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:
Apr. 13, 2010
Filed:
Sep. 06, 2007
Cheng-fa Weng, Taipei Hsien, TW;
Ching-hsing Huang, Taipei Hsien, TW;
Jen-te Wang, Taipei Hsien, TW;
Jen-hung Chung, Taipei Hsien, TW;
Chou-chen Shih, Taipei Hsien, TW;
Cheng-Fa Weng, Taipei Hsien, TW;
Ching-Hsing Huang, Taipei Hsien, TW;
Jen-Te Wang, Taipei Hsien, TW;
Jen-Hung Chung, Taipei Hsien, TW;
Chou-Chen Shih, Taipei Hsien, TW;
Foxconn Technology Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A two-step auto focus camera with two focal points includes a lens unit () and a permanent magnet () being fixedly mounted around the lens unit to move with the lens unit. Upper and lower coil seats () are mounted around the lens unit and are arranged at upper and lower sides of the magnet, respectively. Upper and lower coils () wind around the upper and lower coil seats, respectively. A circuit board () supplies a current to each of the coils, wherein the current to each coil has a plurality of square waves in one focusing time for the lens unit to move from one focal point to the other focal point.