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FR1293078A - Automatic diaphragm for photographic and cinematographic cameras - Google Patents

Automatic diaphragm for photographic and cinematographic cameras

Info

Publication number
FR1293078A
FR1293078A FR8182A FR42008182A FR1293078A FR 1293078 A FR1293078 A FR 1293078A FR 8182 A FR8182 A FR 8182A FR 42008182 A FR42008182 A FR 42008182A FR 1293078 A FR1293078 A FR 1293078A
Authority
FR
France
Prior art keywords
photographic
automatic diaphragm
cinematographic cameras
cinematographic
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
FR8182A
Other languages
French (fr)
Inventor
Paul Ferdinand Royet
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
Priority to FR8182A priority Critical patent/FR1293078A/en
Application granted granted Critical
Publication of FR1293078A publication Critical patent/FR1293078A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B7/00Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08Control 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
    • G03B7/12Control 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)
FR8182A 1961-03-27 1961-03-27 Automatic diaphragm for photographic and cinematographic cameras Expired FR1293078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8182A FR1293078A (en) 1961-03-27 1961-03-27 Automatic diaphragm for photographic and cinematographic cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8182A FR1293078A (en) 1961-03-27 1961-03-27 Automatic diaphragm for photographic and cinematographic cameras

Publications (1)

Publication Number Publication Date
FR1293078A true FR1293078A (en) 1962-05-11

Family

ID=8573037

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8182A Expired FR1293078A (en) 1961-03-27 1961-03-27 Automatic diaphragm for photographic and cinematographic cameras

Country Status (1)

Country Link
FR (1) FR1293078A (en)

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