JPS5018081A - - Google Patents

Info

Publication number
JPS5018081A
JPS5018081A JP48069025A JP6902573A JPS5018081A JP S5018081 A JPS5018081 A JP S5018081A JP 48069025 A JP48069025 A JP 48069025A JP 6902573 A JP6902573 A JP 6902573A JP S5018081 A JPS5018081 A JP S5018081A
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.)
Granted
Application number
JP48069025A
Other languages
Japanese (ja)
Other versions
JPS5434552B2 (en]
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 JP6902573A priority Critical patent/JPS5434552B2/ja
Priority to DE2463098A priority patent/DE2463098C2/de
Priority to DE2428938A priority patent/DE2428938C2/de
Priority to US480395A priority patent/US3909137A/en
Publication of JPS5018081A publication Critical patent/JPS5018081A/ja
Publication of JPS5434552B2 publication Critical patent/JPS5434552B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J1/46—Electric circuits using a capacitor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Exposure Control For Cameras (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
JP6902573A 1973-06-18 1973-06-18 Expired JPS5434552B2 (en])

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6902573A JPS5434552B2 (en]) 1973-06-18 1973-06-18
DE2463098A DE2463098C2 (de) 1973-06-18 1974-06-15 Digitaler Belichtungsmesser für die Photographie
DE2428938A DE2428938C2 (de) 1973-06-18 1974-06-15 Digitaler Belichtungsmesser für die Photographie
US480395A US3909137A (en) 1973-06-18 1974-06-18 Digital indication exposuremeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6902573A JPS5434552B2 (en]) 1973-06-18 1973-06-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP55136031A Division JPS5836299B2 (ja) 1980-09-29 1980-09-29 露出計

Publications (2)

Publication Number Publication Date
JPS5018081A true JPS5018081A (en]) 1975-02-26
JPS5434552B2 JPS5434552B2 (en]) 1979-10-27

Family

ID=13390620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6902573A Expired JPS5434552B2 (en]) 1973-06-18 1973-06-18

Country Status (3)

Country Link
US (1) US3909137A (en])
JP (1) JPS5434552B2 (en])
DE (2) DE2463098C2 (en])

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5167739U (en]) * 1974-11-22 1976-05-28
JPS5225627A (en) * 1975-08-20 1977-02-25 West Electric Co Ltd Exposure means
JPS5275435A (en) * 1975-12-19 1977-06-24 West Electric Co Digital exposure meter
JPS54112629A (en) * 1978-02-22 1979-09-03 Minolta Camera Co Ltd Exposure control value display device
JPS57101932U (en]) * 1981-10-29 1982-06-23
JPS5886532A (ja) * 1982-11-08 1983-05-24 Canon Inc カメラ
JPS59137590A (ja) * 1983-01-27 1984-08-07 ザ．ボ−ア−．ブラザ−ス．コンパニ− セルロース材料の処理装置
JPS60220830A (ja) * 1985-02-18 1985-11-05 Minolta Camera Co Ltd 露出計
JPS60227137A (ja) * 1985-02-18 1985-11-12 Minolta Camera Co Ltd フラツシユ光測定用露出計
JPS62187000U (en]) * 1986-05-16 1987-11-27

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833537B2 (ja) * 1973-01-29 1983-07-20 株式会社リコー 一眼レフレツクスカメラの測光情報表示装置
US4047189A (en) * 1973-02-05 1977-09-06 Ernst Leitz Gmbh Electronic storage, indicator and exposure time control device for photographic cameras
US4054887A (en) * 1973-04-16 1977-10-18 Ernest Leitz Gmbh Exposure control device for photographic cameras
US4032933A (en) * 1974-03-04 1977-06-28 Canon Kabushiki Kaisha Indication system of a camera
JPS5111853U (en]) * 1974-07-12 1976-01-28
US4092652A (en) * 1974-07-27 1978-05-30 Canon Kabushiki Kaisha Exposure information indicating device for a camera
US4149795A (en) * 1974-08-07 1979-04-17 Canon Kabushiki Kaisha Digital information transmitting and displaying system for a photographic camera
US4001846A (en) * 1974-08-09 1977-01-04 Kauneckas John J Recording system for photographic cameras
US4162839A (en) * 1974-08-30 1979-07-31 Canon Kabushiki Kaisha Dual preference camera for digitally displaying preset and computered valves
JPS5127053A (en) * 1974-08-30 1976-03-06 Canon Kk Tanyuryokuyo aad henkansochi
JPS5128727A (en]) * 1974-09-04 1976-03-11 Canon Kk
JPS5132098B2 (en]) * 1974-09-18 1976-09-10
JPS5141522A (en]) * 1974-10-04 1976-04-07 Canon Kk
US4137541A (en) * 1974-10-07 1979-01-30 Canon Kabushiki Kaisha Automatic exposure control apparatus for a single lens reflex camera
JPS5145530A (en]) * 1974-10-17 1976-04-19 Canon Kk
JPS5160240U (en]) * 1974-11-05 1976-05-12
US4028712A (en) * 1974-11-27 1977-06-07 Kanon Kabushiki Kaisha Display system for photographic camera
US4191458A (en) * 1975-09-11 1980-03-04 Canon Kabushiki Kaisha Photographic information setting display circuit
JPS6014331B2 (ja) * 1976-03-05 1985-04-12 日本電気株式会社 電子シヤツタ−カメラにおけるデイジタル的デ−タ処理回路
DE2613154C2 (de) * 1976-03-27 1982-04-08 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum digitalen Anzeigen fotografischer Daten
JPS54106282A (en) * 1978-02-07 1979-08-21 Minolta Camera Co Ltd Photometric method and apparatus
JPS54151444A (en) * 1978-05-20 1979-11-28 Nippon Chemical Ind Power supply control circuit for camera
DE2829656A1 (de) * 1978-07-06 1980-01-17 Rollei Werke Franke Heidecke Schaltungsanordnung zur belichtungszeitmessung und/oder belichtungszeitsteuerung fuer eine fotografische kamera
US4433914A (en) 1979-09-14 1984-02-28 Vivitar Corporation Exposure meter
US4356393A (en) * 1980-05-29 1982-10-26 Banner Engineering Corp. Alignment indicator for photoelectric scanners
DE3111417A1 (de) * 1981-03-24 1982-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bestrahlungsmesser
US4498140A (en) * 1982-06-02 1985-02-05 Chesley F. Carlson Automated self calibrating exposure computer
CA2127076A1 (en) * 1993-07-01 1995-01-02 Soon-Gil Seo Brightness measuring device for a camera and related control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703130A (en) * 1970-04-06 1972-11-21 Nippon Kogaku Kk Electronic shutter control device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761968A (en) * 1953-01-09 1956-09-04 Milton L Kuder Electronic analogue-to-digital converters
DE1597310C3 (de) * 1966-04-29 1978-05-03 Minolta Camera K.K., Osaka (Japan) Schaltungsanordnung zur Steuerung der Belichtungszeit bei einer einäugigen Spiegelreflexkamera
US3709615A (en) * 1969-02-28 1973-01-09 Calumet Photographic Inc Integrating light meter with movable meter mechanism
US3649128A (en) * 1970-11-27 1972-03-14 Stanley Rothschild System for determining the proper exposure for a photographic surface
JPS5442704Y2 (en]) * 1972-04-14 1979-12-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703130A (en) * 1970-04-06 1972-11-21 Nippon Kogaku Kk Electronic shutter control device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5167739U (en]) * 1974-11-22 1976-05-28
JPS5225627A (en) * 1975-08-20 1977-02-25 West Electric Co Ltd Exposure means
JPS5275435A (en) * 1975-12-19 1977-06-24 West Electric Co Digital exposure meter
JPS54112629A (en) * 1978-02-22 1979-09-03 Minolta Camera Co Ltd Exposure control value display device
JPS57101932U (en]) * 1981-10-29 1982-06-23
JPS5886532A (ja) * 1982-11-08 1983-05-24 Canon Inc カメラ
JPS59137590A (ja) * 1983-01-27 1984-08-07 ザ．ボ−ア−．ブラザ−ス．コンパニ− セルロース材料の処理装置
JPS60220830A (ja) * 1985-02-18 1985-11-05 Minolta Camera Co Ltd 露出計
JPS60227137A (ja) * 1985-02-18 1985-11-12 Minolta Camera Co Ltd フラツシユ光測定用露出計
JPS62187000U (en]) * 1986-05-16 1987-11-27

Also Published As

Publication number Publication date
DE2463098C2 (de) 1986-10-02
DE2428938A1 (de) 1975-01-09
DE2428938C2 (de) 1985-02-28
JPS5434552B2 (en]) 1979-10-27
US3909137A (en) 1975-09-30

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