IT1019794B - Metodo e dispositivo per la pre sentazione del valore dell espo sizione in una camera relex ad obp iettivo singolo - Google Patents

Metodo e dispositivo per la pre sentazione del valore dell espo sizione in una camera relex ad obp iettivo singolo

Info

Publication number
IT1019794B
IT1019794B IT2612674A IT2612674A IT1019794B IT 1019794 B IT1019794 B IT 1019794B IT 2612674 A IT2612674 A IT 2612674A IT 2612674 A IT2612674 A IT 2612674A IT 1019794 B IT1019794 B IT 1019794B
Authority
IT
Italy
Prior art keywords
relex
expo
chamber
value
section
Prior art date
Application number
IT2612674A
Other languages
English (en)
Original Assignee
Ricoh 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
Priority claimed from JP48089813A external-priority patent/JPS5047619A/ja
Priority claimed from JP9672573A external-priority patent/JPS5321648B2/ja
Application filed by Ricoh Kk filed Critical Ricoh Kk
Application granted granted Critical
Publication of IT1019794B publication Critical patent/IT1019794B/it

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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
    • 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)
  • Indication In Cameras, And Counting Of Exposures (AREA)
IT2612674A 1973-08-10 1974-08-08 Metodo e dispositivo per la pre sentazione del valore dell espo sizione in una camera relex ad obp iettivo singolo IT1019794B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48089813A JPS5047619A (it) 1973-08-10 1973-08-10
JP9672573A JPS5321648B2 (it) 1973-08-30 1973-08-30

Publications (1)

Publication Number Publication Date
IT1019794B true IT1019794B (it) 1977-11-30

Family

ID=26431225

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2612674A IT1019794B (it) 1973-08-10 1974-08-08 Metodo e dispositivo per la pre sentazione del valore dell espo sizione in una camera relex ad obp iettivo singolo

Country Status (2)

Country Link
CA (1) CA1015588A (it)
IT (1) IT1019794B (it)

Also Published As

Publication number Publication date
DE2438474B2 (de) 1977-05-26
CA1015588A (en) 1977-08-16
DE2438474A1 (de) 1975-02-27

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