FR802940A - Device for the automatic adjustment of exposure time in photographic or similar cameras - Google Patents

Device for the automatic adjustment of exposure time in photographic or similar cameras

Info

Publication number
FR802940A
FR802940A FR802940DA FR802940A FR 802940 A FR802940 A FR 802940A FR 802940D A FR802940D A FR 802940DA FR 802940 A FR802940 A FR 802940A
Authority
FR
France
Prior art keywords
photographic
exposure time
automatic adjustment
similar cameras
cameras
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
Other languages
French (fr)
Inventor
Heinrich Blechner
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 filed Critical
Application granted granted Critical
Publication of FR802940A publication Critical patent/FR802940A/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)
FR802940D 1935-02-28 1936-02-28 Device for the automatic adjustment of exposure time in photographic or similar cameras Expired FR802940A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT802940X 1935-02-28

Publications (1)

Publication Number Publication Date
FR802940A true FR802940A (en) 1936-09-18

Family

ID=3681171

Family Applications (1)

Application Number Title Priority Date Filing Date
FR802940D Expired FR802940A (en) 1935-02-28 1936-02-28 Device for the automatic adjustment of exposure time in photographic or similar cameras

Country Status (1)

Country Link
FR (1) FR802940A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2930282A (en) * 1955-04-05 1960-03-29 Herterich Walter Exposure metering device
US2968227A (en) * 1955-03-09 1961-01-17 Voigtlaender Ag Photoelectric exposure meter
US2972289A (en) * 1955-05-28 1961-02-21 Voigtlaender Ag Photographic camera
US3060820A (en) * 1955-08-19 1962-10-30 Edwards Robert Automatic photographic shutter
DE1220251B (en) * 1956-08-23 1966-06-30 Minnesota Mining & Mfg Motorized film camera with an exposure controller
DE1245717B (en) * 1959-03-25 1967-07-27 Prontor Werk Gauthier Gmbh Photographic camera with adjustable setting device for aperture and time in the sense of a uniform exposure value graduation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968227A (en) * 1955-03-09 1961-01-17 Voigtlaender Ag Photoelectric exposure meter
US2930282A (en) * 1955-04-05 1960-03-29 Herterich Walter Exposure metering device
US2972289A (en) * 1955-05-28 1961-02-21 Voigtlaender Ag Photographic camera
US3060820A (en) * 1955-08-19 1962-10-30 Edwards Robert Automatic photographic shutter
DE1220251B (en) * 1956-08-23 1966-06-30 Minnesota Mining & Mfg Motorized film camera with an exposure controller
DE1245717B (en) * 1959-03-25 1967-07-27 Prontor Werk Gauthier Gmbh Photographic camera with adjustable setting device for aperture and time in the sense of a uniform exposure value graduation

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