GB909803A - Improvements relating to photographic or cinematographic cameras having a view finder and a photo-electric exposure meter - Google Patents

Improvements relating to photographic or cinematographic cameras having a view finder and a photo-electric exposure meter

Info

Publication number
GB909803A
GB909803A GB4196559A GB4196559A GB909803A GB 909803 A GB909803 A GB 909803A GB 4196559 A GB4196559 A GB 4196559A GB 4196559 A GB4196559 A GB 4196559A GB 909803 A GB909803 A GB 909803A
Authority
GB
United Kingdom
Prior art keywords
viewfinder
photographic
photo
pointer
exposure meter
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
GB4196559A
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.)
MEOPTA PREROV
Original Assignee
MEOPTA PREROV
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 MEOPTA PREROV filed Critical MEOPTA PREROV
Publication of GB909803A publication Critical patent/GB909803A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
    • G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking apparatus
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/06—Bodies with exposure meters or other indicators built into body but not connected to other camera members
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/08—Waterproof bodies or housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Viewfinders (AREA)

Abstract

909,803. Photographic or cinematographic cameras with exposure meters and viewfinders. MEOPTA PREROV, NARODNI PODNIK. Dec. 10, 1959 [Dec. 10, 1958], No. 41965/59. Classes 97 (1) and 98 (1). A photographic or cinematographic camera has a viewfinder and a photo-electric exposure meter wherein the viewfinder and exposure meter are combined to form a single unit which can be swung in a plane containing the optical axis of the camera lens. In the camera shown, a diaphragm 4 is connected through a gear train to a diaphragm 9 which controls the amount of light reaching a photo-cell 10. This photocell is connected by leads 12 to a galvanometer 13, the pointer 15 of which is visible in the field of a viewfinder 16. An index 18 is pivotable about a pin 19 in accordance with a film sensitivity scale 19a. The pointer is brought into correspondence with the index 18 by moving a handle 21 mounted on the shaft of one of the gear-wheels thereby adjusting diaphragms 4, 9 as well as the pointer. If the object is nearer than 1.5 m. the viewfinder, together with the galvanometer 13 is rotated about a pivot 30 by means of a rod 27 connected at one end to a pin 29 on the viewfinder and at the other end to a slide 22 movable along a scale indicating distance values. A locking device for the slide 22 comprises a button 23 having a thicker portion, said button being normally urged by spring 37 so that the thicker portion engages one of a series of recesses in the plate 22. Specification 429,676 is referred to.
GB4196559A 1958-12-10 1959-12-10 Improvements relating to photographic or cinematographic cameras having a view finder and a photo-electric exposure meter Expired GB909803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS637558 1958-12-10

Publications (1)

Publication Number Publication Date
GB909803A true GB909803A (en) 1962-11-07

Family

ID=5410630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4196559A Expired GB909803A (en) 1958-12-10 1959-12-10 Improvements relating to photographic or cinematographic cameras having a view finder and a photo-electric exposure meter

Country Status (4)

Country Link
CH (1) CH378149A (en)
DE (1) DE1203597B (en)
FR (1) FR1247532A (en)
GB (1) GB909803A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB429676A (en) * 1934-01-23 1935-06-05 George Alexander Ross Improvements in means for automatically regulating the diaphragm aperture in photographic apparatus
DE726708C (en) * 1937-11-17 1942-10-19 Jacques Moreau Photographic or cinematographic camera with interchangeable lenses and viewfinder with adjustable field of view
DE735412C (en) * 1938-01-01 1943-05-18 Suzanne Rosalie Jourjon Geb Ma Sighting device for cinematographic recording devices

Also Published As

Publication number Publication date
FR1247532A (en) 1960-12-02
DE1203597B (en) 1965-10-21
CH378149A (en) 1964-05-31

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