Electromagnetic actuator and shutter device for camera
An electromagnetic actuator applied to a camera shutter device includes a rotatable disk-shaped rotor ( 10 ) magnetized with different polarities and having an output portion ( 10 b ), a first plate-like yoke ( 40 ) with a first magnetic pole part ( 41 ) opposed to the outer peripheral surface of th...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | An electromagnetic actuator applied to a camera shutter device includes a rotatable disk-shaped rotor (
10
) magnetized with different polarities and having an output portion (
10
b
), a first plate-like yoke (
40
) with a first magnetic pole part (
41
) opposed to the outer peripheral surface of the rotor (
10
) and a second plate-like yoke (
50
) with a second magnetic pole part (
51
) opposed to the outer peripheral surface of the rotor (
10
), and a first coil (
20
) and a second coil (
30
) wound around the joint areas of the yokes so that the first and second coils become flat in the same direction as the first yoke (
40
) and the second yoke (
50
). By virtue of this configuration, the electromagnetic actuator can be thinned. Furthermore, the camera shutter device using this electromagnetic actuator and thus the camera can be thinned and miniaturized. |
|---|