Imaging device, lens drive control method and recording medium

Details Imaging device, lens drive control method and recording medium Imaging device, lens drive control method and recording medium

2006-07-20

2010-06-15

Stultz, Jessica T (Department: 2873)

Optical: systems and elements

Lens

With support

C359S819000, C359S822000, C359S823000

Reexamination Certificate

active

07738198

ABSTRACT:
A controller controls a drive waveform generator to apply a predetermined voltage to a piezoelectric element and deform the piezoelectric element, thereby moving a lens. The controller acquires the position of the lens based on a magnetic field intensity detected by a Hall device. A shock detection circuit measures a voltage generated by deformation of the piezoelectric element caused by an external shock. The controller determines whether or not the voltage measured by the shock detection circuit is larger than a predetermined threshold, and detects positional misalignment of the lens. When detecting the positional misalignment, the controller resets the lens at a position acquired before the shock was applied.

REFERENCES:
patent: 6940542 (2005-09-01), Kitazawa et al.
patent: 2005/0146633 (2005-07-01), Kuo et al.
patent: 2007/0149260 (2007-06-01), Satoh et al.
patent: 04-278906 (1992-10-01), None
patent: 08-179416 (1996-07-01), None
patent: 10-187245 (1998-07-01), None
patent: 10-209516 (1998-08-01), None
patent: 11-289780 (1999-10-01), None
patent: 11-291951 (1999-10-01), None
patent: 2000-208825 (2000-07-01), None
patent: 2000-258835 (2000-09-01), None
patent: 2001-195856 (2001-07-01), None
patent: 2004-222037 (2004-08-01), None
patent: 2004-294759 (2004-10-01), None
patent: 2004-354531 (2004-12-01), None
patent: 2005-055714 (2005-03-01), None
patent: 2005-159559 (2005-06-01), None
patent: 2005-242716 (2005-09-01), None

Affiliated with

Also associated with

Rating

Imaging device, lens drive control method and recording medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Imaging device, lens drive control method and recording medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imaging device, lens drive control method and recording medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4250303