JPS5115736B1 - - Google Patents

Info

Publication number
JPS5115736B1
JPS5115736B1 JP46008483A JP848371A JPS5115736B1 JP S5115736 B1 JPS5115736 B1 JP S5115736B1 JP 46008483 A JP46008483 A JP 46008483A JP 848371 A JP848371 A JP 848371A JP S5115736 B1 JPS5115736 B1 JP S5115736B1
Authority
JP
Japan
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.)
Pending
Application number
JP46008483A
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 filed Critical
Priority to JP46008483A priority Critical patent/JPS5115736B1/ja
Priority to DE2203506A priority patent/DE2203506B2/de
Priority to US00224719A priority patent/US3781119A/en
Priority to GB817372A priority patent/GB1361348A/en
Priority to FR7205916A priority patent/FR2126280B1/fr
Publication of JPS5115736B1 publication Critical patent/JPS5115736B1/ja
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Exposure Control For Cameras (AREA)
JP46008483A 1971-02-22 1971-02-22 Pending JPS5115736B1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP46008483A JPS5115736B1 (ja) 1971-02-22 1971-02-22
DE2203506A DE2203506B2 (de) 1971-02-22 1972-01-26 Schaltungsanordnung zur Lichtmessung für eine Einrichtung zur automatischen Belichtungszeitsteuerung in einäugigen Spiegelreflexkameras
US00224719A US3781119A (en) 1971-02-22 1972-02-09 Dual light-measurement and compensation circuitry for cameras
GB817372A GB1361348A (en) 1971-02-22 1972-02-22 Single lens reflex camera having a light measurement circuit
FR7205916A FR2126280B1 (ja) 1971-02-22 1972-02-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46008483A JPS5115736B1 (ja) 1971-02-22 1971-02-22

Publications (1)

Publication Number Publication Date
JPS5115736B1 true JPS5115736B1 (ja) 1976-05-19

Family

ID=11694340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46008483A Pending JPS5115736B1 (ja) 1971-02-22 1971-02-22

Country Status (5)

Country Link
US (1) US3781119A (ja)
JP (1) JPS5115736B1 (ja)
DE (1) DE2203506B2 (ja)
FR (1) FR2126280B1 (ja)
GB (1) GB1361348A (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4970625A (ja) * 1972-11-09 1974-07-09
JPS4977628A (ja) * 1972-11-29 1974-07-26
US4095241A (en) * 1973-04-11 1978-06-13 Canon Kabushiki Kaisha Photo-sensing circuit
JPS51134126A (en) * 1975-05-16 1976-11-20 Nippon Kogaku Kk <Nikon> Light measure device for the camera
US4035634A (en) * 1975-10-31 1977-07-12 Fuji Shashin Koki Kabushiki Kaisha Light receptor device
US4168125A (en) * 1975-12-10 1979-09-18 General Energy Development Corporation Light sensing device
JPS5690226A (en) * 1979-12-25 1981-07-22 Olympus Optical Co Ltd Photoelectric conversion circuit
JPS5756828A (en) * 1980-09-22 1982-04-05 Olympus Optical Co Ltd Automatic exposure control camera
JPS5845523A (ja) * 1981-09-11 1983-03-16 Olympus Optical Co Ltd 測光回路
JPS5946521A (ja) * 1982-09-08 1984-03-15 Canon Inc 測光回路
DE3604971A1 (de) * 1986-02-17 1987-08-20 Messerschmitt Boelkow Blohm Photosensoreinrichtung mit dunkelstromkompensation
US4973833A (en) * 1988-09-28 1990-11-27 Minolta Camera Kabushiki Kaisha Image sensor including logarithmic converters
US7796173B2 (en) * 2003-08-13 2010-09-14 Lettvin Jonathan D Imaging system
WO2005050392A2 (en) * 2003-11-17 2005-06-02 Lettvin Jonathan D Geometric remapping with delay lines

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4726288U (ja) * 1971-04-12 1972-11-24

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232192A (en) * 1963-02-20 1966-02-01 Eastman Kodak Co Photographic exposure measuring device
US3582220A (en) * 1968-02-21 1971-06-01 Asahi Optical Co Ltd Light contrast meter for measuring the difference between maximum light intensity and immediately incident light intensity or other intensity
DE1942285A1 (de) * 1969-08-20 1971-03-04 Agfa Gevaert Ag Fotografische Kamera mit einer elektronischen Belichtungssteuereinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4726288U (ja) * 1971-04-12 1972-11-24

Also Published As

Publication number Publication date
DE2203506B2 (de) 1974-03-14
DE2203506A1 (de) 1972-09-07
US3781119A (en) 1973-12-25
GB1361348A (en) 1974-07-24
FR2126280A1 (ja) 1972-10-06
FR2126280B1 (ja) 1976-06-11
DE2203506C3 (ja) 1974-10-24

Similar Documents

Publication Publication Date Title
FR2126280B1 (ja)
AU2658571A (ja)
AU2691671A (ja)
AU2952271A (ja)
AU2684071A (ja)
AU2742671A (ja)
AU2894671A (ja)
JPS4726288U (ja)
AU2941471A (ja)
AU3005371A (ja)
AU465418B2 (ja)
AU2836771A (ja)
AU2885171A (ja)
AU2588771A (ja)
AU2654071A (ja)
AU2669471A (ja)
AU3038671A (ja)
AU3025871A (ja)
AU2486471A (ja)
AU2684171A (ja)
AU2963771A (ja)
AU2706571A (ja)
AU2938071A (ja)
AU2930871A (ja)
AU2724971A (ja)