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:
Mar. 10, 2015
Filed:
Nov. 29, 2013
Applicant:
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Inventor:
Ping-Han Ku, New Taipei, TW;
Assignee:
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2006.01); G03B 13/00 (2006.01); G02B 7/04 (2006.01);
U.S. Cl.
CPC ...
G02B 7/04 (2013.01);
Abstract
A lens driving system is configured for driving a lens to a focus position, and includes a control unit and a driving unit electrically connected to the control unit and coupled with the lens. The control unit acquires the focus position, calculates a main current value according to the focus position, and calculates a number of secondary current values according to the main current value. The secondary current values gradually increase to the main current value. The driving unit drives the lens to the focus position according to the secondary current values.