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. 14, 2009
Filed:
Jul. 12, 2006
Applicants:
Yu-fen Chung, Hsinchu, TW;
Tsung-kai Chang, Hsinchu Hsien, TW;
Chin-sung Liu, Hsinchu, TW;
Inventors:
Assignee:
TopRay Technologies, Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus of auto-focusing is provided, including an outer holder, a wire set, a magnet set and an inner-holder. The magnet set is fixed at the corners inside the outer-holder. The inner-holder is a hollow cylinder surrounded by a coil. The wire set is connected to the top and the bottom ends of the outer-holder. The other end of the wire set is connected to the outer circumference of the inner-holder. Therefore, the inner-holder is a hanging moveable component, which can move vertically when the electrical current flows through the coil to achieve the object of auto-focusing.