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. 02, 2010
Filed:
Jul. 22, 2008
Wun-chang Shih, Taipei Hsien, TW;
Ching-hsing Huang, Taipei Hsien, TW;
Cheng-fa Weng, Taipei Hsien, TW;
Jen-te Wang, Taipei Hsien, TW;
Huai-chao You, Shenzhen, CN;
Da-yi Wen, Shenzhen, CN;
Biao Wang, Shenzhen, CN;
Yun-ming HU, Shenzhen, CN;
Wun-Chang Shih, Taipei Hsien, TW;
Ching-Hsing Huang, Taipei Hsien, TW;
Cheng-Fa Weng, Taipei Hsien, TW;
Jen-Te Wang, Taipei Hsien, TW;
Huai-Chao You, Shenzhen, CN;
Da-Yi Wen, Shenzhen, CN;
Biao Wang, Shenzhen, CN;
Yun-Ming Hu, Shenzhen, CN;
Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Shenzhen, Guangdong Province, CN;
Foxconn Technology Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
An exemplary camera module includes a lens mount, a lens unit, a magnet unit, a printed circuit board (PCB)-based Rogowski coil and a blade spring. The PCB-based Rogowski coil is fixed around the lens unit. The PCB-based Rogowski coil establishes an induced magnetic field when an electric current is applied thereto. The induced magnetic field interacts with the magnet unit to generate a magnetic force moving the lens unit telescopically. The blade spring includes a plurality of ribs. Each rib includes a moveable end connected with the lens unit and an opposite fixed end. The moveable end moves together with the lens unit with respect to the fixed end to cause the ribs to distort and generate an elastic force. The lens unit stops at a focal position when the magnetic force and the elastic force come to a balance.