FR2233649A1 - - Google Patents

Info

Publication number
FR2233649A1
FR2233649A1 FR7420337A FR7420337A FR2233649A1 FR 2233649 A1 FR2233649 A1 FR 2233649A1 FR 7420337 A FR7420337 A FR 7420337A FR 7420337 A FR7420337 A FR 7420337A FR 2233649 A1 FR2233649 A1 FR 2233649A1
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.)
Granted
Application number
FR7420337A
Other languages
French (fr)
Other versions
FR2233649B1 (en
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of FR2233649A1 publication Critical patent/FR2233649A1/fr
Application granted granted Critical
Publication of FR2233649B1 publication Critical patent/FR2233649B1/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
FR7420337A 1973-06-16 1974-06-12 Expired FR2233649B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732330734 DE2330734A1 (en) 1973-06-16 1973-06-16 ELECTRONIC EXPOSURE CONTROL DEVICE

Publications (2)

Publication Number Publication Date
FR2233649A1 true FR2233649A1 (en) 1975-01-10
FR2233649B1 FR2233649B1 (en) 1978-01-13

Family

ID=5884203

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7420337A Expired FR2233649B1 (en) 1973-06-16 1974-06-12

Country Status (5)

Country Link
JP (1) JPS5037432A (en)
DE (1) DE2330734A1 (en)
FR (1) FR2233649B1 (en)
GB (1) GB1476344A (en)
HK (1) HK11278A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52149487U (en) * 1976-05-10 1977-11-12
US4249109A (en) * 1979-01-04 1981-02-03 Rollei Of America, Inc. Light digitizing circuit for an electronic flash device
US4297011A (en) 1979-05-10 1981-10-27 Rollei Of America, Inc. Photoflash device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727526A (en) * 1969-02-11 1973-04-17 Vickers Ltd Photographic exposure control arrangement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727526A (en) * 1969-02-11 1973-04-17 Vickers Ltd Photographic exposure control arrangement

Also Published As

Publication number Publication date
HK11278A (en) 1978-03-10
JPS5037432A (en) 1975-04-08
GB1476344A (en) 1977-06-10
FR2233649B1 (en) 1978-01-13
DE2330734A1 (en) 1975-01-09

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Legal Events

Date Code Title Description
ST Notification of lapse