JPS5574523A - Electromagnetically driven aperture shutter - Google Patents
Electromagnetically driven aperture shutterInfo
- 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
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
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14867778A JPS5574523A (en) | 1978-12-01 | 1978-12-01 | Electromagnetically driven aperture shutter |
FR7926174A FR2440013A1 (en) | 1978-10-23 | 1979-10-22 | ELECTROMAGNETICALLY ACTUATED DIAPHRAGM SHUTTER |
DE2942636A DE2942636C2 (en) | 1978-10-23 | 1979-10-22 | Electromagnetically operated central lock |
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)
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 |
-
1978
- 1978-12-01 JP JP14867778A patent/JPS5574523A/en active Granted
Patent Citations (10)
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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