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:
Feb. 16, 2010
Filed:
Jul. 17, 2006
Xing-peng Yang, Bei-Jing, CN;
Ying-bai Yan, Bei-Jing, CN;
Guo-fan Jin, Bei-Jing, CN;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A light guide device () includes a light guide substrate () and a sub-wavelength grating (). The light guide substrate has a light input surface (), a light output surface () adjacent to the light input surface (), a bottom surface () opposite to the light output surface (). In the light guide plate, stress-induced birefringence is introduced to achieve the polarization state conversion. The SWGlocated on the light output surface includes a top layer () and a bottom layer (). The SWGis configured to work as a reflective polarizing beam splitter, consistent with the principle of rigorous coupled-wave theory.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile