JPS56119119A - Bound prevention device for solenoid-driven shutter - Google Patents

Bound prevention device for solenoid-driven shutter

Info

Publication number
JPS56119119A
JPS56119119A JP2251080A JP2251080A JPS56119119A JP S56119119 A JPS56119119 A JP S56119119A JP 2251080 A JP2251080 A JP 2251080A JP 2251080 A JP2251080 A JP 2251080A JP S56119119 A JPS56119119 A JP S56119119A
Authority
JP
Japan
Prior art keywords
turns
run
blade
switch
solenoid
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.)
Granted
Application number
JP2251080A
Other languages
Japanese (ja)
Other versions
JPS6311653B2 (en
Inventor
Ryoichi Suzuki
Shuichiro Saito
Hirotsugu Sugiura
Nobuaki Date
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2251080A priority Critical patent/JPS56119119A/en
Priority to US06/132,100 priority patent/US4313658A/en
Priority to GB8010085A priority patent/GB2046457B/en
Publication of JPS56119119A publication Critical patent/JPS56119119A/en
Publication of JPS6311653B2 publication Critical patent/JPS6311653B2/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)

Abstract

PURPOSE:To prevent blades from bounding by supplying a driving current even after the run of the blades of a shutter driving the leading blade and trailing blade by solenoid driving is completed. CONSTITUTION:When switch 99 is closed through release operation, releasing magnet coil 8 turns on and a charge lever is released to start mirror-up operation. Then, switch 77 is changed over to the side of contact (b) and information Tv (shuttter speed) of capacitor 76 is supplied to OP amplifier 78. On the other hand, the closure of switch 29 turns on transistor TR2 via timer circuit 109 to run the leading blade. When the run is almost completed, timer circuit 106 turns off to hold output E1 of gate 112 at level H and then TR1 turns on to increase the feed current of coil 37, thereby preventing the blade from bounding. When output Q of FF113 is held at level H on the start of the leading blade run, trigger circuit 83 operates according to information Tv a prescribed time later and the trailing blade is driven similarly.
JP2251080A 1979-03-26 1980-02-25 Bound prevention device for solenoid-driven shutter Granted JPS56119119A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2251080A JPS56119119A (en) 1980-02-25 1980-02-25 Bound prevention device for solenoid-driven shutter
US06/132,100 US4313658A (en) 1979-03-26 1980-03-20 Camera having electromagnetic drive source
GB8010085A GB2046457B (en) 1979-03-26 1980-03-26 Camera shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2251080A JPS56119119A (en) 1980-02-25 1980-02-25 Bound prevention device for solenoid-driven shutter

Publications (2)

Publication Number Publication Date
JPS56119119A true JPS56119119A (en) 1981-09-18
JPS6311653B2 JPS6311653B2 (en) 1988-03-15

Family

ID=12084747

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2251080A Granted JPS56119119A (en) 1979-03-26 1980-02-25 Bound prevention device for solenoid-driven shutter

Country Status (1)

Country Link
JP (1) JPS56119119A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113127U (en) * 1987-12-01 1988-07-21
JPH0380234A (en) * 1990-02-01 1991-04-05 Seikosha Co Ltd Method for controlling shutter for step motor type camera
JPH0715504U (en) * 1993-08-26 1995-03-14 キソー工業株式会社 Vacuum packaging machine
JP2012226101A (en) * 2011-04-19 2012-11-15 Canon Inc Imaging apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113127U (en) * 1987-12-01 1988-07-21
JPH0380234A (en) * 1990-02-01 1991-04-05 Seikosha Co Ltd Method for controlling shutter for step motor type camera
JPH0474693B2 (en) * 1990-02-01 1992-11-26
JPH0715504U (en) * 1993-08-26 1995-03-14 キソー工業株式会社 Vacuum packaging machine
JP2012226101A (en) * 2011-04-19 2012-11-15 Canon Inc Imaging apparatus

Also Published As

Publication number Publication date
JPS6311653B2 (en) 1988-03-15

Similar Documents

Publication Publication Date Title
JPS56119119A (en) Bound prevention device for solenoid-driven shutter
JPS5237428A (en) Automatic exposure control device
JPS57185022A (en) Electromagnetic driving device
JPS5545013A (en) Automatic film idle feeding device of camera built in with power winder mechanism
JPS57141619A (en) Camera equipped with automatic focusing device
JPS56135833A (en) Winding and rewinding change-over device in camera
JPS5459930A (en) Stopper
JPS5532467A (en) Reversible controller
US4650306A (en) Electromagnetically releasable shutter for a camera
JPS5660423A (en) Electromagnetic drive shutter
JPS55124160A (en) Control method of automatic original feeder
JPS56165828A (en) Timer device for combustor
JPS5676485A (en) Cover catching device for coal feeder
JPS5647645A (en) Automatic controller for choke valve
JPS5713714A (en) Driving device for electromagnet
JPS56128927A (en) Solenoid-driven shutter device
JPS57205719A (en) Electromagnetically driven shutter
JPS57112726A (en) Electronic shutter for camera
JPS5740239A (en) Camera device
JPS5681830A (en) Original stop mechanism of automatic original feeder
JPS54121118A (en) Camera which has made spring winder removable
JPS5562434A (en) Aperture changeover mechanism
JPS55144218A (en) Shutter opening and closing mechanism
JPS55138732A (en) Automatic film feeder
JPS5669622A (en) Sound cine camera which permits single frame shooting