FR1520491A - Objectif de prise de vues cinématographiques à focale variable - Google Patents

Objectif de prise de vues cinématographiques à focale variable

Info

Publication number
FR1520491A
FR1520491A FR92879A FR92879A FR1520491A FR 1520491 A FR1520491 A FR 1520491A FR 92879 A FR92879 A FR 92879A FR 92879 A FR92879 A FR 92879A FR 1520491 A FR1520491 A FR 1520491A
Authority
FR
France
Prior art keywords
cinematic
vari
focal
shooting lens
shooting
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
FR92879A
Other languages
English (en)
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.)
OPTIQUE PREC SOC D
Original Assignee
OPTIQUE PREC SOC D
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 OPTIQUE PREC SOC D filed Critical OPTIQUE PREC SOC D
Priority to FR92879A priority Critical patent/FR1520491A/fr
Priority to BE708123D priority patent/BE708123A/xx
Priority to CH18868A priority patent/CH469993A/fr
Priority to US698329A priority patent/US3532415A/en
Priority to NL6800893A priority patent/NL6800893A/xx
Priority to GB3334/68A priority patent/GB1213491A/en
Priority to DE1968S0113898 priority patent/DE1622994B1/de
Application granted granted Critical
Publication of FR1520491A publication Critical patent/FR1520491A/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
    • G02B15/145—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 five groups only
    • G02B15/1455—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 five groups only the first group being negative
    • G02B15/145511—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 five groups only the first group being negative arranged -+-+-
FR92879A 1967-01-27 1967-01-27 Objectif de prise de vues cinématographiques à focale variable Expired FR1520491A (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR92879A FR1520491A (fr) 1967-01-27 1967-01-27 Objectif de prise de vues cinématographiques à focale variable
BE708123D BE708123A (fr) 1967-01-27 1967-12-18
CH18868A CH469993A (fr) 1967-01-27 1968-01-08 Objectif de prise de vues cinématographiques à focale variable
US698329A US3532415A (en) 1967-01-27 1968-01-16 Cinematographic taking lens with variable focal length
NL6800893A NL6800893A (fr) 1967-01-27 1968-01-19
GB3334/68A GB1213491A (en) 1967-01-27 1968-01-22 A cinematographic taking lens with variable focal length
DE1968S0113898 DE1622994B1 (de) 1967-01-27 1968-01-27 Pankratisches Objektiv für kinematographische Aufnahmen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR92879A FR1520491A (fr) 1967-01-27 1967-01-27 Objectif de prise de vues cinématographiques à focale variable

Publications (1)

Publication Number Publication Date
FR1520491A true FR1520491A (fr) 1968-04-12

Family

ID=8624506

Family Applications (1)

Application Number Title Priority Date Filing Date
FR92879A Expired FR1520491A (fr) 1967-01-27 1967-01-27 Objectif de prise de vues cinématographiques à focale variable

Country Status (7)

Country Link
US (1) US3532415A (fr)
BE (1) BE708123A (fr)
CH (1) CH469993A (fr)
DE (1) DE1622994B1 (fr)
FR (1) FR1520491A (fr)
GB (1) GB1213491A (fr)
NL (1) NL6800893A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253281B (en) * 1991-02-15 1994-05-25 Asahi Optical Co Ltd Zoom lens
US5416639A (en) * 1991-06-29 1995-05-16 Olympus Optical Co., Ltd. Zoom lens system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192829A (en) * 1961-06-16 1965-07-06 Yamaji Keizo Varifocal lens system of wide varifocal range
FR1336300A (fr) * 1962-07-11 1963-08-30 Soc Optique Mec Haute Prec Système optique à distance focale variable

Also Published As

Publication number Publication date
US3532415A (en) 1970-10-06
DE1622994B1 (de) 1970-11-12
BE708123A (fr) 1968-05-02
CH469993A (fr) 1969-03-15
NL6800893A (fr) 1968-07-29
GB1213491A (en) 1970-11-25

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