JPS5574523A - Electromagnetically driven aperture shutter - Google Patents

Electromagnetically driven aperture shutter

Info

Publication number
JPS5574523A
JPS5574523A JP14867778A JP14867778A JPS5574523A JP S5574523 A JPS5574523 A JP S5574523A JP 14867778 A JP14867778 A JP 14867778A JP 14867778 A JP14867778 A JP 14867778A JP S5574523 A JPS5574523 A JP S5574523A
Authority
JP
Japan
Prior art keywords
shutter
sector
moving parts
blade
pin
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
JP14867778A
Other languages
Japanese (ja)
Other versions
JPS6151778B2 (en
Inventor
Michiro Hirohata
Yukio Tachikawa
Tetsuya Taguchi
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 JP14867778A priority Critical patent/JPS5574523A/en
Priority to DE2942636A priority patent/DE2942636C2/en
Priority to FR7926174A priority patent/FR2440013A1/en
Publication of JPS5574523A publication Critical patent/JPS5574523A/en
Priority to US06/304,936 priority patent/US4390262A/en
Publication of JPS6151778B2 publication Critical patent/JPS6151778B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shutters For Cameras (AREA)

Abstract

PURPOSE: To achieve less weight and less power by specifying the meterials of the members constituting shutter moving parts.
CONSTITUTION: The shutter blade 9, sector ring 4, combination-use blade 10, sector pin 8, axis pin 11 constituting the shutter moving parts are formed by non-magnetic material or plastics. This reduces the weight of the shutter moving parts and makes possible the reduction in the power of driving current to be supplied to the coil patterns provided to the front and back surfaces of the sector ring 4 of the time when the opening and closing of the shutter are accomplished through supply of the driving current to the coil patterns by a release operation, rotating of the sector ring 4 until it is braked and positioned by the stopper 14 and the transmission of its revolution to the shutter blade 9 and combination-use blade 10 by the sector pin 8.
COPYRIGHT: (C)1980,JPO&Japio
JP14867778A 1978-10-23 1978-12-01 Electromagnetically driven aperture shutter Granted JPS5574523A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP14867778A JPS5574523A (en) 1978-12-01 1978-12-01 Electromagnetically driven aperture shutter
DE2942636A DE2942636C2 (en) 1978-10-23 1979-10-22 Electromagnetically operated central lock
FR7926174A FR2440013A1 (en) 1978-10-23 1979-10-22 ELECTROMAGNETICALLY ACTUATED DIAPHRAGM SHUTTER
US06/304,936 US4390262A (en) 1978-10-23 1981-09-23 Electromagnetically operated diaphragm shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14867778A JPS5574523A (en) 1978-12-01 1978-12-01 Electromagnetically driven aperture shutter

Publications (2)

Publication Number Publication Date
JPS5574523A true JPS5574523A (en) 1980-06-05
JPS6151778B2 JPS6151778B2 (en) 1986-11-10

Family

ID=15458136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14867778A Granted JPS5574523A (en) 1978-10-23 1978-12-01 Electromagnetically driven aperture shutter

Country Status (1)

Country Link
JP (1) JPS5574523A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4835312A (en) * 1971-07-16 1973-05-24
JPS4974310A (en) * 1972-11-25 1974-07-18
JPS4988006A (en) * 1972-12-27 1974-08-22
JPS49149913U (en) * 1973-04-25 1974-12-25
JPS5076302U (en) * 1973-06-25 1975-07-03
JPS5158605A (en) * 1974-11-20 1976-05-22 Oki Electric Ind Co Ltd ENBANKAITENSHIGATADENDOKI
JPS5251512A (en) * 1975-10-22 1977-04-25 Hitachi Ltd Motor with frequency generator
JPS5352451A (en) * 1976-10-25 1978-05-12 Nippon Telegr & Teleph Corp <Ntt> Production of rotary type electromagnetic induction position detector
JPS5374028A (en) * 1976-11-04 1978-07-01 Olympus Optical Co Ltd Diaphragm device for camera
JPS5495233U (en) * 1977-12-17 1979-07-05

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4835312A (en) * 1971-07-16 1973-05-24
JPS4974310A (en) * 1972-11-25 1974-07-18
JPS4988006A (en) * 1972-12-27 1974-08-22
JPS49149913U (en) * 1973-04-25 1974-12-25
JPS5076302U (en) * 1973-06-25 1975-07-03
JPS5158605A (en) * 1974-11-20 1976-05-22 Oki Electric Ind Co Ltd ENBANKAITENSHIGATADENDOKI
JPS5251512A (en) * 1975-10-22 1977-04-25 Hitachi Ltd Motor with frequency generator
JPS5352451A (en) * 1976-10-25 1978-05-12 Nippon Telegr & Teleph Corp <Ntt> Production of rotary type electromagnetic induction position detector
JPS5374028A (en) * 1976-11-04 1978-07-01 Olympus Optical Co Ltd Diaphragm device for camera
JPS5495233U (en) * 1977-12-17 1979-07-05

Also Published As

Publication number Publication date
JPS6151778B2 (en) 1986-11-10

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