FR2241804B1 - - Google Patents

Info

Publication number
FR2241804B1
FR2241804B1 FR7428978A FR7428978A FR2241804B1 FR 2241804 B1 FR2241804 B1 FR 2241804B1 FR 7428978 A FR7428978 A FR 7428978A FR 7428978 A FR7428978 A FR 7428978A FR 2241804 B1 FR2241804 B1 FR 2241804B1
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
FR7428978A
Other languages
French (fr)
Other versions
FR2241804A1 (de
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.)
Seiko Koki KK
Original Assignee
Seiko Koki KK
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 Seiko Koki KK filed Critical Seiko Koki KK
Publication of FR2241804A1 publication Critical patent/FR2241804A1/fr
Application granted granted Critical
Publication of FR2241804B1 publication Critical patent/FR2241804B1/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
    • G03B7/091—Digital circuits
    • G03B7/093—Digital 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)
  • Stroboscope Apparatuses (AREA)
  • Shutter-Related Mechanisms (AREA)
FR7428978A 1973-08-24 1974-08-23 Expired FR2241804B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48095004A JPS5044822A (de) 1973-08-24 1973-08-24

Publications (2)

Publication Number Publication Date
FR2241804A1 FR2241804A1 (de) 1975-03-21
FR2241804B1 true FR2241804B1 (de) 1982-03-05

Family

ID=14125750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7428978A Expired FR2241804B1 (de) 1973-08-24 1974-08-23

Country Status (4)

Country Link
JP (1) JPS5044822A (de)
DE (1) DE2440731A1 (de)
FR (1) FR2241804B1 (de)
GB (1) GB1463859A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54145526A (en) * 1978-05-04 1979-11-13 Olympus Optical Co Ltd Camera information display device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110981B2 (de) * 1971-08-30 1976-04-08

Also Published As

Publication number Publication date
FR2241804A1 (de) 1975-03-21
JPS5044822A (de) 1975-04-22
DE2440731A1 (de) 1975-03-06
GB1463859A (en) 1977-02-09

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Legal Events

Date Code Title Description
ST Notification of lapse