DE2462219A1 - Digitale belichtungsteuereinrichtung - Google Patents

Digitale belichtungsteuereinrichtung

Info

Publication number
DE2462219A1
DE2462219A1 DE19742462219 DE2462219A DE2462219A1 DE 2462219 A1 DE2462219 A1 DE 2462219A1 DE 19742462219 DE19742462219 DE 19742462219 DE 2462219 A DE2462219 A DE 2462219A DE 2462219 A1 DE2462219 A1 DE 2462219A1
Authority
DE
Germany
Prior art keywords
control device
exposure control
digital exposure
digital
exposure
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.)
Pending
Application number
DE19742462219
Other languages
English (en)
Inventor
Spaeter Genannt Werden Wird
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 JP9672373A external-priority patent/JPS5321647B2/ja
Priority claimed from JP48096724A external-priority patent/JPS5135854B2/ja
Priority claimed from JP48114739A external-priority patent/JPS5067137A/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of DE2462219A1 publication Critical patent/DE2462219A1/de
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
    • G03B7/089—Analogue circuits for storage of exposure value in mirror reflex cameras
    • 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
    • G03B7/08—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)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
DE19742462219 1973-08-30 1974-08-30 Digitale belichtungsteuereinrichtung Pending DE2462219A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP9672373A JPS5321647B2 (de) 1973-08-30 1973-08-30
JP48096724A JPS5135854B2 (de) 1973-08-30 1973-08-30
JP48114739A JPS5067137A (de) 1973-10-15 1973-10-15
JP194874 1973-12-27

Publications (1)

Publication Number Publication Date
DE2462219A1 true DE2462219A1 (de) 1976-09-23

Family

ID=27453514

Family Applications (4)

Application Number Title Priority Date Filing Date
DE19742462219 Pending DE2462219A1 (de) 1973-08-30 1974-08-30 Digitale belichtungsteuereinrichtung
DE19742462587 Pending DE2462587A1 (de) 1973-08-30 1974-08-30 Elektronischer verschluss
DE19742462589 Pending DE2462589A1 (de) 1973-08-30 1974-08-30 Elektronischer verschluss
DE2462512A Expired DE2462512C2 (de) 1973-08-30 1974-08-30 Elektronischer Verschluß

Family Applications After (3)

Application Number Title Priority Date Filing Date
DE19742462587 Pending DE2462587A1 (de) 1973-08-30 1974-08-30 Elektronischer verschluss
DE19742462589 Pending DE2462589A1 (de) 1973-08-30 1974-08-30 Elektronischer verschluss
DE2462512A Expired DE2462512C2 (de) 1973-08-30 1974-08-30 Elektronischer Verschluß

Country Status (3)

Country Link
CA (1) CA1013988A (de)
DE (4) DE2462219A1 (de)
IT (1) IT1020312B (de)

Also Published As

Publication number Publication date
CA1013988A (en) 1977-07-19
IT1020312B (it) 1977-12-20
DE2441620B2 (de) 1977-07-07
DE2462589A1 (de) 1977-10-13
DE2462512B1 (de) 1979-06-21
DE2441620A1 (de) 1975-03-27
DE2462587A1 (de) 1977-10-13
DE2462512C2 (de) 1980-02-21

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