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. 13, 2012
Filed:
Dec. 14, 2009
Yi-shin Lin, Dayuan Township, TW;
Hung-chun Lin, Lugu Township, TW;
Hung-wei Chen, Yongjing Township, TW;
Yao-tzung Wang, Jhubei, TW;
Yi-Shin Lin, Dayuan Township, TW;
Hung-Chun Lin, Lugu Township, TW;
Hung-Wei Chen, Yongjing Township, TW;
Yao-Tzung Wang, Jhubei, TW;
Other;
Abstract
A method for providing auto focus for camera module that is electrically tunable using liquid crystal optical element is provided. The liquid crystal optical element includes substrate layers, insulating layer, three electrodes, liquid crystal layer between the substrate layers, and voltages applied between electrodes to control the optical power of the liquid crystal layer. The liquid crystal layer is coupled onto a camera module for provide auto focus on object located between 10 cm to infinity, achieving a response time at most of about 600 milliseconds. Tuning for the predetermined focal length is provided for liquid crystal optical element when object is located between 10 cm to infinity.