Actuator and blade drive device for camera

Details Actuator and blade drive device for camera Actuator and blade drive device for camera

2009-03-20

2010-06-08

Koval, Melissa J (Department: 2862)

Photography

Camera detail

Shutter

C396S508000

Reexamination Certificate

active

07731434

ABSTRACT:
An electromagnetic actuator includes; a coil for excitation; a stator excited with different magnetic poles by energization of the coil; a rotor magnetized with different magnetic poles in a circumferential direction thereof, and rotated by a magnetic force generated between the rotor and the stator; and an outputting member rotated in conjunction with the rotor and outputting rotational movement of the rotor to a first blade and a second blade. The rotor and the outputting member are jointed by welding and a welding portion of the rotor lies in a boundary of the magnetic poles thereof.

REFERENCES:
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patent: 2008/0240707 (2008-10-01), Yasuda et al.
patent: 2009/0148154 (2009-06-01), Suzuki et al.
patent: 9-152645 (1997-06-01), None
patent: 10-127033 (1998-05-01), None
patent: 2004-191750 (2004-07-01), None
patent: 2006-113256 (2006-04-01), None
patent: 2006-246556 (2006-09-01), None
International Search Report for International Application No. PCT/JP07/074322 dated Mar. 5, 2008.

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