JPS4837644U - - Google Patents

Info

Publication number
JPS4837644U
JPS4837644U JP1971081201U JP8120171U JPS4837644U JP S4837644 U JPS4837644 U JP S4837644U JP 1971081201 U JP1971081201 U JP 1971081201U JP 8120171 U JP8120171 U JP 8120171U JP S4837644 U JPS4837644 U JP S4837644U
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
JP1971081201U
Other languages
Japanese (ja)
Other versions
JPS5321112Y2 (enrdf_load_stackoverflow
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 JP1971081201U priority Critical patent/JPS5321112Y2/ja
Priority to US00284351A priority patent/US3798662A/en
Priority to DE2243391A priority patent/DE2243391C3/de
Priority to GB4163272A priority patent/GB1389883A/en
Publication of JPS4837644U publication Critical patent/JPS4837644U/ja
Application granted granted Critical
Publication of JPS5321112Y2 publication Critical patent/JPS5321112Y2/ja
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
    • G03B7/08—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutter-Related Mechanisms (AREA)
  • Shutters For Cameras (AREA)
JP1971081201U 1971-09-07 1971-09-07 Expired JPS5321112Y2 (enrdf_load_stackoverflow)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1971081201U JPS5321112Y2 (enrdf_load_stackoverflow) 1971-09-07 1971-09-07
US00284351A US3798662A (en) 1971-09-07 1972-08-28 Digital exposure time determining system for cameras
DE2243391A DE2243391C3 (de) 1971-09-07 1972-09-04 Anordnung zur quantisierten Anzeige und/oder Auswertung einer Eingangsinformation, insbesondere einer die Objekthelligkeit oder die Belichtungszeit für photographische Aufnahmen kennzeichnenden Eingangsinformation
GB4163272A GB1389883A (en) 1971-09-07 1972-09-07 Eyposure time control circuit for a camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971081201U JPS5321112Y2 (enrdf_load_stackoverflow) 1971-09-07 1971-09-07

Publications (2)

Publication Number Publication Date
JPS4837644U true JPS4837644U (enrdf_load_stackoverflow) 1973-05-08
JPS5321112Y2 JPS5321112Y2 (enrdf_load_stackoverflow) 1978-06-02

Family

ID=27987615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1971081201U Expired JPS5321112Y2 (enrdf_load_stackoverflow) 1971-09-07 1971-09-07

Country Status (4)

Country Link
US (1) US3798662A (enrdf_load_stackoverflow)
JP (1) JPS5321112Y2 (enrdf_load_stackoverflow)
DE (1) DE2243391C3 (enrdf_load_stackoverflow)
GB (1) GB1389883A (enrdf_load_stackoverflow)

Families Citing this family (9)

* 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
US4074292A (en) * 1973-02-06 1978-02-14 Canon Kabushiki Kaisha System for indicating photographic information
US4054887A (en) * 1973-04-16 1977-10-18 Ernest Leitz Gmbh Exposure control device for photographic cameras
JPS5539372Y2 (enrdf_load_stackoverflow) * 1973-07-27 1980-09-13
JPS5067650A (enrdf_load_stackoverflow) * 1973-10-17 1975-06-06
US4072962A (en) * 1975-07-03 1978-02-07 Nippon Kogaku K.K. Metering device
JPS5421329A (en) * 1977-07-18 1979-02-17 Hitachi Ltd Control system for cameras
US4433914A (en) 1979-09-14 1984-02-28 Vivitar Corporation Exposure meter
ITUD20050119A1 (it) * 2005-07-18 2007-01-19 Neuricam Spa Elemento fotosensibile per sensori elettro-ottici

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS519530A (enrdf_load_stackoverflow) * 1974-07-15 1976-01-26 Hitachi Ltd

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870406A (en) * 1957-06-03 1959-01-20 Caldwell P Smith Device for voltage measurement
JPS5211223B1 (enrdf_load_stackoverflow) * 1970-04-06 1977-03-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS519530A (enrdf_load_stackoverflow) * 1974-07-15 1976-01-26 Hitachi Ltd

Also Published As

Publication number Publication date
US3798662A (en) 1974-03-19
JPS5321112Y2 (enrdf_load_stackoverflow) 1978-06-02
DE2243391A1 (de) 1973-03-15
GB1389883A (en) 1975-04-09
DE2243391C3 (de) 1981-07-02
DE2243391B2 (de) 1980-11-06

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