JPS5116291Y2 - - Google Patents

Info

Publication number
JPS5116291Y2
JPS5116291Y2 JP11175771U JP11175771U JPS5116291Y2 JP S5116291 Y2 JPS5116291 Y2 JP S5116291Y2 JP 11175771 U JP11175771 U JP 11175771U JP 11175771 U JP11175771 U JP 11175771U JP S5116291 Y2 JPS5116291 Y2 JP S5116291Y2
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.)
Expired
Application number
JP11175771U
Other versions
JPS4867738U (ja
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 JP11175771U priority Critical patent/JPS5116291Y2/ja
Priority to US3776111D priority patent/US3776111A/en
Priority to GB5475272A priority patent/GB1373735A/en
Priority to DE2258119A priority patent/DE2258119B2/de
Publication of JPS4867738U publication Critical patent/JPS4867738U/ja
Application granted granted Critical
Publication of JPS5116291Y2 publication Critical patent/JPS5116291Y2/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
    • G03B7/085—Analogue circuits for control of aperture
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)
JP11175771U 1971-11-30 1971-11-30 Expired JPS5116291Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11175771U JPS5116291Y2 (ja) 1971-11-30 1971-11-30
US3776111D US3776111A (en) 1971-11-30 1972-11-17 Automatic exposure determining device
GB5475272A GB1373735A (en) 1971-11-30 1972-11-27 Automatic exposure control device
DE2258119A DE2258119B2 (de) 1971-11-30 1972-11-28 Automatische Belichtungseinstellvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11175771U JPS5116291Y2 (ja) 1971-11-30 1971-11-30

Publications (2)

Publication Number Publication Date
JPS4867738U JPS4867738U (ja) 1973-08-28
JPS5116291Y2 true JPS5116291Y2 (ja) 1976-04-28

Family

ID=14569403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11175771U Expired JPS5116291Y2 (ja) 1971-11-30 1971-11-30

Country Status (4)

Country Link
US (1) US3776111A (ja)
JP (1) JPS5116291Y2 (ja)
DE (1) DE2258119B2 (ja)
GB (1) GB1373735A (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100558A (en) * 1972-09-14 1978-07-11 Hiroshi Koike Automatic-exposure control device for optical instruments
JPS5250689B2 (ja) * 1972-12-29 1977-12-27
JPS49126328A (ja) * 1973-04-04 1974-12-03
US3978384A (en) * 1974-04-24 1976-08-31 Potter Instrument Company, Inc. Bidirectional motor drive using switched amplitude controlled current
JPS5846406Y2 (ja) * 1974-05-16 1983-10-22 ニホンセイミツソツキ カブシキガイシヤ サ−ボロコウリヨウセイギヨソウチ
US4010480A (en) * 1974-08-19 1977-03-01 Yugenkaisha Sato Kenkyusho Control circuit for automatically controlling a diaphragm of a camera
US4072962A (en) * 1975-07-03 1978-02-07 Nippon Kogaku K.K. Metering device
JPS5620395U (ja) * 1979-07-23 1981-02-23
JPS56157289A (en) * 1980-05-01 1981-12-04 Olympus Optical Co Ltd Braking device for motor
US4545004A (en) * 1984-03-22 1985-10-01 General Motors Corporation Bridge driver circuit for a DC electric motor
US5666036A (en) * 1995-05-31 1997-09-09 Sgs-Thomson Microelectronics, Inc. Circuit for driving the motor of a temperature blend door

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935695B1 (ja) * 1965-10-07 1974-09-25
US3476028A (en) * 1966-03-08 1969-11-04 Minolta Camera Kk Monocular narrow angle exposure meter
US3427941A (en) * 1966-07-28 1969-02-18 Eastman Kodak Co Automatic exposure control
FR1500299A (fr) * 1966-09-20 1967-11-03 Optique Prec Soc D Dispositif de commande automatique du diaphragme d'un appareil de prise de vues
US3430053A (en) * 1967-08-24 1969-02-25 Lawrence A Westhaver Method for aperture control in which the loop gain is caused to vanish when the absolute value of the error is less than a given value and is caused to assume its nominal value when the absolute value of the error is greater than a second given value
US3611894A (en) * 1969-04-22 1971-10-12 Bell & Howell Co Automatic exposure control system
US3696719A (en) * 1970-02-26 1972-10-10 Canon Kk Automatic exposure control device

Also Published As

Publication number Publication date
DE2258119B2 (de) 1975-02-06
DE2258119A1 (de) 1973-06-07
JPS4867738U (ja) 1973-08-28
US3776111A (en) 1973-12-04
GB1373735A (en) 1974-11-13

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