GB775606A - Photographic cameras - Google Patents

Photographic cameras

Info

Publication number
GB775606A
GB775606A GB4817/55A GB481755A GB775606A GB 775606 A GB775606 A GB 775606A GB 4817/55 A GB4817/55 A GB 4817/55A GB 481755 A GB481755 A GB 481755A GB 775606 A GB775606 A GB 775606A
Authority
GB
United Kingdom
Prior art keywords
plates
objective
focusing
camera
displacement
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
GB4817/55A
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.)
KAMERABAU ANSTALT
Original Assignee
KAMERABAU ANSTALT
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 KAMERABAU ANSTALT filed Critical KAMERABAU ANSTALT
Publication of GB775606A publication Critical patent/GB775606A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/40—Optical focusing aids
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Viewfinders (AREA)

Abstract

775,606. Lens mounts, photographic cameras. KAMERABAU ANSTALT. Feb. 17. 1955 [Feb. 17, 1954], No. 4817/55. Classes 97(1) and 98(2). In a photographic camera the objective is supported by a number of resilient arms so that, on focusing, the optical axis is displaced parallel to itself. Preferably, the resilient arms are spring plates 1, 2. To minimize the displacement of the optical axis O, the range of displacement of the objective 5 may be symmetrical about a central position in which the plates 1, 2 are vertical. Alternatively, the plates 1, 2 may be vertical when the camera is focused for parallel light and, the displacement of the optical axis, on focusing for near objects, used to partially compensate for parallase in a view finder. The plates 1, 2 may be apertured as at 7 and 8 for the viewfinder on a range finder. They are also apertured when they extend for the full width of the camera and the objective 5 is carried between them. In a stereoscopic camera the plates 1, 2 may be arranged between the objectives. The plates 1, 2 are sprung so that they press the objective carrier 3 into contact with a focusing screw or cam in all focusing positions.
GB4817/55A 1954-02-17 1955-02-17 Photographic cameras Expired GB775606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE775606X 1954-02-17

Publications (1)

Publication Number Publication Date
GB775606A true GB775606A (en) 1957-05-29

Family

ID=6686336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4817/55A Expired GB775606A (en) 1954-02-17 1955-02-17 Photographic cameras

Country Status (1)

Country Link
GB (1) GB775606A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163867A (en) * 1984-08-29 1986-03-05 Atomic Energy Authority Uk Stereo camera lens mount

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163867A (en) * 1984-08-29 1986-03-05 Atomic Energy Authority Uk Stereo camera lens mount
US4725863A (en) * 1984-08-29 1988-02-16 United Kingdom Atomic Energy Authority Stereo camera

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