FR1315029A - Variable focal length lens - Google Patents

Variable focal length lens

Info

Publication number
FR1315029A
FR1315029A FR863423A FR863423A FR1315029A FR 1315029 A FR1315029 A FR 1315029A FR 863423 A FR863423 A FR 863423A FR 863423 A FR863423 A FR 863423A FR 1315029 A FR1315029 A FR 1315029A
Authority
FR
France
Prior art keywords
focal length
length lens
variable focal
variable
lens
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
FR863423A
Other languages
French (fr)
Inventor
Pierre Angenieux
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 filed Critical
Priority to FR863423A priority Critical patent/FR1315029A/en
Priority to GB19823/62A priority patent/GB943180A/en
Application granted granted Critical
Publication of FR1315029A publication Critical patent/FR1315029A/en
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
    • G02B15/144—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 having four groups only
    • G02B15/1441—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 having four groups only the first group being positive

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Lenses (AREA)
FR863423A 1961-05-31 1961-05-31 Variable focal length lens Expired FR1315029A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR863423A FR1315029A (en) 1961-05-31 1961-05-31 Variable focal length lens
GB19823/62A GB943180A (en) 1961-05-31 1962-05-23 Variable focal length lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR863423A FR1315029A (en) 1961-05-31 1961-05-31 Variable focal length lens

Publications (1)

Publication Number Publication Date
FR1315029A true FR1315029A (en) 1963-01-18

Family

ID=8756233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR863423A Expired FR1315029A (en) 1961-05-31 1961-05-31 Variable focal length lens

Country Status (2)

Country Link
FR (1) FR1315029A (en)
GB (1) GB943180A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481666A (en) * 1963-08-27 1969-12-02 Nippon Kogaku Kk Four component zoom lens
CN103033912A (en) * 2011-09-30 2013-04-10 奥林巴斯株式会社 Zoom lens, photographic device using zoom lens, and image transmission device and system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415592A (en) * 1965-03-01 1968-12-10 Eastman Kodak Co Linear motion zoom objective
US3549242A (en) * 1966-10-27 1970-12-22 Nippon Kogaku Kk Zooming lens of extremely high zooming ratio
US3512872A (en) * 1968-07-16 1970-05-19 Wollensak Inc Variable magnification lens system
FR2332547A1 (en) * 1975-11-21 1977-06-17 Angenieux Pierre IMAGE ENLARGEMENT OPTICAL DRIVE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481666A (en) * 1963-08-27 1969-12-02 Nippon Kogaku Kk Four component zoom lens
CN103033912A (en) * 2011-09-30 2013-04-10 奥林巴斯株式会社 Zoom lens, photographic device using zoom lens, and image transmission device and system
CN103033912B (en) * 2011-09-30 2016-10-05 奥林巴斯株式会社 Zoom lens, use the camera head of this camera lens, image transfer apparatus and system

Also Published As

Publication number Publication date
GB943180A (en) 1963-12-04

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