FR1366943A - Variable focal length lens - Google Patents

Variable focal length lens

Info

Publication number
FR1366943A
FR1366943A FR937303A FR937303A FR1366943A FR 1366943 A FR1366943 A FR 1366943A FR 937303 A FR937303 A FR 937303A FR 937303 A FR937303 A FR 937303A FR 1366943 A FR1366943 A FR 1366943A
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
FR937303A
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 FR937303A priority Critical patent/FR1366943A/en
Priority to GB9091/64A priority patent/GB1008309A/en
Priority to DE19641447193 priority patent/DE1447193A1/en
Application granted granted Critical
Publication of FR1366943A publication Critical patent/FR1366943A/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)
  • Lenses (AREA)
FR937303A 1963-06-07 1963-06-07 Variable focal length lens Expired FR1366943A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR937303A FR1366943A (en) 1963-06-07 1963-06-07 Variable focal length lens
GB9091/64A GB1008309A (en) 1963-06-07 1964-03-04 Variable focal length lens system
DE19641447193 DE1447193A1 (en) 1963-06-07 1964-03-16 Lens with variable focal length

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR937303A FR1366943A (en) 1963-06-07 1963-06-07 Variable focal length lens

Publications (1)

Publication Number Publication Date
FR1366943A true FR1366943A (en) 1964-07-17

Family

ID=8805510

Family Applications (1)

Application Number Title Priority Date Filing Date
FR937303A Expired FR1366943A (en) 1963-06-07 1963-06-07 Variable focal length lens

Country Status (3)

Country Link
DE (1) DE1447193A1 (en)
FR (1) FR1366943A (en)
GB (1) GB1008309A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270848A (en) * 1975-11-21 1981-06-02 Pierre Angenieux Image enlarging optical variator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286308B (en) * 1966-09-14 1969-01-02 Asahi Optical Co Ltd Lens changeable focal length
US3524696A (en) * 1967-06-21 1970-08-18 Nippon Kogaku Kk Wide angle type zooming lens
JPS5134741A (en) * 1974-09-19 1976-03-24 Konishiroku Photo Ind JUNKOKAKUZUUMURENZU
JPS5163634A (en) * 1974-11-21 1976-06-02 Tokina Optical Kokakugawa ofukumu zuumurenzu
FR2811202B1 (en) * 2000-07-06 2004-04-09 Prod Berger METHOD OF DIFFUSION OF A ACARICIDE COMPOSITION CONSISTING OF PERMETHRIN AND TETRAMETHRIN AND USE OF A CATALYTIC COMBUSTION FLASK FOR IMPLEMENTATION OF SUCH A PROCESS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270848A (en) * 1975-11-21 1981-06-02 Pierre Angenieux Image enlarging optical variator

Also Published As

Publication number Publication date
DE1447193A1 (en) 1968-11-21
GB1008309A (en) 1965-10-27

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