JPS55120018A - Electromagnetic driving device for camera - Google Patents

Electromagnetic driving device for camera

Info

Publication number
JPS55120018A
JPS55120018A JP2770379A JP2770379A JPS55120018A JP S55120018 A JPS55120018 A JP S55120018A JP 2770379 A JP2770379 A JP 2770379A JP 2770379 A JP2770379 A JP 2770379A JP S55120018 A JPS55120018 A JP S55120018A
Authority
JP
Japan
Prior art keywords
coil
force
power
actions
electromagnetic driving
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
JP2770379A
Other languages
Japanese (ja)
Other versions
JPS6315830B2 (en
Inventor
Minoru Kawada
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.)
Mamiya Camera Co Ltd
Original Assignee
Mamiya Camera Co Ltd
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 Mamiya Camera Co Ltd filed Critical Mamiya Camera Co Ltd
Priority to JP2770379A priority Critical patent/JPS55120018A/en
Publication of JPS55120018A publication Critical patent/JPS55120018A/en
Publication of JPS6315830B2 publication Critical patent/JPS6315830B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shutter-Related Mechanisms (AREA)
  • Electromagnets (AREA)
  • Shutters For Cameras (AREA)

Abstract

PURPOSE: To enable to drive plural control objects with a single electromagnetic driving element, by constituting an electromagnetic driving device with plural magnetic field in the magnetic gap and current in coil.
CONSTITUTION: Without supplying power to demagnetizing coils (a)W(d), when power is supplied to a coil 20 in the direction of arrow, a composite force E of four actions AWD acts on the coil 20. When power is then supplied to demagnetizing coils (b), (c) to demagnetize magnetic poles S1, N2, only force of actions A and D exerts on the coil 20; when power is supplied only to demagnetizing coils (a), (d) to demagnetize magnetic poles N1, S2, only force of actions B and C exerts on the coil 20. Therefore, by controlling the power supply to the demagnetizing coils (a)W (d), the coil 20 forms force of action in three directions, and when the power supply direction to the coil 20 is inverted, force of action in total six directions can be formed. Further, by regulating the supply currents to coils (a)W(d), the direction of the force of composite action E of actions AWD may be varied minutely.
COPYRIGHT: (C)1980,JPO&Japio
JP2770379A 1979-03-12 1979-03-12 Electromagnetic driving device for camera Granted JPS55120018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2770379A JPS55120018A (en) 1979-03-12 1979-03-12 Electromagnetic driving device for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2770379A JPS55120018A (en) 1979-03-12 1979-03-12 Electromagnetic driving device for camera

Publications (2)

Publication Number Publication Date
JPS55120018A true JPS55120018A (en) 1980-09-16
JPS6315830B2 JPS6315830B2 (en) 1988-04-06

Family

ID=12228335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2770379A Granted JPS55120018A (en) 1979-03-12 1979-03-12 Electromagnetic driving device for camera

Country Status (1)

Country Link
JP (1) JPS55120018A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61203860A (en) * 1985-03-06 1986-09-09 Agency Of Ind Science & Technol 3-degrees-of-freedom dc motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113620A (en) * 1975-03-28 1976-10-06 Fuji Photo Film Co Ltd A wing for optical instrument
JPS5370310A (en) * 1976-12-03 1978-06-22 Fujitsu Ltd Moving coil type motors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113620A (en) * 1975-03-28 1976-10-06 Fuji Photo Film Co Ltd A wing for optical instrument
JPS5370310A (en) * 1976-12-03 1978-06-22 Fujitsu Ltd Moving coil type motors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61203860A (en) * 1985-03-06 1986-09-09 Agency Of Ind Science & Technol 3-degrees-of-freedom dc motor

Also Published As

Publication number Publication date
JPS6315830B2 (en) 1988-04-06

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