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GB911824A - Photographic camera - Google Patents

Photographic camera

Info

Publication number
GB911824A
GB911824A GB15035/59A GB1503559A GB911824A GB 911824 A GB911824 A GB 911824A GB 15035/59 A GB15035/59 A GB 15035/59A GB 1503559 A GB1503559 A GB 1503559A GB 911824 A GB911824 A GB 911824A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
ring
pin
exposure
setting
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
GB15035/59A
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.)
Agfa Gevaert NV
Original Assignee
Agfa AG
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 Agfa AG filed Critical Agfa AG
Publication of GB911824A publication Critical patent/GB911824A/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
    • G03B7/003—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly setting of both shutter and diaphragm
    • 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
    • G03B7/14—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 setting of both shutter and diaphragm aperture being effected so as to give the optimum compromise between depth of field and shortness of exposure

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

911,824. Photographic cameras. AGFA A.G. May 1, 1959 [May 2, 1958], No. 15035/59. Class 98 (1). [Also in Group XL (b)] A camera having an automatic exposure regulating device includes transmission means arranged to derive movement from a manual release member and connected either to diaphragm or shutter speed setting means, both setting means being interconnected by means adapted, when the one of the interconnected means connected to the transmission means has reached the end of its range of setting movement, to lock the interconnected means together for common movement in which the second of the interconnected means enters a range of setting movement, the exposure regulating device being arranged to arrest the transmission means in a position in which the exposure set thereby corresponds to the measured light intensity, and the manual release member being arranged for continued movement, after arrest of the transmission means, to release the shutter. In the embodiment shutter speed setting ring 6 carries a pin 7 penetrating a slot 8 in diaphragm setting ring 5. Member 12 is displaceable in direction X by a knob 13 and is further connected to a photo-electric exposure regulator to move in direction X, as described in Specification 888,973, independently of the path of knob 13. A pin 16, attached to a shutter housing, penetrates a slot 17 in the diaphragm setting ring and the pin serves to anchor a return spring 18 connected by pin 19 to the diaphragm ring. As illustrated the diaphragm ring is set to the widest aperture and the shutter ring to the lowest speed. On depression of knob 13 the exposure regulator is brought into operation to control member 12 and shutter speed is varied by ensuring clockwise movement of pin 7. With high ambient light, member 12 is displaced further and pin 7, after reaching the end of guide 8, moves the diaphragm setting ring to adjust to a smaller aperture whilst the exposure time remains at its lowest value. After exposure, member 12 and therewith the shutter speed setting ring are returned to their original positions by spring 15, and the diaphragm setting ring is restored by spring 18.
GB15035/59A 1958-05-02 1959-05-01 Photographic camera Expired GB911824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA29389A DE1175981B (en) 1958-05-02 1958-05-02 Camera with exposure control device

Publications (1)

Publication Number Publication Date
GB911824A true GB911824A (en) 1962-11-28

Family

ID=6926911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15035/59A Expired GB911824A (en) 1958-05-02 1959-05-01 Photographic camera

Country Status (3)

Country Link
CH (1) CH370312A (en)
DE (1) DE1175981B (en)
GB (1) GB911824A (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2058531A (en) * 1934-02-08 1936-10-27 Eastman Kodak Co Camera diaphragm control
DE641856C (en) * 1934-08-04 1937-02-15 Walter Benedikt Device for obtaining equally exposed photographic negatives
US2509385A (en) * 1948-06-01 1950-05-30 Jr Theodore Ziaylek Camera shutter and diaphragm control mechanism
DE894047C (en) * 1951-09-29 1953-10-22 Gossen & Co G M B H P Exposure regulator with preselection of an aperture base
DE1027062B (en) * 1954-06-24 1958-03-27 Walter Herterich Exposure control device
GB775704A (en) * 1955-01-05 1957-05-29 Kodak Ltd Improvements in or relating to photographic exposure controlling means

Also Published As

Publication number Publication date
CH370312A (en) 1963-06-30
DE1175981B (en) 1964-08-13

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