FR867416A - Adjustable diaphragm - Google Patents

Adjustable diaphragm

Info

Publication number
FR867416A
FR867416A FR867416DA FR867416A FR 867416 A FR867416 A FR 867416A FR 867416D A FR867416D A FR 867416DA FR 867416 A FR867416 A FR 867416A
Authority
FR
France
Prior art keywords
adjustable diaphragm
diaphragm
adjustable
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)
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 Pathe SA
Original Assignee
Kodak Pathe 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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR867416A publication Critical patent/FR867416A/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)
FR867416D 1939-03-09 1940-03-09 Adjustable diaphragm Expired FR867416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US867416XA 1939-03-09 1939-03-09

Publications (1)

Publication Number Publication Date
FR867416A true FR867416A (en) 1941-10-27

Family

ID=22200587

Family Applications (1)

Application Number Title Priority Date Filing Date
FR867416D Expired FR867416A (en) 1939-03-09 1940-03-09 Adjustable diaphragm

Country Status (1)

Country Link
FR (1) FR867416A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1109028B (en) * 1958-10-24 1961-06-15 Optische Werke Steinheil Gmbh Photoelectric shutter arrangement
DE1121921B (en) * 1962-01-11 Ferdinand Royet Samt Etienne Loire Paul (Frankreich) Flush control for photo and kmogeratc
DE1188931B (en) * 1957-06-22 1965-03-11 Agfa Ag Photoelectric device for the automatic control of a diaphragm arranged in the objective beam path of a photographic device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121921B (en) * 1962-01-11 Ferdinand Royet Samt Etienne Loire Paul (Frankreich) Flush control for photo and kmogeratc
DE1188931B (en) * 1957-06-22 1965-03-11 Agfa Ag Photoelectric device for the automatic control of a diaphragm arranged in the objective beam path of a photographic device
DE1109028B (en) * 1958-10-24 1961-06-15 Optische Werke Steinheil Gmbh Photoelectric shutter arrangement

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