FR2136493A5 - - Google Patents

Info

Publication number
FR2136493A5
FR2136493A5 FR7213572A FR7213572A FR2136493A5 FR 2136493 A5 FR2136493 A5 FR 2136493A5 FR 7213572 A FR7213572 A FR 7213572A FR 7213572 A FR7213572 A FR 7213572A FR 2136493 A5 FR2136493 A5 FR 2136493A5
Authority
FR
France
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
FR7213572A
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to FR7213572A priority Critical patent/FR2136493A5/fr
Application granted granted Critical
Publication of FR2136493A5 publication Critical patent/FR2136493A5/fr
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
    • G03B7/083—Analogue circuits for control of exposure time
    • 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
    • G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR7213572A 1972-04-18 1972-04-18 Expired FR2136493A5 (en:Method)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7213572A FR2136493A5 (en:Method) 1972-04-18 1972-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7213572A FR2136493A5 (en:Method) 1972-04-18 1972-04-18

Publications (1)

Publication Number Publication Date
FR2136493A5 true FR2136493A5 (en:Method) 1972-12-22

Family

ID=9097046

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7213572A Expired FR2136493A5 (en:Method) 1972-04-18 1972-04-18

Country Status (1)

Country Link
FR (1) FR2136493A5 (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047892A1 (de) * 1980-09-11 1982-03-24 Robert Bosch Gmbh Elektronenblitzgerät mit automatischer Blitzlichtmengenbegrenzung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047892A1 (de) * 1980-09-11 1982-03-24 Robert Bosch Gmbh Elektronenblitzgerät mit automatischer Blitzlichtmengenbegrenzung

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Legal Events

Date Code Title Description
ST Notification of lapse