JPH0514253B2 - - Google Patents

Info

Publication number
JPH0514253B2
JPH0514253B2 JP57032097A JP3209782A JPH0514253B2 JP H0514253 B2 JPH0514253 B2 JP H0514253B2 JP 57032097 A JP57032097 A JP 57032097A JP 3209782 A JP3209782 A JP 3209782A JP H0514253 B2 JPH0514253 B2 JP H0514253B2
Authority
JP
Japan
Prior art keywords
voltage
shutter
power supply
supply voltage
drive coil
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.)
Expired - Lifetime
Application number
JP57032097A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58149026A (ja
Inventor
Yukio Yoshikawa
Tomio Kurosu
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.)
Nidec Precision Corp
Original Assignee
Nidec Copal Corp
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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP57032097A priority Critical patent/JPS58149026A/ja
Priority to US06/469,508 priority patent/US4462672A/en
Publication of JPS58149026A publication Critical patent/JPS58149026A/ja
Publication of JPH0514253B2 publication Critical patent/JPH0514253B2/ja
Granted 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
    • G03B7/083—Analogue circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)
JP57032097A 1982-03-01 1982-03-01 電磁駆動プログラムシヤツタ−の制御回路 Granted JPS58149026A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP57032097A JPS58149026A (ja) 1982-03-01 1982-03-01 電磁駆動プログラムシヤツタ−の制御回路
US06/469,508 US4462672A (en) 1982-03-01 1983-02-24 Control circuit for an electromagnetically driven programming shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57032097A JPS58149026A (ja) 1982-03-01 1982-03-01 電磁駆動プログラムシヤツタ−の制御回路

Publications (2)

Publication Number Publication Date
JPS58149026A JPS58149026A (ja) 1983-09-05
JPH0514253B2 true JPH0514253B2 (enrdf_load_stackoverflow) 1993-02-24

Family

ID=12349385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57032097A Granted JPS58149026A (ja) 1982-03-01 1982-03-01 電磁駆動プログラムシヤツタ−の制御回路

Country Status (1)

Country Link
JP (1) JPS58149026A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4641677B2 (ja) * 2001-07-27 2011-03-02 三洋電機株式会社 デジタルカメラのシャッター駆動回路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210231B2 (enrdf_load_stackoverflow) * 1971-09-23 1977-03-22
IT1003725B (it) * 1973-05-22 1976-06-10 Polaroid Corp Perfezionamento nei dispositivi di controllo della esposizione per ot turatori di apparecchi fotografici
DE2818606A1 (de) * 1978-04-27 1979-11-08 Agfa Gevaert Ag Belichtungssteuervorrichtung fuer fotografische kameras
JPS54164124A (en) * 1978-06-16 1979-12-27 Canon Kk Electromagnetic drive shutter drive circuit
DE2922918A1 (de) * 1979-06-06 1980-12-11 Agfa Gevaert Ag Fotografische kamera mit einem elektronisch gesteuerten blendenverschluss
JPS56130728A (en) * 1980-03-18 1981-10-13 Copal Co Ltd Shutter release controlling circuit of single-lens reflex camera

Also Published As

Publication number Publication date
JPS58149026A (ja) 1983-09-05

Similar Documents

Publication Publication Date Title
US4333722A (en) Method of controlling electromagnetic actuator in a camera, and actuator controllable thereby
US4121235A (en) Electromagnetically operated shutter mechanism
US3082674A (en) Automatic exposure mechanism with magnetic control of iris blades
US3984795A (en) Magnetic latch construction
US4322145A (en) Shutter device for camera
US3116670A (en) Automatic exposure control for cameras
US6123468A (en) Magnetically biased electromagnetic shuttering device for controlling the shutter blades of a camera
JPH0514253B2 (enrdf_load_stackoverflow)
US3056341A (en) Photographic shutter mechanism
US3241471A (en) Shutter apparatus
JPS58149027A (ja) 電磁駆動プログラムシヤツタ−の制御回路
US4306788A (en) Electromagnetically controlled shutter
US3116673A (en) Automatic regulating device for the lighting of a photo-sensitive film during filming
US3433144A (en) Aperture trim means for a photoflash exposure control system
JPS6239373Y2 (enrdf_load_stackoverflow)
US3295429A (en) Electromagnetic relay exposure controls
US4320950A (en) Electromagnetically driven shutter
US4353632A (en) Electromagnetically driven shutter device
JPS6237218Y2 (enrdf_load_stackoverflow)
US4643553A (en) Electro-magnetically driven shutter
US5113216A (en) Camera
US1971086A (en) Standard-frequency apparatus
ZA200105592B (en) Trip system for an electrical switch having a favourable force-path-characteristics.
JPS6111701Y2 (enrdf_load_stackoverflow)
GB1169925A (en) Improvements in and relating to Cameras