DE1152833B - Objektiv mit verstellbarer Brennweite - Google Patents

Objektiv mit verstellbarer Brennweite

Info

Publication number
DE1152833B
DE1152833B DEP22567A DEP0022567A DE1152833B DE 1152833 B DE1152833 B DE 1152833B DE P22567 A DEP22567 A DE P22567A DE P0022567 A DEP0022567 A DE P0022567A DE 1152833 B DE1152833 B DE 1152833B
Authority
DE
Germany
Prior art keywords
lens
group
adjustable
focal length
groups
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.)
Pending
Application number
DEP22567A
Other languages
German (de)
English (en)
Inventor
Francois Laurent
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.)
Paillard SA
Original Assignee
Paillard SA
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 Paillard SA filed Critical Paillard SA
Publication of DE1152833B publication Critical patent/DE1152833B/de
Pending 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
    • G02B15/1445—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 negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DEP22567A 1958-11-13 1959-04-10 Objektiv mit verstellbarer Brennweite Pending DE1152833B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6614758 1958-11-13

Publications (1)

Publication Number Publication Date
DE1152833B true DE1152833B (de) 1963-08-14

Family

ID=4526924

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP22567A Pending DE1152833B (de) 1958-11-13 1959-04-10 Objektiv mit verstellbarer Brennweite

Country Status (5)

Country Link
US (1) US3034404A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH347650A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1152833B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB915221A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL112929C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1537687A (fr) * 1967-01-30 1968-09-07 Commissariat Energie Atomique Perfectionnements aux objectifs de reproduction
JP2780309B2 (ja) * 1989-02-28 1998-07-30 ミノルタ株式会社 コンパクトなズームレンズ系

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947669A (en) * 1931-09-28 1934-02-20 Bell & Howell Co Lens of variable equivalent focal length
GB440397A (en) * 1934-03-26 1935-12-30 Henri Chretien Improvements in optical systems
US2159394A (en) * 1936-06-09 1939-05-23 Paramount Productions Inc Variable equivalent focal length lens
FR1120271A (fr) * 1955-01-24 1956-07-03 Objectif à longueur focale variable

Also Published As

Publication number Publication date
CH347650A (fr) 1960-07-15
GB915221A (en) 1963-01-09
NL238193A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US3034404A (en) 1962-05-15
NL112929C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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