Lens driving unit and camera module comprising the same

Details Lens driving unit and camera module comprising the same Lens driving unit and camera module comprising the same

2009-04-17

2011-11-01

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S824000, C359S819000

Reexamination Certificate

active

08049971

ABSTRACT:
Provided are a lens driving unit that generates a precise linear motion in a spatially limited structure by using a bending vibration piezoelectric motor having a new structure, and a camera module comprising the lens driving unit. The lens driving unit includes: a lens carrier supporting a lens and comprising a guide axis exposed at least partially to the outside and extending in a direction substantially perpendicular to the lens; and a piezoelectric driving unit having a center portion contacting the guide axis according to a bending motion of a piezoelectric element and moving the lens carrier in a direction in which the guide axis extends.

REFERENCES:
patent: 6710950 (2004-03-01), Rouvinen et al.
patent: 2006/0119218 (2006-06-01), Doshida et al.
patent: 2006/0274186 (2006-12-01), Machida
patent: 2008/0144201 (2008-06-01), Koc et al.
patent: 10-2004-0027753 (2004-04-01), None
patent: 10-0817033 (2008-03-01), None
Office Action established for CN200910140361.5.

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