JPS5650318A - Single-lens reflex camera having electromagnetic driving source - Google Patents

Single-lens reflex camera having electromagnetic driving source

Info

Publication number
JPS5650318A
JPS5650318A JP12719479A JP12719479A JPS5650318A JP S5650318 A JPS5650318 A JP S5650318A JP 12719479 A JP12719479 A JP 12719479A JP 12719479 A JP12719479 A JP 12719479A JP S5650318 A JPS5650318 A JP S5650318A
Authority
JP
Japan
Prior art keywords
electromagnet
holding operation
driving source
mirror
lens reflex
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
JP12719479A
Other languages
Japanese (ja)
Other versions
JPS6059576B2 (en
Inventor
Hirotsugu Sugiura
Ryoichi Suzuki
Nobuaki Date
Shuichiro Saito
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 JP54127194A priority Critical patent/JPS6059576B2/en
Priority to US06/132,100 priority patent/US4313658A/en
Priority to FR8006619A priority patent/FR2452726A1/en
Priority to DE19803011693 priority patent/DE3011693C2/en
Priority to GB8010085A priority patent/GB2046457B/en
Publication of JPS5650318A publication Critical patent/JPS5650318A/en
Publication of JPS6059576B2 publication Critical patent/JPS6059576B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Shutters For Cameras (AREA)
  • Cameras In General (AREA)

Abstract

PURPOSE: To prevent running of the shutter screen before mirror up, by performing the holding operation of the shutter screen by magnetic force of the electromagnet and by releasing the holding operation by the mirror rise completion signal.
CONSTITUTION: This camera is the single-lens reflex camera having the electromagnetic driving source which generates electromagnetic force due to electric power supply and drives shutter screen 42 by electromagnetic force. The holding operation dependent upon the holding means which holds shutter screens 42-1, 42-2, and 42-3 in holding positions before running is performed by magnetic force of electromagnet 32 with permanent electromagnetic force, and electricity is supplied to electromagnet 32 by the rise completion signal of mirror 27 to release the holding operation.
COPYRIGHT: (C)1981,JPO&Japio
JP54127194A 1979-03-26 1979-10-01 Single-lens reflex camera with electromagnetic drive source Expired JPS6059576B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP54127194A JPS6059576B2 (en) 1979-10-01 1979-10-01 Single-lens reflex camera with electromagnetic drive source
US06/132,100 US4313658A (en) 1979-03-26 1980-03-20 Camera having electromagnetic drive source
FR8006619A FR2452726A1 (en) 1979-03-26 1980-03-25 Shutter for SLR camera - is in form of front and rear shutter curtains operated by electromagnetic drive shafts
DE19803011693 DE3011693C2 (en) 1979-03-26 1980-03-26 Lock for a single-lens reflex camera
GB8010085A GB2046457B (en) 1979-03-26 1980-03-26 Camera shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54127194A JPS6059576B2 (en) 1979-10-01 1979-10-01 Single-lens reflex camera with electromagnetic drive source

Publications (2)

Publication Number Publication Date
JPS5650318A true JPS5650318A (en) 1981-05-07
JPS6059576B2 JPS6059576B2 (en) 1985-12-25

Family

ID=14954013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54127194A Expired JPS6059576B2 (en) 1979-03-26 1979-10-01 Single-lens reflex camera with electromagnetic drive source

Country Status (1)

Country Link
JP (1) JPS6059576B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840729U (en) * 1981-09-10 1983-03-17 日本電産コパル株式会社 Shutter operation safety mechanism
JPS59201029A (en) * 1983-04-30 1984-11-14 Asahi Optical Co Ltd Electronic camera

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499562A (en) * 1972-03-29 1974-01-28
JPS4995621A (en) * 1972-10-13 1974-09-11
JPS5369029A (en) * 1976-12-01 1978-06-20 Copal Co Ltd Electro magnetic focal plain shutter
JPS5433137U (en) * 1977-08-09 1979-03-05

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499562A (en) * 1972-03-29 1974-01-28
JPS4995621A (en) * 1972-10-13 1974-09-11
JPS5369029A (en) * 1976-12-01 1978-06-20 Copal Co Ltd Electro magnetic focal plain shutter
JPS5433137U (en) * 1977-08-09 1979-03-05

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840729U (en) * 1981-09-10 1983-03-17 日本電産コパル株式会社 Shutter operation safety mechanism
JPS59201029A (en) * 1983-04-30 1984-11-14 Asahi Optical Co Ltd Electronic camera
JPH0572792B2 (en) * 1983-04-30 1993-10-13 Asahi Optical Co Ltd

Also Published As

Publication number Publication date
JPS6059576B2 (en) 1985-12-25

Similar Documents

Publication Publication Date Title
JPS5385437A (en) Developing device
JPS53129628A (en) Automatic exposure control camera of electromagnetic release type
JPS5650318A (en) Single-lens reflex camera having electromagnetic driving source
JPS5220828A (en) Automatic exposure control camera of both priority type which can be p rovided with electric motor drive device
JPS5361329A (en) Electromagnetic mechanism for camera release
JPS5655928A (en) Single-lens reflex camera having electromagnetic driving source
JPS55144216A (en) Electromagnetically driven slit exposure shutter
JPS5319025A (en) Electromagnetic release mechanism
JPS5655929A (en) Camera having electromagnetic driving source
JPS5360160A (en) Magnetron device
JPS53107821A (en) Electromagnetic drive device for cameras
GB1537778A (en) Photocopying device provided with a transparent plate
JPS55103543A (en) Motor driven camera
JPS5660423A (en) Electromagnetic drive shutter
JPS5377629A (en) Developing method of electrostatic latent image
JPS5424621A (en) Shutter mechanism with bult-in electro-magnetic self-timer
JPS52105817A (en) Removably holding device for focal plate of camera
JPS53129627A (en) Electromagnetic mechanism for camera release
JPS5299764A (en) Magnetic field type electron lens
JPS52130591A (en) Electric display device
JPS55161225A (en) Motor driven mirror device of single-lens reflex camera
JPS5220037A (en) Magnetic transfer device of magnetic toner
JPS5370430A (en) Safety switch device for electromagnetic release camera
JPS5442132A (en) Preventing device for mulfunction of camera
JPS5241532A (en) Film projection device