FR2053187A1 - - Google Patents

Info

Publication number
FR2053187A1
FR2053187A1 FR7027510A FR7027510A FR2053187A1 FR 2053187 A1 FR2053187 A1 FR 2053187A1 FR 7027510 A FR7027510 A FR 7027510A FR 7027510 A FR7027510 A FR 7027510A FR 2053187 A1 FR2053187 A1 FR 2053187A1
Authority
FR
France
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
FR7027510A
Other versions
FR2053187B1 (fr
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
Publication of FR2053187A1 publication Critical patent/FR2053187A1/fr
Application granted granted Critical
Publication of FR2053187B1 publication Critical patent/FR2053187B1/fr
Expired 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
    • G02B15/22—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 with movable lens means specially adapted for focusing at close distances

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR7027510A 1969-07-26 1970-07-24 Expired FR2053187B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44058743A JPS4832387B1 (fr) 1969-07-26 1969-07-26

Publications (2)

Publication Number Publication Date
FR2053187A1 true FR2053187A1 (fr) 1971-04-16
FR2053187B1 FR2053187B1 (fr) 1973-11-30

Family

ID=13092996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7027510A Expired FR2053187B1 (fr) 1969-07-26 1970-07-24

Country Status (5)

Country Link
US (1) US3659921A (fr)
JP (1) JPS4832387B1 (fr)
DE (1) DE2036835C2 (fr)
FR (1) FR2053187B1 (fr)
GB (1) GB1321060A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023814B1 (fr) * 1970-07-25 1975-08-11
FR2137598B1 (fr) * 1971-05-08 1975-03-21 Canon Kk
US3817600A (en) * 1971-06-14 1974-06-18 Ponder & Best Zoom lens having close-up focusing mode of operation
US3841735A (en) * 1972-07-17 1974-10-15 Sanko Kogaku Kogyo Kk Zoom lens system operable for extremely short distance photography
JPS49141841U (fr) * 1973-04-04 1974-12-06
JPS52145051A (en) * 1976-05-27 1977-12-02 Minolta Camera Co Ltd Zoom lens system permitting extra-close-up photographing
DE2723540A1 (de) * 1977-05-25 1978-12-07 Schneider Co Optische Werke Makroeinstell-einrichtung in objektiven mit veraenderbarer brennweite
JPS592884B2 (ja) * 1979-07-28 1984-01-21 旭光学工業株式会社 ズ−ムレンズのフオ−カス方式
JPS59155820A (ja) * 1983-02-24 1984-09-05 Canon Inc ズ−ムレンズ
JPS607892U (ja) * 1983-06-29 1985-01-19 株式会社　タカラ 人形起立台
US4701034A (en) * 1984-03-02 1987-10-20 Olympus Optical Co., Ltd. Large aperture zoom lens system
CN103197407B (zh) * 2012-11-25 2015-01-14 西南技术物理研究所 共光路红外双波段共焦面变焦光学系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101793B (de) * 1959-02-03 1961-03-09 Zeiss Carl Fa Photographisches Objektiv mit kontinuierlich veraenderlicher Brennweite
FR1344261A (fr) * 1962-05-28 1963-11-29 Objectif de longueur focale variable
CH381878A (fr) * 1962-11-15 1964-09-15 Paillard Sa Objectif à focale variable
DE1279962B (de) * 1967-06-30 1968-10-10 Schneider Co Optische Werke Lichtstarkes Objektiv mit veraenderbarer Brennweite

Also Published As

Publication number Publication date
FR2053187B1 (fr) 1973-11-30
GB1321060A (en) 1973-06-20
DE2036835A1 (de) 1971-02-18
DE2036835C2 (de) 1984-02-23
US3659921A (en) 1972-05-02
JPS4832387B1 (fr) 1973-10-05

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