Auto-focusing camera

Photography – With exposure objective focusing means – focusing aid – or... – Lens drive circuit or motor structure

Reexamination Certificate

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Details

C396S075000

Reexamination Certificate

active

07729605

ABSTRACT:
An auto-focusing camera includes a stator (20), a rotor (30) rotatably disposed in the stator, and a lens unit (40) received in the rotor. The stator includes a stator core (23) and coils (25) winding on the stator core. The rotor is a permanent magnet (32) securely mounted around the lens unit. The lens unit forms three ears (414) at a bottom thereof, and a wave-shaped surface (220) is formed on a top of an inner, bottom flange (22) of the stator. The ears abut the wave-shaped surface. The ears of the lens unit move along the wave-shaped surface during rotation of the rotor and the lens mount, and thus the lens unit moves telescopically along an axial direction thereof.

REFERENCES:
patent: 7039309 (2006-05-01), Hsiao
patent: 7359631 (2008-04-01), Naka et al.
patent: 7430368 (2008-09-01), Lee
patent: 2007/0280667 (2007-12-01), Shin
patent: 2008/0118239 (2008-05-01), Hsiao et al.
patent: 2008/0225415 (2008-09-01), Bogue et al.

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