JPS5146939A - Roshutsuseigyosochi - Google Patents

Roshutsuseigyosochi

Info

Publication number
JPS5146939A
JPS5146939A JP12090274A JP12090274A JPS5146939A JP S5146939 A JPS5146939 A JP S5146939A JP 12090274 A JP12090274 A JP 12090274A JP 12090274 A JP12090274 A JP 12090274A JP S5146939 A JPS5146939 A JP S5146939A
Authority
JP
Japan
Prior art keywords
roshutsuseigyosochi
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
JP12090274A
Other languages
English (en)
Inventor
Hiroshi Iwata
Katsuji Ishikawa
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.)
UESUTO DENKI KK
West Electric Co Ltd
Original Assignee
UESUTO DENKI KK
West Electric 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
Application filed by UESUTO DENKI KK, West Electric Co Ltd filed Critical UESUTO DENKI KK
Priority to JP12090274A priority Critical patent/JPS5146939A/ja
Priority to US05/621,843 priority patent/US4079390A/en
Priority to GB4239175A priority patent/GB1528766A/en
Priority to DE2559766A priority patent/DE2559766C2/de
Priority to DE2546652A priority patent/DE2546652B2/de
Publication of JPS5146939A publication Critical patent/JPS5146939A/ja
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
    • 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
    • G03B7/097—Digital circuits for control of both exposure time and aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Diaphragms For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
JP12090274A 1974-10-18 1974-10-18 Roshutsuseigyosochi Pending JPS5146939A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP12090274A JPS5146939A (en) 1974-10-18 1974-10-18 Roshutsuseigyosochi
US05/621,843 US4079390A (en) 1974-10-18 1975-10-14 Aperture setting device for use with exposure control device
GB4239175A GB1528766A (en) 1974-10-18 1975-10-16 Exposure control systems
DE2559766A DE2559766C2 (de) 1974-10-18 1975-10-17 Blendensteuerung für eine Kamera
DE2546652A DE2546652B2 (de) 1974-10-18 1975-10-17 Blendensteuerung für eine Kamera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12090274A JPS5146939A (en) 1974-10-18 1974-10-18 Roshutsuseigyosochi

Publications (1)

Publication Number Publication Date
JPS5146939A true JPS5146939A (en) 1976-04-22

Family

ID=14797813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12090274A Pending JPS5146939A (en) 1974-10-18 1974-10-18 Roshutsuseigyosochi

Country Status (4)

Country Link
US (1) US4079390A (ja)
JP (1) JPS5146939A (ja)
DE (2) DE2546652B2 (ja)
GB (1) GB1528766A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51122436A (en) * 1975-04-17 1976-10-26 Fuji Photo Optical Co Ltd Diaphragm device for the light measure for camera
JPS53112733A (en) * 1977-03-14 1978-10-02 West Electric Co Exposure control system

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632823U (ja) * 1979-08-22 1981-03-31
JPS5643629A (en) * 1979-09-18 1981-04-22 Olympus Optical Co Ltd Diaphragm control unit
JPS56153326A (en) * 1980-04-30 1981-11-27 Konishiroku Photo Ind Co Ltd Aperture control method
US4445764A (en) * 1980-12-02 1984-05-01 Canon Kabushiki Kaisha Light measuring device for a single lens reflex camera
US4782353A (en) * 1984-02-27 1988-11-01 Seikosha Co., Ltd. Stepping motor-driven sector opening/closing device
US4827348A (en) * 1988-05-02 1989-05-02 Polaroid Corporation Exposure control system for dual mode electronic imaging camera
US4879592A (en) * 1988-05-02 1989-11-07 Polaroid Corporation Camera with two-bladed shutter mechanism with multiple filter apertures disposed for relative movement to provide sequential color separation exposures
US4904055A (en) * 1988-10-03 1990-02-27 Eastman Kodak Company Variable aperture formed by linearly movable elements
US9608627B2 (en) * 2013-01-24 2017-03-28 Halliburton Energy Services Well tool having optical triggering device for controlling electrical power delivery
US10247840B2 (en) 2013-01-24 2019-04-02 Halliburton Energy Services, Inc. Optical well logging

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750540A (en) * 1970-06-09 1973-08-07 Canon Kk Electric exposure control device
AT325944B (de) * 1972-03-25 1975-11-10 Agfa Gevaert Ag Photographische oder kinematographische kamera
US3882522A (en) * 1973-05-22 1975-05-06 Polaroid Corp Non-cocking springless shutter developing two parameter exposure regulation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51122436A (en) * 1975-04-17 1976-10-26 Fuji Photo Optical Co Ltd Diaphragm device for the light measure for camera
JPS53112733A (en) * 1977-03-14 1978-10-02 West Electric Co Exposure control system
JPS6353539B2 (ja) * 1977-03-14 1988-10-24 West Electric Co

Also Published As

Publication number Publication date
DE2559766B1 (de) 1979-08-09
DE2559766C2 (de) 1980-04-30
DE2546652A1 (de) 1976-04-29
DE2546652B2 (de) 1978-07-06
GB1528766A (en) 1978-10-18
US4079390A (en) 1978-03-14

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