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:
Jun. 18, 2013
Filed:
Aug. 13, 2010
Applicants:
Hideo Iizuka, Ann Arbor, MI (US);
Nader Engheta, Berwyn, PA (US);
Inventors:
Hideo Iizuka, Ann Arbor, MI (US);
Nader Engheta, Berwyn, PA (US);
Assignees:
Toyota Motor Engineering & Mfg. North America, Inc., Erlanger, KY (US);
Trustees of the University of Pennsylvania, Philadelphia, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/18 (2006.01); G02B 6/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
Optical devices using double-groove diffraction gratings having periodic sets of TiOelements on one or more surfaces of an SiOsubstrate are disclosed. First order components of incident polarized light coupled into the substrate are reflected so as to propagate through the substrate to terminus points where they either change direction for further propagation or exit the substrate. A windshield display system using the principles of the invention is disclosed.