Automatic focusing structure and digital camera module with...

Details Automatic focusing structure and digital camera module with... Automatic focusing structure and digital camera module with...

2006-06-07

2009-10-27

Koval, Melissa J (Department: 2862)

Photography

With exposure objective focusing means, focusing aid, or...

Lens drive circuit or motor structure

C359S696000

Reexamination Certificate

active

07609959

ABSTRACT:
An automatic focusing structure includes a holder (20), a barrel (10) and a piezoelectric actuator (30). The holder has a resistor (26) thereon. The barrel is slidably received in the holder. At least one lens element (12) received in the barrel, and an electrode (16) is located on an outer periphery wall of the barrel. The electrode slidably contacts the resistor. The actuator mounted under the barrel to move relative to the holder. When the barrel slides relative to the holder, the resistance value of the resistor is changed. Information from the resistor corresponds to a position information of the barrel, and the position information is feedback to the actuator so as to adjust the position of the barrel.

REFERENCES:
patent: 5675444 (1997-10-01), Ueyama et al.
patent: 5956532 (1999-09-01), Arita
patent: 6188530 (2001-02-01), Katsuragi
patent: 2004/0041497 (2004-03-01), Hamada et al.
patent: 2005/0122069 (2005-06-01), Okada
patent: 2006/0028743 (2006-02-01), Yamashita et al.
patent: 2006/0140609 (2006-06-01), Chen
patent: 2539201 (2003-03-01), None
patent: 1629713 (2005-06-01), None
patent: 1668069 (2005-09-01), None
patent: 62262009 (1987-11-01), None

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