JPS54111337A - Electromagnetic device - Google Patents
Electromagnetic deviceInfo
- Publication number
- JPS54111337A JPS54111337A JP1834778A JP1834778A JPS54111337A JP S54111337 A JPS54111337 A JP S54111337A JP 1834778 A JP1834778 A JP 1834778A JP 1834778 A JP1834778 A JP 1834778A JP S54111337 A JPS54111337 A JP S54111337A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic flux
- coils
- yoke
- pole piece
- reciprocating
- 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.)
- Pending
Links
Abstract
PURPOSE: To reduce the power consumption at the controlling of reciprocating shutter by making effective use of magnetic fluxes through selective energizing of a plurality of moving coils.
CONSTITUTION: Plural coils C1, C2... provided to the bobbin of a coil supporting member 12 are energized by the magnetic flux by the magnetic field generated between the pole piece 11 of the permanent magnet 10 prqvided to a yoke 13 and the yoke 13, by which the member 12 is moved in the direction at a right angle to the magnetic flux. When this movement is detected and current is selectively supplied to the coils C1, C2... opposing the pole piece, the magnetic flux may be effectively utilized and the member 16 may be reciprocated for a long stroke with small consumption. Hence, the opening and closing of the reciprocating focal plane shutter of the camera cooperating with the member 16 may be accomplished with small power consumption.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1834778A JPS54111337A (en) | 1978-02-20 | 1978-02-20 | Electromagnetic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1834778A JPS54111337A (en) | 1978-02-20 | 1978-02-20 | Electromagnetic device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54111337A true JPS54111337A (en) | 1979-08-31 |
Family
ID=11969124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1834778A Pending JPS54111337A (en) | 1978-02-20 | 1978-02-20 | Electromagnetic device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54111337A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5780178U (en) * | 1980-11-04 | 1982-05-18 | ||
JPS57208855A (en) * | 1981-06-15 | 1982-12-22 | Nippon Telegr & Teleph Corp <Ntt> | Moving coil type actuator |
JPS629239U (en) * | 1985-07-01 | 1987-01-20 |
-
1978
- 1978-02-20 JP JP1834778A patent/JPS54111337A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5780178U (en) * | 1980-11-04 | 1982-05-18 | ||
JPS57208855A (en) * | 1981-06-15 | 1982-12-22 | Nippon Telegr & Teleph Corp <Ntt> | Moving coil type actuator |
JPS629239U (en) * | 1985-07-01 | 1987-01-20 | ||
JPS634186Y2 (en) * | 1985-07-01 | 1988-02-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4240728A (en) | Photographic camera shutter electromagnetic system for controlling photographic light admitted to camera | |
ATE334475T1 (en) | ELECTROMAGNETIC TRIGGER | |
JPS54111337A (en) | Electromagnetic device | |
JPS5472045A (en) | Automatic focus control device | |
JPS5583453A (en) | Moving coil type linear motor | |
JPS5528086A (en) | Electromagnetically driven shutter device | |
JPS5361329A (en) | Electromagnetic mechanism for camera release | |
JPS53113376A (en) | Oscillatory device | |
FR2321181A1 (en) | Highly sensitive electromagnetic relay - uses attraction force generated in coil on yoke against spring force | |
JPS6476654A (en) | Lens for field emission type electron gun | |
JPS6488524A (en) | Electromagnetic actuator for driving shutter | |
JPS56122107A (en) | Electromagnetic driving device | |
JPS57149130A (en) | Magnetizing and demagnetizing method of magnetic chuck and its practical magnetic chuck | |
GB2015826A (en) | Polarised relay | |
JPS5651808A (en) | Solenoid apparatus | |
JPS57198612A (en) | Electromagnetic driving device | |
JPS55152072A (en) | Magnetic circuit construction for printing head of wire dot printer | |
JPS5527691A (en) | Electromagnetic device | |
JPS61220310A (en) | Bilaterally shifting solenoid | |
JPS5411411A (en) | Magnetic circuit | |
JPS54162506A (en) | Optical system video disc reproducer | |
JPS5799714A (en) | Polarized electromagnet | |
SU679920A1 (en) | Magnetoelectric shutter lock | |
JPS54144912A (en) | Magnetic circuit | |
JPS53107821A (en) | Electromagnetic drive device for cameras |