Lens actuator, lens unit using the lens actuator and method...

Details Lens actuator, lens unit using the lens actuator and method... Lens actuator, lens unit using the lens actuator and method...

2011-05-17

2011-05-17

Collins, Darryl J (Department: 2873)

Optical: systems and elements

Lens

With support

Reexamination Certificate

active

07944631

ABSTRACT:
A lens actuator has a carrier, a cover, a first spring, a second spring, a coil, and a magnet. The carrier with a cylindrical shape is provided with a hollow section formed along a first direction, and has a holding section formed on one side of the first direction. The hollow section has a shape configured to mount a lens barrel therein. The cover, which is disposed on the side having the holding section of the carrier, has a supporting section that meets with the holding section of the carrier. The first spring and the second spring make a resilient contact with each of both surfaces in the first direction of the carrier. The coil is circumferentially disposed on the carrier so as to face the magnet. Of the coil and the magnet, one is mounted on the carrier and the other is disposed on the outer or the inner periphery of the carrier.

REFERENCES:
patent: 7457061 (2008-11-01), Sata et al.
patent: 2006/0181632 (2006-08-01), Makii et al.
patent: 2008/0259467 (2008-10-01), Chung
patent: 2008-032768(A) (2008-02-01), None

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