| US 7,595,947 B2 | ||
| Lens driving device | ||
| Dong Kyun Lee, Seoul (Korea, Republic of); and Byung Woo Kang, Seoul (Korea, Republic of) | ||
| Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon (Korea, Republic of) | ||
| Filed on Sep. 27, 2007, as Appl. No. 11/905,146. | ||
| Claims priority of application No. 10-2006-0094351 (KR), filed on Sep. 27, 2006. | ||
| Prior Publication US 2008/0084620 A1, Apr. 10, 2008 | ||
| Int. Cl. G02B 7/02 (2006.01) | ||
| U.S. Cl. 359—824 [310/323.01; 310/323.17] | 7 Claims |
| 1. A lens driving device comprising:
a lens barrel having at least one lens therein;
an actuator having a tip friction member provided at a leading end of a body thereof to be in contact with and disposed perpendicular
to a friction member provided on a vertical surface of an extension part extending from the lens barrel, the actuator being
flexed and bent upon application of power to provide a driving force necessary for driving the lens barrel in an optical axis
direction;
a preload member compressing the actuator against the lens barrel to keep the friction member and the tip friction member
in contact with each other; and
a guiding part guiding the lens barrel to move in the optical axis direction,
wherein the friction member and the tip friction member are formed of a super-hard alloy.
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