FR1182694A - Control of diaphragms for photographic and cinematographic cameras - Google Patents

Control of diaphragms for photographic and cinematographic cameras

Info

Publication number
FR1182694A
FR1182694A FR1182694DA FR1182694A FR 1182694 A FR1182694 A FR 1182694A FR 1182694D A FR1182694D A FR 1182694DA FR 1182694 A FR1182694 A FR 1182694A
Authority
FR
France
Prior art keywords
diaphragms
photographic
control
cinematographic cameras
cinematographic
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
Knut Schaefer
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 FR1182694A publication Critical patent/FR1182694A/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)
FR1182694D 1956-09-13 1957-09-13 Control of diaphragms for photographic and cinematographic cameras Expired FR1182694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1182694X 1956-09-13

Publications (1)

Publication Number Publication Date
FR1182694A true FR1182694A (en) 1959-06-26

Family

ID=7730439

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1182694D Expired FR1182694A (en) 1956-09-13 1957-09-13 Control of diaphragms for photographic and cinematographic cameras

Country Status (1)

Country Link
FR (1) FR1182694A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116673A (en) * 1961-07-27 1964-01-07 Bogopolsky Raphael Automatic regulating device for the lighting of a photo-sensitive film during filming
US3177789A (en) * 1961-02-27 1965-04-13 Weston Instruments Inc Diaphragm control arrangement
DE1256537B (en) * 1959-07-17 1967-12-14 Eastman Kodak Co Device for automatic exposure adjustment on photographic recording devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256537B (en) * 1959-07-17 1967-12-14 Eastman Kodak Co Device for automatic exposure adjustment on photographic recording devices
US3177789A (en) * 1961-02-27 1965-04-13 Weston Instruments Inc Diaphragm control arrangement
US3116673A (en) * 1961-07-27 1964-01-07 Bogopolsky Raphael Automatic regulating device for the lighting of a photo-sensitive film during filming

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