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:
Jan. 18, 2011
Filed:
Sep. 15, 2006
Chin-sung Liu, Hsinchu, TW;
Chang-ming Tsai, Jhudong Township, Hsinchu County, TW;
Chin-Sung Liu, Hsinchu, TW;
Chang-Ming Tsai, Jhudong Township, Hsinchu County, TW;
TopRay Technologies Inc., Hsinchu, TW;
Abstract
An actuator capable of providing movement forces in a first direction, a second direction, and a third direction is provided. The actuator includes two sets of repelling permanent magnets and yokes, a focusing coil, a tracking coil, and a tilting coil. The repelling and attractive fields generated by the permanent magnets enable the coils to generate independent movements in three axial directions. The two sets of permanent magnets are placed in a repelling position, with a small space between the two magnets to generate a field whose magnetic forces repel and attract within the surrounding range. The focusing, tilting and tracking coils are engaged with the lens holder whose movements in the first, second and third directions are determined by the amplitude and direction of the electric current in the focusing, tilting and tracking coils respectively.