GB936994A - Improvements in or relating to photographic cameras having automatic exposure control means - Google Patents

Improvements in or relating to photographic cameras having automatic exposure control means

Info

Publication number
GB936994A
GB936994A GB4107959A GB4107959A GB936994A GB 936994 A GB936994 A GB 936994A GB 4107959 A GB4107959 A GB 4107959A GB 4107959 A GB4107959 A GB 4107959A GB 936994 A GB936994 A GB 936994A
Authority
GB
United Kingdom
Prior art keywords
aperture
ring
spring
diaphragm
shutter speed
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
GB4107959A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB936994A publication Critical patent/GB936994A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/12—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device a hand-actuated member moved from one position to another providing the energy to move the setting member, e.g. depression of shutter release button causes a stepped feeler to co-operate with the pointer of the light-sensitive device to set the diaphragm and thereafter release the shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)

Abstract

936,994. Photographic cameras. KODAK Ltd. Dec. 3, 1959 [Dec. 5, 1958], No. 41079/59. Class 98 (1). Setting members for camera diaphragm aperture and shutter speed which are interconnected so that when the shutter speed increases the aperture decreases are set automatically by a spring in accordance with the light value measured by a photo-electric exposure meter on actuation of the camera operating lever. The operating lever 54 is pressed in the direction of the arrow against a spring 58, permitting a weaker spring 70 to rotate a conventional shutter speed ring 68. By co-operation of the arms 66, 62, ring 68 rotates a diaphragm setting ring 60 carrying pins 74, 76 which, co-operating with slots 78, 80 separate the diaphragm vanes 82, 84 forming the aperture 92. The serrated edge 94 of vane 82 is arrested by an arm 18 on a photoelectrically energized moving coil 16. This limits the aperture and determines the speed ring setting. At the end of its travel, lever 54 actuates the shutter release 96.
GB4107959A 1958-12-05 1959-12-03 Improvements in or relating to photographic cameras having automatic exposure control means Expired GB936994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7784258A 1958-12-05 1958-12-05

Publications (1)

Publication Number Publication Date
GB936994A true GB936994A (en) 1963-09-18

Family

ID=22140369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4107959A Expired GB936994A (en) 1958-12-05 1959-12-03 Improvements in or relating to photographic cameras having automatic exposure control means

Country Status (1)

Country Link
GB (1) GB936994A (en)

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