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BE586289A - Mécanisme de mise au point pour un objectif - Google Patents

Mécanisme de mise au point pour un objectif

Info

Publication number
BE586289A
BE586289A BE586289A BE586289A BE586289A BE 586289 A BE586289 A BE 586289A BE 586289 A BE586289 A BE 586289A BE 586289 A BE586289 A BE 586289A BE 586289 A BE586289 A BE 586289A
Authority
BE
Belgium
Prior art keywords
lens
focus mechanism
focus
Prior art date
Application number
BE586289A
Other languages
English (en)
Inventor
Eduard Kegnickl
Original Assignee
Alois Handler
Vockenhuber Karl
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 Alois Handler, Vockenhuber Karl filed Critical Alois Handler
Publication of BE586289A publication Critical patent/BE586289A/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • 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)
  • Transmission Devices (AREA)
BE586289A 1959-01-08 1960-01-06 Mécanisme de mise au point pour un objectif BE586289A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT11959A AT209069B (de) 1959-01-08 1959-01-08 Einstellgetriebe für ein Objektiv

Publications (1)

Publication Number Publication Date
BE586289A true BE586289A (fr) 1960-05-03

Family

ID=3482013

Family Applications (1)

Application Number Title Priority Date Filing Date
BE586289A BE586289A (fr) 1959-01-08 1960-01-06 Mécanisme de mise au point pour un objectif

Country Status (7)

Country Link
US (1) US3059534A (fr)
AT (1) AT209069B (fr)
BE (1) BE586289A (fr)
CH (1) CH374218A (fr)
DE (1) DE1127703B (fr)
FR (1) FR1244740A (fr)
GB (1) GB943409A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1080011A (en) * 1963-01-18 1967-08-23 Rank Precision Ind Ltd Improvements in or relating to control devices for optical objectives of variable equivalent focal length
GB1054972A (fr) * 1963-02-22
JPS50122209A (fr) * 1974-02-18 1975-09-25
JPH0455014U (fr) * 1990-09-17 1992-05-12
US5912774A (en) * 1995-07-28 1999-06-15 Canon Kabushiki Kaisha Lens moving mechanism for finely moving a portion of an objective lens by rotating a holding member

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB362789A (en) * 1931-03-03 1931-12-10 Preston Tyre Re Rubbering Comp Device for projecting pictures to variable sizes
FR725513A (fr) * 1931-10-31 1932-05-13 Appareil de publicité et d'indication de l'heure
CH321153A (de) * 1954-05-31 1957-04-30 Schiltknecht Ernst Flab-Projektor
FR1138364A (fr) * 1955-09-23 1957-06-13 Thomson Houston Comp Francaise Dispositif perfectionné de mise au point, pour caméras à plusieurs objectifs de distances focales différentes
FR1214295A (fr) * 1958-10-29 1960-04-07 Thomson Houston Comp Francaise Commande automatique double

Also Published As

Publication number Publication date
AT209069B (de) 1960-05-10
DE1127703B (de) 1962-04-12
GB943409A (en) 1963-12-04
FR1244740A (fr) 1960-10-28
CH374218A (de) 1963-12-31
US3059534A (en) 1962-10-23

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