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CH374218A - Einstellgetriebe für Objektive - Google Patents

Einstellgetriebe für Objektive

Info

Publication number
CH374218A
CH374218A CH8202259A CH8202259A CH374218A CH 374218 A CH374218 A CH 374218A CH 8202259 A CH8202259 A CH 8202259A CH 8202259 A CH8202259 A CH 8202259A CH 374218 A CH374218 A CH 374218A
Authority
CH
Switzerland
Prior art keywords
lenses
adjustment gear
gear
adjustment
Prior art date
Application number
CH8202259A
Other languages
English (en)
Inventor
Keznickl Eduard
Original Assignee
Handler Alois
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 Handler Alois, Vockenhuber Karl filed Critical Handler Alois
Publication of CH374218A publication Critical patent/CH374218A/de

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)
CH8202259A 1959-01-08 1959-12-17 Einstellgetriebe für Objektive CH374218A (de)

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
CH374218A true CH374218A (de) 1963-12-31

Family

ID=3482013

Family Applications (1)

Application Number Title Priority Date Filing Date
CH8202259A CH374218A (de) 1959-01-08 1959-12-17 Einstellgetriebe für Objektive

Country Status (7)

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

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 (de) * 1963-02-22
JPS50122209A (de) * 1974-02-18 1975-09-25
JPH0455014U (de) * 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
BE586289A (fr) 1960-05-03
US3059534A (en) 1962-10-23

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