Lens actuating device

Details Lens actuating device Lens actuating device

2006-12-21

2008-11-04

Ben, Loha (Department: 2873)

Optical: systems and elements

Lens

With support

C359S823000, C359S694000, C359S696000, C396S133000

Reexamination Certificate

active

07446963

ABSTRACT:
A lens actuating device is applicable in a lens module. The lens module has at least a housing and a lens support in the space formed by the housing. The lens actuating device has at least a base disposed in the housing, a piezoelectric element disposed on the base for generating kinetic energy, a clamping component disposed on the piezoelectric element and a linkage element coupled to the lens support and clamped in the clamping component. The clamping component makes a corresponding motion upon receiving a kinetic energy created by the piezoelectric element, which allows a stick-slip friction to be generated in the clamping component to actuate the lens, thereby achieving optical zooming or focusing and avoiding the shortcomings of the prior art using for example a voice coil motor or a stepping motor.

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patent: 7280292 (2007-10-01), Akiba et al.
patent: 7365914 (2008-04-01), Sasaki et al.

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