FR2478834A1 - Dispositif de mesure photometrique pour le reglage automatique de la quantite de lumiere penetrant dans un appareil de prise de vues - Google Patents

Dispositif de mesure photometrique pour le reglage automatique de la quantite de lumiere penetrant dans un appareil de prise de vues Download PDF

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Publication number
FR2478834A1
FR2478834A1 FR8006363A FR8006363A FR2478834A1 FR 2478834 A1 FR2478834 A1 FR 2478834A1 FR 8006363 A FR8006363 A FR 8006363A FR 8006363 A FR8006363 A FR 8006363A FR 2478834 A1 FR2478834 A1 FR 2478834A1
Authority
FR
France
Prior art keywords
camera
signal
output
circuit
input
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.)
Granted
Application number
FR8006363A
Other languages
English (en)
French (fr)
Other versions
FR2478834B1 (enExample
Inventor
Jean-Pierre Beauviala
Jean-Pierre Charras
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.)
Aaton SA
Original Assignee
Aaton SA
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 Aaton SA filed Critical Aaton SA
Priority to FR8006363A priority Critical patent/FR2478834A1/fr
Priority to DE19813110802 priority patent/DE3110802A1/de
Publication of FR2478834A1 publication Critical patent/FR2478834A1/fr
Application granted granted Critical
Publication of FR2478834B1 publication Critical patent/FR2478834B1/fr
Granted legal-status Critical Current

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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
    • G03B7/091—Digital circuits
    • G03B7/097—Digital circuits for control of both exposure time and aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
FR8006363A 1980-03-21 1980-03-21 Dispositif de mesure photometrique pour le reglage automatique de la quantite de lumiere penetrant dans un appareil de prise de vues Granted FR2478834A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8006363A FR2478834A1 (fr) 1980-03-21 1980-03-21 Dispositif de mesure photometrique pour le reglage automatique de la quantite de lumiere penetrant dans un appareil de prise de vues
DE19813110802 DE3110802A1 (de) 1980-03-21 1981-03-19 "lichtmess- und steuervorrichtung"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8006363A FR2478834A1 (fr) 1980-03-21 1980-03-21 Dispositif de mesure photometrique pour le reglage automatique de la quantite de lumiere penetrant dans un appareil de prise de vues

Publications (2)

Publication Number Publication Date
FR2478834A1 true FR2478834A1 (fr) 1981-09-25
FR2478834B1 FR2478834B1 (enExample) 1984-07-13

Family

ID=9239955

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8006363A Granted FR2478834A1 (fr) 1980-03-21 1980-03-21 Dispositif de mesure photometrique pour le reglage automatique de la quantite de lumiere penetrant dans un appareil de prise de vues

Country Status (2)

Country Link
DE (1) DE3110802A1 (enExample)
FR (1) FR2478834A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922451C2 (de) * 1989-07-07 1995-06-01 Lemke Gmbh Fernsehkamera

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3586773A (en) * 1969-02-24 1971-06-22 Westinghouse Electric Corp Television image tube protection system
FR2173537A5 (enExample) * 1972-02-22 1973-10-05 Eastman Kodak Co
FR2225734A1 (enExample) * 1972-12-01 1974-11-08 Reichert Optische Werke Ag
DE2514230A1 (de) * 1974-04-01 1975-10-09 Canon Kk System zur belichtungsmessung und/oder zur scharfstellermittlung mit hilfe eines bildsensors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3586773A (en) * 1969-02-24 1971-06-22 Westinghouse Electric Corp Television image tube protection system
FR2173537A5 (enExample) * 1972-02-22 1973-10-05 Eastman Kodak Co
FR2225734A1 (enExample) * 1972-12-01 1974-11-08 Reichert Optische Werke Ag
DE2514230A1 (de) * 1974-04-01 1975-10-09 Canon Kk System zur belichtungsmessung und/oder zur scharfstellermittlung mit hilfe eines bildsensors
DE2559559A1 (de) * 1974-04-01 1977-06-16 Canon Kk Kamera mit belichtungsmessystem

Also Published As

Publication number Publication date
FR2478834B1 (enExample) 1984-07-13
DE3110802A1 (de) 1982-01-07

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