GB943412A - Improvements in or relating to photographic cameras - Google Patents

Improvements in or relating to photographic cameras

Info

Publication number
GB943412A
GB943412A GB1233960A GB1233960A GB943412A GB 943412 A GB943412 A GB 943412A GB 1233960 A GB1233960 A GB 1233960A GB 1233960 A GB1233960 A GB 1233960A GB 943412 A GB943412 A GB 943412A
Authority
GB
United Kingdom
Prior art keywords
aperture
masking member
exposure
april
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
GB1233960A
Inventor
Max Bideau
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 GB943412A publication Critical patent/GB943412A/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
    • G03B7/081—Analogue circuits
    • G03B7/085—Analogue circuits for control of aperture

Landscapes

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

Abstract

943,412. Photographic cameras. KODAK Ltd. April 7, 1960 [April 8, 1959] No. 12339/60. Heading G2A. In a photographic camera provided with an exposure meter connected to a masking member having an aperture of varying width for automatically adjusting the effective area of the exposure aperture as a function of the intensity of the light illuminating a scene to be photographed, a separate manually operable ma sking means providing an aperture in alignment with the aperture of the first masking member and serving to vary the amount of light passing through the exposure aperture as a function of the shutter speed and/or film sensitivity is provided. In one embodiment Fig. 1 a toothed sector 1, connected to the movable frame 2 of a galvanometer energized by a photo-cell, engages a masking member 4 having a variablewidth aperture 5; manually operable disc 8 has an aperture 9 and carries a shutter speed scale 11. The apertures may be stepped, Fig. 2 (not shown). Member 4 may be directly carried by frame 2, Figs. 3, 4, 5 (none shown).
GB1233960A 1959-04-08 1960-04-07 Improvements in or relating to photographic cameras Expired GB943412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR791560A FR1231172A (en) 1959-04-08 1959-04-08 Camera with automatic exposure adjustment

Publications (1)

Publication Number Publication Date
GB943412A true GB943412A (en) 1963-12-04

Family

ID=8713424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233960A Expired GB943412A (en) 1959-04-08 1960-04-07 Improvements in or relating to photographic cameras

Country Status (2)

Country Link
FR (1) FR1231172A (en)
GB (1) GB943412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866129A1 (en) * 2004-02-05 2005-08-12 Quantificare Object surface calibrated view capturing device for tracking cutaneous cancer, has frame affixed on surface of object and including hollow aperture to view surface, and mirror system aligning frame apexes with apexes of photographic image

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866129A1 (en) * 2004-02-05 2005-08-12 Quantificare Object surface calibrated view capturing device for tracking cutaneous cancer, has frame affixed on surface of object and including hollow aperture to view surface, and mirror system aligning frame apexes with apexes of photographic image

Also Published As

Publication number Publication date
FR1231172A (en) 1960-09-27

Similar Documents

Publication Publication Date Title
GB1062578A (en) Photographic camera
GB1078305A (en) Photometric device
GB1098322A (en) Photographic exposure control mechanism
GB1048280A (en) Photographic camera
GB1336536A (en) Single-lens reflex cameras
GB943412A (en) Improvements in or relating to photographic cameras
GB909863A (en) Improvements in photographic cameras, more especially cine-cameras, including photoelectric diaphragm control means
SE321851B (en)
GB1391131A (en) Exposure value indicating means
GB1209551A (en) Single lens reflex camera
GB500188A (en) Improvements in photographic cameras with photo-electric exposure meters
GB1096268A (en) Improvements in or relating to photographic or cinematographic cameras
GB1410067A (en) Light measurement through the objective in a single lens reflex camera
GB938175A (en) Improvements in or relating to photographic cameras
GB958502A (en) Albada finder for photographic cameras
GB1524134A (en) Photographic camera exposure indicating device
GB1032484A (en) Improved photometric apparatus for cameras
GB1110593A (en) Photoelectric device
GB1215744A (en) Photographic camera
GB868576A (en) Improvements in or relating to a photographic camera provided with automatic exposure control means
GB1037345A (en) Photographic exposure meter, more particularly for flashlight photography
GB1531683A (en) Photographic camera including exposure measuring apparatu
GB1044162A (en) Photographic or cinematographic camera
GB941856A (en) Improvements in or relating to a measuring or regulating device
GB1060080A (en) Photographic and cinematographic cameras