| 摘要 |
PURPOSE: An ultra thin shutter device is provided to smoothly perform an opening and closing a light transmission hole even in case of omitting an arm lever which is an obstacle to the thickness reduction. CONSTITUTION: An ultra thin shutter device comprises a housing(10), a first electromagnet(30), a second electromagnet(40), first and second blades(51,52), and first and second magnets(71,72). The housing comprises a light transmission hole(10a). The first electromagnet comprises a first coil(33). The first coil is reeled in a first yoke(31) being arranged while surrounding one side of the light transmission hole and a part of the first yoke. The second electromagnet comprises a second coil. The second coil is reeled in a second yoke(41) being arranged to be faced to the first yoke while surrounding the other side of the light transmission hole and a part of the second yoke. |
