conversion
lens
conversion
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
JP9050877A
Other languages
English (en)
Other versions
JPS5542726B2 (ja
Inventor
Yoshinori Hamanishi
Souichi Nakamura
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.)
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial 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 Nippon Chemical Industrial Co Ltd filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP9050877A priority Critical patent/JPS5425820A/ja
Priority to US05/928,423 priority patent/US4206971A/en
Priority to DE2833091A priority patent/DE2833091C2/de
Publication of JPS5425820A publication Critical patent/JPS5425820A/ja
Publication of JPS5542726B2 publication Critical patent/JPS5542726B2/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
    • G02B15/04—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
    • G02B15/08—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part by changing the rear part

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP9050877A 1977-07-29 1977-07-29 Rear conversion lens Granted JPS5425820A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9050877A JPS5425820A (en) 1977-07-29 1977-07-29 Rear conversion lens
US05/928,423 US4206971A (en) 1977-07-29 1978-07-27 Rear conversion lens
DE2833091A DE2833091C2 (de) 1977-07-29 1978-07-28 Nachschaltbarer Objektivzusatz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9050877A JPS5425820A (en) 1977-07-29 1977-07-29 Rear conversion lens

Publications (2)

Publication Number Publication Date
JPS5425820A true JPS5425820A (en) 1979-02-27
JPS5542726B2 JPS5542726B2 (ja) 1980-11-01

Family

ID=14000418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9050877A Granted JPS5425820A (en) 1977-07-29 1977-07-29 Rear conversion lens

Country Status (3)

Country Link
US (1) US4206971A (ja)
JP (1) JPS5425820A (ja)
DE (1) DE2833091C2 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5695210A (en) * 1979-12-28 1981-08-01 Canon Inc Lens system provided with rear converter lens
JPS58123515A (ja) * 1982-01-20 1983-07-22 Nippon Kogaku Kk <Nikon> リアコンバ−ジヨンレンズ
JP2009186611A (ja) * 2008-02-04 2009-08-20 Nikon Corp テレコンバータレンズ、光学装置、マスタレンズの焦点距離を拡大する方法
JP2021012244A (ja) * 2019-07-04 2021-02-04 キヤノン株式会社 テレコンバータレンズ、レンズ装置、および、撮像装置
JP2021081467A (ja) * 2019-11-14 2021-05-27 キヤノン株式会社 コンバーターレンズ、交換レンズ、及び撮像装置
JP2022186947A (ja) * 2019-07-04 2022-12-15 キヤノン株式会社 テレコンバータレンズ、レンズ装置、および、撮像装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746224A (en) * 1980-09-03 1982-03-16 Canon Inc Lens system equipped with auxiliary lens
JPS5886511A (ja) * 1981-11-19 1983-05-24 Olympus Optical Co Ltd アタツチメントレンズ
US4591234A (en) * 1982-01-27 1986-05-27 Nippon Kogaku K. K. Rear focus conversion lens
JPS58209707A (ja) * 1982-05-31 1983-12-06 Asahi Optical Co Ltd 超コンパクト望遠レンズ
JPS6028615A (ja) * 1983-07-27 1985-02-13 Nippon Kogaku Kk <Nikon> 望遠レンズ用リアフオ−カスコンバ−ジヨンレンズ
US4655558A (en) * 1983-07-27 1987-04-07 Nippon Kogaku K. K. Rear focus conversion lens apparatus
JPS60136712A (ja) * 1983-12-26 1985-07-20 Nippon Kogaku Kk <Nikon> リアコンバ−ジヨンレンズ
JPS60260911A (ja) * 1984-06-08 1985-12-24 Olympus Optical Co Ltd リアコンバ−ジヨンレンズ
JP3251041B2 (ja) * 1992-01-13 2002-01-28 オリンパス光学工業株式会社 リアコンバーターレンズ
JPH07253533A (ja) * 1994-03-15 1995-10-03 Nikon Corp 内焦式対物レンズ
US5801886A (en) * 1997-02-21 1998-09-01 Samsung Aerospace Industries, Ltd. Image magnification apparatus
JPH11311739A (ja) * 1998-04-28 1999-11-09 Asahi Optical Co Ltd 望遠鏡対物レンズ系
JP2020140021A (ja) * 2019-02-27 2020-09-03 キヤノン株式会社 コンバーターレンズ、交換レンズ、及び撮像装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897528A (ja) * 1972-03-28 1973-12-12

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328089B2 (ja) * 1973-05-01 1978-08-12
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897528A (ja) * 1972-03-28 1973-12-12

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5695210A (en) * 1979-12-28 1981-08-01 Canon Inc Lens system provided with rear converter lens
JPS6145807B2 (ja) * 1979-12-28 1986-10-09 Canon Kk
JPS58123515A (ja) * 1982-01-20 1983-07-22 Nippon Kogaku Kk <Nikon> リアコンバ−ジヨンレンズ
JPH0128923B2 (ja) * 1982-01-20 1989-06-06 Nikon Kk
JP2009186611A (ja) * 2008-02-04 2009-08-20 Nikon Corp テレコンバータレンズ、光学装置、マスタレンズの焦点距離を拡大する方法
JP2021012244A (ja) * 2019-07-04 2021-02-04 キヤノン株式会社 テレコンバータレンズ、レンズ装置、および、撮像装置
JP2022186947A (ja) * 2019-07-04 2022-12-15 キヤノン株式会社 テレコンバータレンズ、レンズ装置、および、撮像装置
JP2021081467A (ja) * 2019-11-14 2021-05-27 キヤノン株式会社 コンバーターレンズ、交換レンズ、及び撮像装置
US11768357B2 (en) 2019-11-14 2023-09-26 Canon Kabushiki Kaisha Converter lens, interchangeable lens, and image-capturing apparatus

Also Published As

Publication number Publication date
US4206971A (en) 1980-06-10
DE2833091C2 (de) 1985-12-12
JPS5542726B2 (ja) 1980-11-01
DE2833091A1 (de) 1979-02-08

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