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. 05, 2013
Filed:
Feb. 19, 2010
Hideo Iizuka, Ann Arbor, MI (US);
Nader Engheta, Berwyn, PA (US);
Hideo Iizuka, Ann Arbor, MI (US);
Nader Engheta, Berwyn, PA (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Erlanger, KY (US);
Abstract
A photonic crystal structure that is composed of a host media having periodic dielectric holes disposed in the media at a period of a. Each dielectric hole has a radius r. The host media has an absolute refractive index expressed as |n| that is less than 0.2. The photonic crystal structure has at least one reflection minimization layer disposed at an air/photonic crystal interface. The reflection minimization layer has periodic dielectric holes disposed therein at a period awith each dielectric hole having a radius rsuch that a=aand r>rand a beam steerable device including the photonic crystal structure. The device having a scanning rate of larger than 1 KHz and a scanning angle up to ±25 degrees.