JPS4949627A - - Google Patents

Info

Publication number
JPS4949627A
JPS4949627A JP47091030A JP9103072A JPS4949627A JP S4949627 A JPS4949627 A JP S4949627A JP 47091030 A JP47091030 A JP 47091030A JP 9103072 A JP9103072 A JP 9103072A JP S4949627 A JPS4949627 A JP S4949627A
Authority
JP
Japan
Prior art keywords
voltage
proportional
exposure
base
shutter
Prior art date
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
JP47091030A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5340337B2 (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 JP9103072A priority Critical patent/JPS5340337B2/ja
Priority to GB3982673A priority patent/GB1401117A/en
Priority to DE19732345343 priority patent/DE2345343C3/de
Priority to FR7332443A priority patent/FR2199409A5/fr
Priority to US395660A priority patent/US3895876A/en
Publication of JPS4949627A publication Critical patent/JPS4949627A/ja
Publication of JPS5340337B2 publication Critical patent/JPS5340337B2/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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
    • 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
    • G03B7/003—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly setting of both shutter and diaphragm
    • 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)
  • Exposure Control For Cameras (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Shutter-Related Mechanisms (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
JP9103072A 1972-09-07 1972-09-11 Expired JPS5340337B2 (enrdf_load_stackoverflow)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP9103072A JPS5340337B2 (enrdf_load_stackoverflow) 1972-09-11 1972-09-11
GB3982673A GB1401117A (en) 1972-09-11 1973-08-22 Quantized representation circuit
DE19732345343 DE2345343C3 (de) 1972-09-11 1973-09-07 Schaltungsanordnung zur quantisierten Darstellung von Belichtungswerten in elektrischen Belichtungsanzeigeschaltungen
FR7332443A FR2199409A5 (enrdf_load_stackoverflow) 1972-09-11 1973-09-10
US395660A US3895876A (en) 1972-09-07 1973-09-10 Quantized indication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9103072A JPS5340337B2 (enrdf_load_stackoverflow) 1972-09-11 1972-09-11

Publications (2)

Publication Number Publication Date
JPS4949627A true JPS4949627A (enrdf_load_stackoverflow) 1974-05-14
JPS5340337B2 JPS5340337B2 (enrdf_load_stackoverflow) 1978-10-26

Family

ID=14015110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9103072A Expired JPS5340337B2 (enrdf_load_stackoverflow) 1972-09-07 1972-09-11

Country Status (3)

Country Link
JP (1) JPS5340337B2 (enrdf_load_stackoverflow)
FR (1) FR2199409A5 (enrdf_load_stackoverflow)
GB (1) GB1401117A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137628A (enrdf_load_stackoverflow) * 1974-09-26 1976-03-30 Canon Kk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137628A (enrdf_load_stackoverflow) * 1974-09-26 1976-03-30 Canon Kk

Also Published As

Publication number Publication date
DE2345343A1 (de) 1974-03-28
JPS5340337B2 (enrdf_load_stackoverflow) 1978-10-26
DE2345343B2 (de) 1976-01-02
GB1401117A (en) 1975-07-16
FR2199409A5 (enrdf_load_stackoverflow) 1974-04-05

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