JPS55120018A - Electromagnetic driving device for camera - Google Patents
Electromagnetic driving device for cameraInfo
- 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
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
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)
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)
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 |
-
1979
- 1979-03-12 JP JP2770379A patent/JPS55120018A/en active Granted
Patent Citations (2)
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)
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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