The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2008
Filed:
Feb. 16, 2007
Ki Mun Paik, Gyunggi-Do, KR;
Dong Kyun Lee, Seoul, KR;
Burhanettin Koc, Gyunggi-Do, KR;
Byung Woo Kang, Seoul, KR;
Ki Mun Paik, Gyunggi-Do, KR;
Dong Kyun Lee, Seoul, KR;
Burhanettin Koc, Gyunggi-Do, KR;
Byung Woo Kang, Seoul, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, KR;
Abstract
A lens driving device includes a lens barrel having a lens holder and an extension part extended from the lens holder. The device also includes a piezoelectric vibrator with a piezoelectric body flexed and bent in response to power application with a friction member in contact with the extension part, thereby providing driving power for transporting the lens barrel. The device further includes a preload member having a free end in resilient contact with a rear end of the piezoelectric body to compress the piezoelectric vibrator against the extension part and a guiding part for guiding the transport of the lens barrel in the optical axis direction. This allows a simplified and miniaturized structure, a large transport range with low input power to achieve excellent resolution of positioning, minimal loss of driving power, simplified mechanism for guiding the transport of the lens, and accurate and stable transport of the lens.