BE644820A - - Google Patents

Info

Publication number
BE644820A
BE644820A BE644820DA BE644820A BE 644820 A BE644820 A BE 644820A BE 644820D A BE644820D A BE 644820DA BE 644820 A BE644820 A BE 644820A
Authority
BE
Belgium
Application number
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
Priority claimed from AT185963A external-priority patent/AT240620B/de
Priority claimed from AT382063A external-priority patent/AT241153B/de
Application filed filed Critical
Publication of BE644820A publication Critical patent/BE644820A/xx

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
    • G02B15/143—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 three groups only
    • G02B15/1431—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 three groups only the first group being positive
    • G02B15/143105—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 three groups only the first group being positive arranged +-+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Lenses (AREA)
BE644820D 1963-03-08 1964-03-06 BE644820A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT185963A AT240620B (de) 1963-03-08 1963-03-08 Anordnung eines pankratischen Objektivs in einer Kamera
AT382063A AT241153B (de) 1963-05-10 1963-05-10 Pankratisches Objektiv

Publications (1)

Publication Number Publication Date
BE644820A true BE644820A (fr) 1964-07-01

Family

ID=25597002

Family Applications (1)

Application Number Title Priority Date Filing Date
BE644820D BE644820A (fr) 1963-03-08 1964-03-06

Country Status (3)

Country Link
BE (1) BE644820A (fr)
CH (1) CH433801A (fr)
GB (1) GB1054994A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT364984B (de) * 1977-09-16 1981-11-25 Eumig Optisches system
CZ2012280A3 (cs) * 2012-04-24 2013-05-09 Ceské vysoké ucení technické v Praze - fakulta stavební Objektiv s promennou ohniskovou vzdáleností
CZ304175B6 (cs) * 2012-12-12 2013-12-04 Ceské vysoké ucení technické v Praze - fakulta stavební Objektiv s promennou ohniskovou vzdáleností

Also Published As

Publication number Publication date
CH433801A (de) 1967-04-15
GB1054994A (fr)

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